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Message-ID: <67672251.050a0220.226966.0016.GAE@google.com>
Date: Sat, 21 Dec 2024 12:17:21 -0800
From: syzbot <syzbot+9a15d5aadb22e20c565e@...kaller.appspotmail.com>
To: davem@...emloft.net, edumazet@...gle.com, horms@...nel.org,
jhs@...atatu.com, jiri@...nulli.us, kuba@...nel.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org, pabeni@...hat.com,
syzkaller-bugs@...glegroups.com, xiyou.wangcong@...il.com
Subject: [syzbot] [net?] WARNING: suspicious RCU usage in emon
Hello,
syzbot found the following issue on:
HEAD commit: 59dbb9d81adf Merge tag 'xsa465+xsa466-6.13-tag' of git://g..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=111957e8580000
kernel config: https://syzkaller.appspot.com/x/.config?x=4f1586bab1323870
dashboard link: https://syzkaller.appspot.com/bug?extid=9a15d5aadb22e20c565e
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: https://storage.googleapis.com/syzbot-assets/8c125f36d349/disk-59dbb9d8.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a6c160c9e2d8/vmlinux-59dbb9d8.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e4c9eb7c31c9/bzImage-59dbb9d8.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9a15d5aadb22e20c565e@...kaller.appspotmail.com
Dec 17 20:07:01 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL deviceDec 17 20:07:01 Dec 17 20:07:01 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:01 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07Dec 17 20:07:01 Dec 17 20:07:01 syzkaller daemon.err dhcpcd[5485]: libudev: receDec 17 20:07:01 [ 411.791635][ T35] bridge0: port 1(bridge_slave_0) entered disabled state
Dec 17 20:07:01 Dec 17 20:07:01 syzkaller daemon.err dhcpcd[5485]: libudev: rece[ 411.806000][ T11]
ived NULL device[ 411.808879][ T11] =============================
Dec 17 20:07:0[ 411.815076][ T11] WARNING: suspicious RCU usage
Dec 17 20:07:01 Dec 17 20:07:01 [ 411.823433][ T11] 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0 Not tainted
Dec 17 20:07:01 [ 411.823465][ T11] -----------------------------
Dec 17 20:07:01 [ 411.837692][ T11] net/sched/sch_generic.c:1290 suspicious rcu_dereference_protected() usage!
syzkaller daemon[ 411.847668][ T11]
.err dhcpcd[5485[ 411.859149][ T11]
]: libudev: rece[ 411.868725][ T11] 3 locks held by kworker/u8:0/11:
ived NULL device[ 411.875527][ T11] #0: ffff888060765948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3204
Dec 17 20:07:0[ 411.887451][ T11] #1: ffffc90000107d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
1 syzkaller daem[ 411.900848][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
1 syzkaller daem[ 411.900848][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
1 syzkaller daem[ 411.900848][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
on.err dhcpcd[54[ 411.911626][ T11]
85]: libudev: re[ 411.918877][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0
ceived NULL devi[ 411.930806][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
ce
Dec 17 20:07[ 411.942227][ T11] Workqueue: bond0 bond_mii_monitor
:01 syzkaller da[ 411.948789][ T11] Call Trace:
emon.err dhcpcd[[ 411.953426][ T11] <TASK>
5485]: libudev: [ 411.957721][ T11] __dump_stack lib/dump_stack.c:94 [inline]
5485]: libudev: [ 411.957721][ T11] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
received NULL de[ 411.963750][ T11] lockdep_rcu_suspicious+0x210/0x3c0 kernel/locking/lockdep.c:6845
vice
Dec 17 20:[ 411.970498][ T11] dev_deactivate_queue+0x167/0x190 net/sched/sch_generic.c:1290
07:01 syzkaller [ 411.977046][ T11] netdev_for_each_tx_queue include/linux/netdevice.h:2562 [inline]
