INFO: task kworker/1:0:21 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:20432 pid: 21 ppid: 2 flags:0x00004000
Workqueue: events xfrm_state_gc_task
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
synchronize_rcu_expedited+0x680/0x750 kernel/rcu/tree_exp.h:845
synchronize_rcu+0x119/0x1e0 kernel/rcu/tree.c:3802
xfrm_state_gc_task+0xd9/0x9a0 net/xfrm/xfrm_state.c:537
process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
INFO: task udevd:4175 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:24848 pid: 4175 ppid: 3560 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6537
__mutex_lock_common+0xcfc/0x2400 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
device_lock include/linux/device.h:764 [inline]
uevent_show+0x17a/0x330 drivers/base/core.c:2408
dev_attr_show+0x50/0xb0 drivers/base/core.c:2110
sysfs_kf_seq_show+0x316/0x4c0 fs/sysfs/file.c:61
seq_read_iter+0x49b/0xd50 fs/seq_file.c:230
call_read_iter include/linux/fs.h:2167 [inline]
new_sync_read fs/read_write.c:404 [inline]
vfs_read+0x759/0xd60 fs/read_write.c:485
ksys_read+0x152/0x260 fs/read_write.c:623
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc2cdcb1407
RSP: 002b:00007ffc255b2e10 EFLAGS: 00000202
ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fc2cdbc3880 RCX: 00007fc2cdcb1407
RDX: 0000000000001000 RSI: 000055ec7ceaaa00 RDI: 0000000000000008
RBP: 00007fc2cddf9ff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a
R13: 00007fc2cddf9ea0 R14: 0000000000000000 R15: 000055ec7ceb21c0
INFO: task kworker/u4:7:4285 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:7 state:D
stack:26128 pid: 4285 ppid: 2 flags:0x00004000
Workqueue: events_unbound fsnotify_connector_destroy_workfn
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
schedule_timeout+0xbd/0x2d0 kernel/time/timer.c:2093
do_wait_for_common+0x2a2/0x450 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x48/0x60 kernel/sched/completion.c:138
__synchronize_srcu+0x2bb/0x350 kernel/rcu/srcutree.c:930
fsnotify_connector_destroy_workfn+0x40/0xa0 fs/notify/mark.c:234
process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
INFO: task kworker/u4:16:4998 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:16 state:D
stack:23568 pid: 4998 ppid: 2 flags:0x00004000
Workqueue: events_unbound fsnotify_mark_destroy_workfn
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
schedule_timeout+0xbd/0x2d0 kernel/time/timer.c:2093
do_wait_for_common+0x2a2/0x450 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x48/0x60 kernel/sched/completion.c:138
__synchronize_srcu+0x2bb/0x350 kernel/rcu/srcutree.c:930
fsnotify_mark_destroy_workfn+0x106/0x2f0 fs/notify/mark.c:924
process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
INFO: task syz.5.795:7122 blocked for more than 145 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.795 state:D
stack:27472 pid: 7122 ppid: 4588 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
synchronize_rcu_expedited+0x5c1/0x750 kernel/rcu/tree_exp.h:861
synchronize_rcu+0x119/0x1e0 kernel/rcu/tree.c:3802
pfkey_release+0x24f/0x310 net/key/af_key.c:185
__sock_release net/socket.c:651 [inline]
sock_close+0xd5/0x240 net/socket.c:1345
__fput+0x234/0x930 fs/file_table.c:311
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1140788dd9
RSP: 002b:00007fff36195988 EFLAGS: 00000246
ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f1140a03da0 RCX: 00007f1140788dd9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f1140a03da0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007f1140a03cb0 R11: 0000000000000246 R12: 0000000000032dc0
R13: 00007f1140a0209c R14: 0000000000032b89 R15: 00007f1140a02090
INFO: task dhcpcd:7154 blocked for more than 145 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:28368 pid: 7154 ppid: 3853 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6537
__mutex_lock_common+0xcfc/0x2400 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
synchronize_rcu_expedited+0x3a5/0x750 kernel/rcu/tree_exp.h:845
synchronize_rcu+0x119/0x1e0 kernel/rcu/tree.c:3802
