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Message-ID: <67269ade.050a0220.35b515.0188.GAE@google.com>
Date: Sat, 02 Nov 2024 14:34:22 -0700
From: syzbot <syzbot+902fbaf700d3d08fadf8@...kaller.appspotmail.com>
To: bp@...en8.de, dave.hansen@...ux.intel.com, hpa@...or.com,
linux-kernel@...r.kernel.org, mingo@...hat.com,
syzkaller-bugs@...glegroups.com, tglx@...utronix.de, x86@...nel.org
Subject: [syzbot] [kernel?] KASAN: invalid-free in process_one_work
Hello,
syzbot found the following issue on:
HEAD commit: e42b1a9a2557 Merge tag 'spi-fix-v6.12-rc5' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16bbeebb980000
kernel config: https://syzkaller.appspot.com/x/.config?x=4340261e4e9f37fc
dashboard link: https://syzkaller.appspot.com/bug?extid=902fbaf700d3d08fadf8
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-e42b1a9a.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/964caa6b772d/vmlinux-e42b1a9a.xz
kernel image: https://storage.googleapis.com/syzbot-assets/1912109c7a7f/bzImage-e42b1a9a.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+902fbaf700d3d08fadf8@...kaller.appspotmail.com
==================================================================
BUG: KASAN: double-free in kfree_bulk include/linux/slab.h:767 [inline]
BUG: KASAN: double-free in kvfree_rcu_bulk+0x454/0x550 kernel/rcu/tree.c:3385
Free of addr ffff88802b07f500 by task kworker/u32:8/1141
CPU: 3 UID: 0 PID: 1141 Comm: kworker/u32:8 Not tainted 6.12.0-rc5-syzkaller-00005-ge42b1a9a2557 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events_unbound kfree_rcu_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report_invalid_free+0xaa/0xd0 mm/kasan/report.c:563
check_slab_allocation+0xfd/0x130 mm/kasan/common.c:225
kasan_slab_pre_free include/linux/kasan.h:195 [inline]
slab_free_hook mm/slub.c:2287 [inline]
slab_free_freelist_hook mm/slub.c:2371 [inline]
slab_free_bulk mm/slub.c:4603 [inline]
kmem_cache_free_bulk.part.0+0x310/0x7c0 mm/slub.c:4847
kfree_bulk include/linux/slab.h:767 [inline]
kvfree_rcu_bulk+0x454/0x550 kernel/rcu/tree.c:3385
kfree_rcu_work+0x2f2/0x5a0 kernel/rcu/tree.c:3464
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Allocated by task 6019:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:257 [inline]
__do_kmalloc_node mm/slub.c:4264 [inline]
__kmalloc_noprof+0x1e8/0x400 mm/slub.c:4276
kmalloc_noprof include/linux/slab.h:882 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
nl80211_set_cqm_rssi net/wireless/nl80211.c:13107 [inline]
nl80211_set_cqm+0xa19/0x1790 net/wireless/nl80211.c:13174
genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:729 [inline]
__sock_sendmsg net/socket.c:744 [inline]
____sys_sendmsg+0xaaf/0xc90 net/socket.c:2607
___sys_sendmsg+0x135/0x1e0 net/socket.c:2661
__sys_sendmsg+0x117/0x1f0 net/socket.c:2690
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 64:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:2342 [inline]
slab_free_freelist_hook mm/slub.c:2371 [inline]
slab_free_bulk mm/slub.c:4603 [inline]
kmem_cache_free_bulk.part.0+0x28e/0x7c0 mm/slub.c:4847
kfree_bulk include/linux/slab.h:767 [inline]
kvfree_rcu_bulk+0x454/0x550 kernel/rcu/tree.c:3385
kvfree_rcu_drain_ready kernel/rcu/tree.c:3559 [inline]
kfree_rcu_monitor+0x462/0x8b0 kernel/rcu/tree.c:3632
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Last potentially related work creation:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
__kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:541
kvfree_call_rcu+0x74/0xbe0 kernel/rcu/tree.c:3810
_cfg80211_unregister_wdev+0x38c/0x7f0 net/wireless/core.c:1238
ieee80211_remove_interfaces+0x36d/0x760 net/mac80211/iface.c:2300
ieee80211_unregister_hw+0x55/0x3a0 net/mac80211/main.c:1669
mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5625 [inline]
hwsim_exit_net+0x3ad/0x7d0 drivers/net/wireless/virtual/mac80211_hwsim.c:6505
ops_exit_list+0xb0/0x180 net/core/net_namespace.c:173
cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:626
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Second to last potentially related work creation:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
__kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:541
kvfree_call_rcu+0x74/0xbe0 kernel/rcu/tree.c:3810
_cfg80211_unregister_wdev+0x38c/0x7f0 net/wireless/core.c:1238
cfg80211_netdev_notifier_call+0xa5c/0x1110 net/wireless/core.c:1494
notifier_call_chain+0xb9/0x410 kernel/notifier.c:93
call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996
call_netdevice_notifiers_extack net/core/dev.c:2034 [inline]
call_netdevice_notifiers net/core/dev.c:2048 [inline]
__dev_change_net_namespace+0x46d/0x1360 net/core/dev.c:11583
dev_change_net_namespace include/linux/netdevice.h:3944 [inline]
cfg80211_switch_netns+0x11e/0x690 net/wireless/core.c:169
nl80211_wiphy_netns+0x134/0x2b0 net/wireless/nl80211.c:12364
genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:729 [inline]
__sock_sendmsg net/socket.c:744 [inline]
____sys_sendmsg+0xaaf/0xc90 net/socket.c:2607
___sys_sendmsg+0x135/0x1e0 net/socket.c:2661
__sys_sendmsg+0x117/0x1f0 net/socket.c:2690
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff88802b07f500
which belongs to the cache kmalloc-64 of size 64
The buggy address is located 0 bytes inside of
64-byte region [ffff88802b07f500, ffff88802b07f540)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2b07f
anon flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b0428c0 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5952, tgid 5952 (syz-executor), ts 46294022202, free_ts 46272064430
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
prep_new_page mm/page_alloc.c:1545 [inline]
get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
__alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265
alloc_slab_page mm/slub.c:2412 [inline]
allocate_slab mm/slub.c:2578 [inline]
new_slab+0x2ba/0x3f0 mm/slub.c:2631
___slab_alloc+0xdac/0x1880 mm/slub.c:3818
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3908
__slab_alloc_node mm/slub.c:3961 [inline]
slab_alloc_node mm/slub.c:4122 [inline]
__kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
kmalloc_noprof include/linux/slab.h:878 [inline]
call_modprobe kernel/module/kmod.c:84 [inline]
__request_module+0x2c6/0x6c0 kernel/module/kmod.c:173
__rtnl_newlink+0x64c/0x1920 net/core/rtnetlink.c:3748
rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772
rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:729 [inline]
__sock_sendmsg net/socket.c:744 [inline]
__sys_sendto+0x479/0x4d0 net/socket.c:2214
page last free pid 5952 tgid 5952 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1108 [inline]
free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:247 [inline]
slab_post_alloc_hook mm/slub.c:4085 [inline]
slab_alloc_node mm/slub.c:4134 [inline]
__kmalloc_cache_noprof+0x11e/0x300 mm/slub.c:4290
kmalloc_noprof include/linux/slab.h:878 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
ref_tracker_alloc+0x17c/0x5b0 lib/ref_tracker.c:203
__netdev_tracker_alloc include/linux/netdevice.h:4062 [inline]
netdev_hold include/linux/netdevice.h:4091 [inline]
netdev_hold include/linux/netdevice.h:4086 [inline]
rx_queue_add_kobject net/core/net-sysfs.c:1106 [inline]
net_rx_queue_update_kobjects+0x284/0x5f0 net/core/net-sysfs.c:1164
register_queue_kobjects net/core/net-sysfs.c:1898 [inline]
netdev_register_kobject+0x26d/0x3f0 net/core/net-sysfs.c:2143
register_netdevice+0x1473/0x1e90 net/core/dev.c:10491
team_newlink+0x92/0x160 drivers/net/team/team_core.c:2217
rtnl_newlink_create net/core/rtnetlink.c:3539 [inline]
__rtnl_newlink+0x1197/0x1920 net/core/rtnetlink.c:3759
rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3772
rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
Memory state around the buggy address:
ffff88802b07f400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
ffff88802b07f480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff88802b07f500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff88802b07f580: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
ffff88802b07f600: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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