07:01 syzkaller [ 411.977046][ T11] dev_deactivate_many+0xe7/0xb20 net/sched/sch_generic.c:1363
daemon.err dhcpc[ 411.983425][ T11] dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
d[5485]: libudev[ 411.989370][ T11] ? __pfx_dev_deactivate+0x10/0x10 net/sched/sch_generic.c:1379
: received NULL [ 411.995916][ T11] ? __sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:351
device
Dec 17 2[ 412.003163][ T11] linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
0:07:01 syzkalle[ 412.009361][ T11] linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
r daemon.err dhc[ 412.015758][ T11] ? __pfx_ethtool_op_get_link+0x10/0x10 net/ethtool/ioctl.c:2726
pcd[5485]: libud[ 412.022739][ T11] ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
Dec 17 20:07:01 [ 412.029030][ T11] bond_check_dev_link+0x197/0x490 drivers/net/bonding/bond_main.c:873
Dec 17 20:07:01 [ 412.035490][ T11] ? __pfx_bond_check_dev_link+0x10/0x10 drivers/net/bonding/bond_main.c:4617
Dec 17 20:07:01 [ 412.042486][ T11] bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
Dec 17 20:07:01 [ 412.042486][ T11] bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
syzkaller daemon[ 412.048772][ T11] ? __pfx_bond_mii_monitor+0x10/0x10 drivers/net/bonding/bond_main.c:2829
.err dhcpcd[5485[ 412.055480][ T11] ? rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
.err dhcpcd[5485[ 412.055480][ T11] ? rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:737
]: libudev: rece[ 412.061598][ T11] ? lock_acquire+0x2f/0xb0 kernel/locking/lockdep.c:5820
ived NULL device[ 412.067446][ T11] ? process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
Dec 17 20:07:0[ 412.073909][ T11] process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
1 syzkaller daem[ 412.080205][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 kernel/locking/lockdep.c:122
on.err dhcpcd[54[ 412.087183][ T11] ? __pfx_process_one_work+0x10/0x10 include/linux/list.h:153
85]: libudev: re[ 412.093901][ T11] ? rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
85]: libudev: re[ 412.093901][ T11] ? rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:737
ceived NULL devi[ 412.100023][ T11] ? assign_work+0x1a0/0x250 kernel/workqueue.c:1200
ce
Dec 17 20:07[ 412.105986][ T11] process_scheduled_works kernel/workqueue.c:3310 [inline]
Dec 17 20:07[ 412.105986][ T11] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
:01 syzkaller da[ 412.111945][ T11] ? __pfx_worker_thread+0x10/0x10 include/linux/list.h:183
emon.err dhcpcd[[ 412.118395][ T11] kthread+0x2c1/0x3a0 kernel/kthread.c:389
5485]: libudev: [ 412.123809][ T11] ? __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
5485]: libudev: [ 412.123809][ T11] ? _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
received NULL de[ 412.130356][ T11] ? __pfx_kthread+0x10/0x10 include/linux/list.h:373
Dec 17 20:07:01 [ 412.136298][ T11] ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
Dec 17 20:07:01 [ 412.142060][ T11] ? __pfx_kthread+0x10/0x10 include/linux/list.h:373
Dec 17 20:07:01 [ 412.148002][ T11] ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
syzkaller daemon[ 412.154127][ T11] </TASK>
.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:01 syzkaller daemon.err dhcpcd[5485]: libudev: re[ 412.167601][ T11]
ceived NULL devi[ 412.170615][ T11] =============================
ce
Dec 17 20:07[ 412.176949][ T11] WARNING: suspicious RCU usage
:01 syzkaller da[ 412.183489][ T11] 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0 Not tainted
emon.err dhcpcd[[ 412.192115][ T11] -----------------------------
5485]: libudev: [ 412.197850][ T11] ./include/linux/rtnetlink.h:156 suspicious rcu_dereference_protected() usage!
