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Message-ID: <000000000000fbe1cf05beaebdd4@google.com>
Date: Mon, 29 Mar 2021 08:43:24 -0700
From: syzbot <syzbot+b12240a286aa7cd4f3fb@...kaller.appspotmail.com>
To: davem@...emloft.net, glider@...gle.com, johan.hedberg@...il.com,
kuba@...nel.org, linux-bluetooth@...r.kernel.org,
linux-kernel@...r.kernel.org, luiz.dentz@...il.com,
marcel@...tmann.org, netdev@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: [syzbot] KMSAN: uninit-value in hci_event_packet (3)
Hello,
syzbot found the following issue on:
HEAD commit: 29ad81a1 arch/x86: add missing include to sparsemem.h
git tree: https://github.com/google/kmsan.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=100da362d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9c7da2160236454
dashboard link: https://syzkaller.appspot.com/bug?extid=b12240a286aa7cd4f3fb
compiler: Debian clang version 11.0.1-2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17e08faed00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=147a978ad00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b12240a286aa7cd4f3fb@...kaller.appspotmail.com
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_add+0x718/0x1890 net/bluetooth/hci_conn.c:553
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_add+0x718/0x1890 net/bluetooth/hci_conn.c:553
hci_conn_request_evt net/bluetooth/hci_event.c:2756 [inline]
hci_event_packet+0x18851/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_add include/net/bluetooth/hci_core.h:862 [inline]
BUG: KMSAN: uninit-value in hci_conn_add+0x1467/0x1890 net/bluetooth/hci_conn.c:587
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_add include/net/bluetooth/hci_core.h:862 [inline]
hci_conn_add+0x1467/0x1890 net/bluetooth/hci_conn.c:587
hci_conn_request_evt net/bluetooth/hci_event.c:2756 [inline]
hci_event_packet+0x18851/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289
__msan_chain_origin+0x57/0xa0 mm/kmsan/kmsan_instr.c:147
hci_conn_add+0x601/0x1890 net/bluetooth/hci_conn.c:532
hci_conn_request_evt net/bluetooth/hci_event.c:2756 [inline]
hci_event_packet+0x18851/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_add+0x17a3/0x1890 net/bluetooth/hci_conn.c:593
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_add+0x17a3/0x1890 net/bluetooth/hci_conn.c:593
hci_conn_request_evt net/bluetooth/hci_event.c:2756 [inline]
hci_event_packet+0x18851/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289
__msan_chain_origin+0x57/0xa0 mm/kmsan/kmsan_instr.c:147
hci_conn_add+0x601/0x1890 net/bluetooth/hci_conn.c:532
hci_conn_request_evt net/bluetooth/hci_event.c:2756 [inline]
hci_event_packet+0x18851/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_hash_lookup_ba include/net/bluetooth/hci_core.h:980 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2753 [inline]
hci_event_packet+0x18669/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_conn_request_evt net/bluetooth/hci_event.c:2769 [inline]
hci_event_packet+0x18a27/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.c:605
ksys_write+0x275/0x500 fs/read_write.c:658
__do_sys_write fs/read_write.c:670 [inline]
__se_sys_write+0x92/0xb0 fs/read_write.c:667
__x64_sys_write+0x4a/0x70 fs/read_write.c:667
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
=====================================================
=====================================================
BUG: KMSAN: uninit-value in hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
BUG: KMSAN: uninit-value in hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
BUG: KMSAN: uninit-value in hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
CPU: 1 PID: 8218 Comm: kworker/u5:2 Tainted: G B 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hci_proto_connect_ind include/net/bluetooth/hci_core.h:1404 [inline]
hci_conn_request_evt net/bluetooth/hci_event.c:2719 [inline]
hci_event_packet+0xf7bb/0x39e50 net/bluetooth/hci_event.c:6157
hci_rx_work+0x744/0xcf0 net/bluetooth/hci_core.c:4971
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2907 [inline]
__kmalloc_node_track_caller+0xa37/0x1430 mm/slub.c:4527
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x2f8/0xb30 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1099 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:389 [inline]
vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline]
vhci_write+0x18a/0x880 drivers/bluetooth/hci_vhci.c:285
call_write_iter include/linux/fs.h:1901 [inline]
new_sync_write fs/read_write.c:518 [inline]
vfs_write+0x1083/0x1b00 fs/read_write.
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
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