received NULL de[ 412.208282][ T11]
vice
Dec 17 20:[ 412.219926][ T11]
07:01 syzkaller [ 412.219943][ T11] 3 locks held by kworker/u8:0/11:
daemon.err dhcpc[ 412.235884][ T11] #0: ffff888060765948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3204
Dec 17 20:07:01 [ 412.247735][ T11] #1: ffffc90000107d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
Dec 17 20:07:01 [ 412.261358][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
Dec 17 20:07:01 [ 412.261358][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
Dec 17 20:07:01 [ 412.261358][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
Dec 17 20:07:01 [ 412.272420][ T11]
syzkaller daemon[ 412.279756][ T11] CPU: 1 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0
Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]:Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL deviDec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: rece[ 412.576111][ T11] BUG: sleeping function called from invalid context at net/core/dev.c:11403
ived NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daDec 17 20:07:02 syzkaller daemonDec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: reDec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485[ 412.618213][ T11] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 11, name: kworker/u8:0
]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: reDec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL de[ 412.658812][ T11] preempt_count: 0, expected: 0
vice
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NDec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL deviDec 17 20:07:02 [ 412.702993][ T11] RCU nest depth: 1, expected: 0
Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: receDec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 syzkaller daemon.err dhcpcd[5485]: libudev: received NULL device
Dec 17 20:07:0[ 412.723693][ T11] 3 locks held by kworker/u8:0/11:
2 syzkaller kern[ 412.723713][ T11] #0: ffff888060765948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3204
.info kernel: [ [ 412.723848][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
.info kernel: [ [ 412.723848][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
.info kernel: [ [ 412.723848][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
411.753730][ [ 412.723913][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0
Dec 17 20:07:02 [ 412.723937][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Dec 17 20:07:02 [ 412.723951][ T11] Workqueue: bond0 bond_mii_monitor
syzkaller daemon[ 412.723977][ T11] Call Trace:
.err dhcpcd[5485[ 412.723984][ T11] <TASK>
]: libudev: rece[ 412.723993][ T11] __dump_stack lib/dump_stack.c:94 [inline]
]: libudev: rece[ 412.723993][ T11] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
ived NULL device[ 412.724020][ T11] __might_resched+0x3c0/0x5e0 kernel/sched/core.c:8758
Dec 17 20:07:02 [ 412.724055][ T11] ? __pfx___might_resched+0x10/0x10 kernel/sched/core.c:5880
Dec 17 20:07:02 [ 412.724087][ T11] synchronize_net+0x1b/0x60 net/core/dev.c:11403
Dec 17 20:07:02 [ 412.724112][ T11] dev_deactivate_many+0x2a1/0xb20 net/sched/sch_generic.c:1377
syzkaller daemon[ 412.724143][ T11] dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
.err dhcpcd[5485[ 412.724167][ T11] ? __pfx_dev_deactivate+0x10/0x10 net/sched/sch_generic.c:1379
]: libudev: rece[ 412.724193][ T11] ? __sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:351
Dec 17 20:07:02 [ 412.724224][ T11] linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
Dec 17 20:07:02 [ 412.724247][ T11] linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
Dec 17 20:07:02 [ 412.724271][ T11] ? __pfx_ethtool_op_get_link+0x10/0x10 net/ethtool/ioctl.c:2726
Dec 17 20:07:02 [ 412.724297][ T11] ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
syzkaller kern.i[ 412.724324][ T11] bond_check_dev_link+0x197/0x490 drivers/net/bonding/bond_main.c:873
nfo kernel: [ 4[ 412.724348][ T11] ? __pfx_bond_check_dev_link+0x10/0x10 drivers/net/bonding/bond_main.c:4617
11.791635][ T3[ 412.724391][ T11] bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
11.791635][ T3[ 412.724391][ T11] bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
5] bridge0: port[ 412.724425][ T11] ? __pfx_bond_mii_monitor+0x10/0x10 drivers/net/bonding/bond_main.c:2829
1(bridge_slave_[ 412.724451][ T11] ? rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
1(bridge_slave_[ 412.724451][ T11] ? rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:737
0) entered disab[ 412.724483][ T11] ? lock_acquire+0x2f/0xb0 kernel/locking/lockdep.c:5820
led state
Dec 1[ 412.724505][ T11] ? process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
7 20:07:02 syzka[ 412.724531][ T11] process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
ller daemon.err [ 412.724563][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 kernel/locking/lockdep.c:122
dhcpcd[5485]: li[ 412.724586][ T11] ? __pfx_process_one_work+0x10/0x10 include/linux/list.h:153
budev: received [ 412.724606][ T11] ? rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
budev: received [ 412.724606][ T11] ? rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:737
NULL device
Dec[ 412.724641][ T11] ? assign_work+0x1a0/0x250 kernel/workqueue.c:1200
17 20:07:02 syz[ 412.724665][ T11] process_scheduled_works kernel/workqueue.c:3310 [inline]
17 20:07:02 syz[ 412.724665][ T11] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kaller daemon.er[ 412.724700][ T11] ? __pfx_worker_thread+0x10/0x10 include/linux/list.h:183
r dhcpcd[5485]: [ 412.724722][ T11] kthread+0x2c1/0x3a0 kernel/kthread.c:389
libudev: receive[ 412.724747][ T11] ? __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
libudev: receive[ 412.724747][ T11] ? _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
d NULL device
D[ 412.724770][ T11] ? __pfx_kthread+0x10/0x10 include/linux/list.h:373
ec 17 20:07:02 s[ 412.724796][ T11] ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
yzkaller daemon.[ 412.724821][ T11] ? __pfx_kthread+0x10/0x10 include/linux/list.h:373
err dhcpcd[5485][ 412.724847][ T11] ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
: libudev: recei[ 412.724889][ T11] </TASK>
ved NULL device[ 412.724900][ T11]
Dec 17 20:07:02[ 412.724913][ T11] =============================
syzkaller daemo[ 412.724930][ T11] WARNING: suspicious RCU usage
n.err dhcpcd[548[ 412.724951][ T11] 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0 Tainted: G W
5]: libudev: rec[ 412.724981][ T11] -----------------------------
eived NULL devic[ 412.724996][ T11] kernel/rcu/tree_exp.h:946 Illegal synchronize_rcu_expedited() in RCU read-side critical section!
e
Dec 17 20:07:[ 412.725030][ T11]
02 syzkaller dae[ 412.725048][ T11]
mon.err dhcpcd[5[ 412.725077][ T11] 3 locks held by kworker/u8:0/11:
485]: libudev: r[ 412.725104][ T11] #0: ffff888060765948 ((wq_completion)bond0#5){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3204
eceived NULL dev[ 412.725250][ T11] #1: ffffc90000107d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
ice
Dec 17 20:0[ 412.725379][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
Dec 17 20:0[ 412.725379][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
Dec 17 20:0[ 412.725379][ T11] #2: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
7:02 syzkaller d[ 412.725439][ T11]
aemon.err dhcpcd[ 412.725449][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Tainted: G W 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0
[5485]: libudev:[ 412.725475][ T11] Tainted: [W]=WARN
received NULL d[ 412.725483][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
evice
Dec 17 20[ 412.725496][ T11] Workqueue: bond0 bond_mii_monitor
:07:02 syzkaller[ 412.725520][ T11] Call Trace:
daemon.err dhcp[ 412.725527][ T11] <TASK>
cd[5485]: libude[ 412.725536][ T11] __dump_stack lib/dump_stack.c:94 [inline]
cd[5485]: libude[ 412.725536][ T11] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
v: received NULL[ 412.725561][ T11] lockdep_rcu_suspicious+0x210/0x3c0 kernel/locking/lockdep.c:6845
device
Dec 17 [ 412.725586][ T11] synchronize_rcu_expedited+0x1e5/0x450 kernel/rcu/tree_exp.h:946
20:07:02 syzkall[ 412.725616][ T11] ? __pfx_synchronize_rcu_expedited+0x10/0x10 kernel/rcu/tree_exp.h:796
er daemon.err dh[ 412.725640][ T11] ? dump_stack_lvl+0x185/0x1f0 lib/dump_stack.c:123
cpcd[5485]: libu[ 412.725663][ T11] ? lockdep_hardirqs_on+0x7c/0x110 kernel/locking/lockdep.c:4468
dev: received NU[ 412.725689][ T11] ? add_taint+0x5f/0xd0 kernel/panic.c:607
LL device
Dec 1[ 412.725712][ T11] ? __pfx___might_resched+0x10/0x10 kernel/sched/core.c:5880
7 20:07:02 syzka[ 412.725739][ T11] synchronize_net+0x3e/0x60 net/core/dev.c:11405
ller daemon.err [ 412.725759][ T11] dev_deactivate_many+0x2a1/0xb20 net/sched/sch_generic.c:1377
dhcpcd[5485]: li[ 412.725788][ T11] dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
budev: received [ 412.725810][ T11] ? __pfx_dev_deactivate+0x10/0x10 net/sched/sch_generic.c:1379
NULL device
Dec[ 413.250325][ T11] ? __sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:351
17 20:07:02 syz[ 413.257589][ T11] linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
Dec 17 20:07:02 [ 413.263782][ T11] linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
syzkaller kern.w[ 413.270155][ T11] ? __pfx_ethtool_op_get_link+0x10/0x10 net/ethtool/ioctl.c:2726
arn kernel: [ 4[ 413.277130][ T11] ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
11.806000][ T1[ 413.283422][ T11] bond_check_dev_link+0x197/0x490 drivers/net/bonding/bond_main.c:873
1]
Dec 17 20:0[ 413.289881][ T11] ? __pfx_bond_check_dev_link+0x10/0x10 drivers/net/bonding/bond_main.c:4617
7:02 syzkaller k[ 413.296871][ T11] bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
7:02 syzkaller k[ 413.296871][ T11] bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
ern.warn kernel:[ 413.303157][ T11] ? __pfx_bond_mii_monitor+0x10/0x10 drivers/net/bonding/bond_main.c:2829
[ 411.808879][[ 413.309874][ T11] ? rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
[ 411.808879][[ 413.309874][ T11] ? rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:737
T11] ========[ 413.316003][ T11] ? lock_acquire+0x2f/0xb0 kernel/locking/lockdep.c:5820
================[ 413.321849][ T11] ? process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
=====
Dec 17 20[ 413.328316][ T11] process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
:07:02 syzkaller[ 413.334612][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 kernel/locking/lockdep.c:122
kern.warn kerne[ 413.341583][ T11] ? __pfx_process_one_work+0x10/0x10 include/linux/list.h:153
l: [ 411.815076[ 413.348301][ T11] ? rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
l: [ 411.815076[ 413.348301][ T11] ? rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:737
][ T11] WARNIN[ 413.354431][ T11] ? assign_work+0x1a0/0x250 kernel/workqueue.c:1200
G: suspicious RC[ 413.360376][ T11] process_scheduled_works kernel/workqueue.c:3310 [inline]
G: suspicious RC[ 413.360376][ T11] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
U usage
Dec 17 [ 413.366322][ T11] ? __pfx_worker_thread+0x10/0x10 include/linux/list.h:183
20:07:02 syzkall[ 413.372774][ T11] kthread+0x2c1/0x3a0 kernel/kthread.c:389
er kern.warn ker[ 413.378198][ T11] ? __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
er kern.warn ker[ 413.378198][ T11] ? _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
nel: [ 411.8234[ 413.384746][ T11] ? __pfx_kthread+0x10/0x10 include/linux/list.h:373
33][ T11] 6.13[ 413.390684][ T11] ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
.0-rc3-syzkaller[ 413.396449][ T11] ? __pfx_kthread+0x10/0x10 include/linux/list.h:373
-00026-g59dbb9d8[ 413.402388][ T11] ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
1adf #0 Not tain[ 413.408512][ T11] </TASK>
ted
Dec 17 20:07:02 syzkaller kern.warn kernel:Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 Dec 17 20:07:02 [ 413.421504][ T11] ------------[ cut here ]------------
---
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