__unregister_prot_hook+0x3f7/0x570 net/packet/af_packet.c:347
packet_do_bind+0x50a/0xda0 net/packet/af_packet.c:3253
__sys_bind+0x2e9/0x3e0 net/socket.c:1729
__do_sys_bind net/socket.c:1740 [inline]
__se_sys_bind net/socket.c:1738 [inline]
__x64_sys_bind+0x76/0x80 net/socket.c:1738
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3dbe40c2d7
RSP: 002b:00007ffc165f2518 EFLAGS: 00000213
ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 000055b775003b80 RCX: 00007f3dbe40c2d7
RDX: 0000000000000014 RSI: 00007ffc165f2530 RDI: 0000000000000003
RBP: 000055b77098b4b0 R08: 00007f3dbe4dbac0 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000213 R12: 0000000000000000
R13: 000055b774ffde60 R14: 0000000000000000 R15: 000055b7709a0ac0
INFO: task dhcpcd:7161 blocked for more than 146 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:28368 pid: 7161 ppid: 3853 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
synchronize_rcu_expedited+0x680/0x750 kernel/rcu/tree_exp.h:845
synchronize_rcu+0x119/0x1e0 kernel/rcu/tree.c:3802
__unregister_prot_hook+0x3f7/0x570 net/packet/af_packet.c:347
packet_do_bind+0x50a/0xda0 net/packet/af_packet.c:3253
__sys_bind+0x2e9/0x3e0 net/socket.c:1729
__do_sys_bind net/socket.c:1740 [inline]
__se_sys_bind net/socket.c:1738 [inline]
__x64_sys_bind+0x76/0x80 net/socket.c:1738
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3dbe40c2d7
RSP: 002b:00007ffc165f2518 EFLAGS: 00000213
ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 000055b775003b80 RCX: 00007f3dbe40c2d7
RDX: 0000000000000014 RSI: 00007ffc165f2530 RDI: 0000000000000003
RBP: 000055b77098b4b0 R08: 00007f3dbe4dbac0 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000213 R12: 0000000000000000
R13: 000055b774ffe3d0 R14: 0000000000000000 R15: 000055b7709a0ac0
INFO: task dhcpcd:7162 blocked for more than 146 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:28368 pid: 7162 ppid: 3853 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
synchronize_rcu_expedited+0x680/0x750 kernel/rcu/tree_exp.h:845
synchronize_rcu+0x119/0x1e0 kernel/rcu/tree.c:3802
__unregister_prot_hook+0x3f7/0x570 net/packet/af_packet.c:347
packet_do_bind+0x50a/0xda0 net/packet/af_packet.c:3253
__sys_bind+0x2e9/0x3e0 net/socket.c:1729
__do_sys_bind net/socket.c:1740 [inline]
__se_sys_bind net/socket.c:1738 [inline]
__x64_sys_bind+0x76/0x80 net/socket.c:1738
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3dbe40c2d7
RSP: 002b:00007ffc165f2518 EFLAGS: 00000213
ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 000055b775003b80 RCX: 00007f3dbe40c2d7
RDX: 0000000000000014 RSI: 00007ffc165f2530 RDI: 0000000000000003
RBP: 000055b77098b4b0 R08: 00007f3dbe4dbac0 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000213 R12: 0000000000000000
R13: 000055b774ffe200 R14: 0000000000000000 R15: 000055b7709a0ac0
INFO: task syz.2.816:7172 blocked for more than 147 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.816 state:D
stack:27472 pid: 7172 ppid: 4188 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
synchronize_rcu_expedited+0x680/0x750 kernel/rcu/tree_exp.h:845
synchronize_rcu+0x119/0x1e0 kernel/rcu/tree.c:3802
pfkey_release+0x24f/0x310 net/key/af_key.c:185
__sock_release net/socket.c:651 [inline]
sock_close+0xd5/0x240 net/socket.c:1345
__fput+0x234/0x930 fs/file_table.c:311
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9c3e35bdd9
RSP: 002b:00007ffc2500b218 EFLAGS: 00000246
ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f9c3e5d6da0 RCX: 00007f9c3e35bdd9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f9c3e5d6da0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007f9c3e5d6cb0 R11: 0000000000000246 R12: 00000000000333d6
R13: 00007f9c3e5d509c R14: 00000000000331ad R15: 00007f9c3e5d5090
INFO: task syz.4.820:7187 blocked for more than 147 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.820 state:D
stack:25936 pid: 7187 ppid: 4184 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5049 [inline]
__schedule+0x11ef/0x43c0 kernel/sched/core.c:6395
schedule+0x11b/0x1e0 kernel/sched/core.c:6478
exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
synchronize_rcu_expedited+0x680/0x750 kernel/rcu/tree_exp.h:845
synchronize_rcu+0x119/0x1e0 kernel/rcu/tree.c:3802
packet_release+0x976/0xc30 net/packet/af_packet.c:3175
__sock_release net/socket.c:651 [inline]
sock_close+0xd5/0x240 net/socket.c:1345
__fput+0x234/0x930 fs/file_table.c:311
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff77b324dd9
RSP: 002b:00007ffe0b3e30e8 EFLAGS: 00000246
ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ff77b59fda0 RCX: 00007ff77b324dd9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007ff77b59fda0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007ff77b59fcb0 R11: 0000000000000246 R12: 0000000000033636
R13: 00007ff77b59e18c R14: 000000000003347d R15: 00007ff77b59e180
Showing all locks held in the system:
2 locks held by kworker/1:0/21:
#0:
ffff888016c70938
(
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work+0x761/0x1010 kernel/workqueue.c:-1
#1: ffffc90000db7d00 (xfrm_state_gc_work){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 kernel/workqueue.c:2285
1 lock held by khungtaskd/27:
#0: ffffffff8c31eb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3949:
#0:
ffff88802c993098
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1:
ffffc900026562e8
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x5df/0x1a70 drivers/tty/n_tty.c:2158
4 locks held by udevd/4175:
#0:
ffff888059c6e9e0
(
&p->lock
){+.+.}-{3:3}
, at: seq_read_iter+0xad/0xd50 fs/seq_file.c:182
#1:
ffff888078d6d888
(&of->mutex
){+.+.}-{3:3}
, at: kernfs_seq_start+0x51/0x3c0 fs/kernfs/file.c:112
#2:
ffff8880635cfa00
(
kn->active
#32){++++}-{0:0}
, at: kernfs_seq_start+0x71/0x3c0 fs/kernfs/file.c:113
#3: ffff8880631b7220
(
&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:764 [inline]
, at: uevent_show+0x17a/0x330 drivers/base/core.c:2408
9 locks held by kworker/0:5/4231:
2 locks held by kworker/u4:7/4285:
#0:
ffff888016c79138
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x761/0x1010 kernel/workqueue.c:-1
#1:
ffffc9000337fd00
(
connector_reaper_work){+.+.}-{0:0}
, at: process_one_work+0x79f/0x1010 kernel/workqueue.c:2285
3 locks held by kworker/u4:8/4292:
#0:
ffff888016c79138
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x761/0x1010 kernel/workqueue.c:-1
#1:
ffffc900033cfd00
((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 kernel/workqueue.c:2285
#2: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251
2 locks held by kworker/u4:16/4998:
#0: ffff888016c79138
(
(wq_completion)events_unbound){+.+.}-{0:0}
, at: process_one_work+0x761/0x1010 kernel/workqueue.c:-1
#1:
ffffc9000340fd00
(
(reaper_work).work
){+.+.}-{0:0}
, at: process_one_work+0x79f/0x1010 kernel/workqueue.c:2285
5 locks held by kworker/u4:17/5888:
#0:
ffff888016c79138
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x761/0x1010 kernel/workqueue.c:-1
#1:
ffffc9000315fd00
(
(work_completion)(&rdev->wiphy_work)
){+.+.}-{0:0}
, at: process_one_work+0x79f/0x1010 kernel/workqueue.c:2285
#2:
ffff888060750688
(
&rdev->wiphy.mtx
){+.+.}-{3:3}
, at: wiphy_lock include/net/cfg80211.h:5319 [inline]
, at: cfg80211_wiphy_work+0x31/0x260 net/wireless/core.c:420
#3:
ffff8880607e4d40
(
&wdev->mtx
){+.+.}-{3:3}
, at: sdata_lock net/mac80211/ieee80211_i.h:1036 [inline]
, at: ieee80211_ibss_work+0xa8/0x10e0 net/mac80211/ibss.c:1685
#4:
ffff888060751810 (&local->sta_mtx){+.+.}-{3:3}, at: ieee80211_ibss_sta_expire net/mac80211/ibss.c:1259 [inline]
ffff888060751810 (&local->sta_mtx){+.+.}-{3:3}, at: ieee80211_sta_merge_ibss net/mac80211/ibss.c:1302 [inline]
ffff888060751810 (&local->sta_mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x571/0x10e0 net/mac80211/ibss.c:1713
2 locks held by syz.5.795/7122:
#0:
ffff88805e9e8210
(
&sb->s_type->i_mutex_key
#11
){+.+.}-{3:3}
, at: inode_lock include/linux/fs.h:787 [inline]
, at: __sock_release net/socket.c:650 [inline]
, at: sock_close+0x90/0x240 net/socket.c:1345
#1:
ffffffff8c3235a8
(
rcu_state.exp_mutex
){+.+.}-{3:3}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
, at: synchronize_rcu_expedited+0x2d1/0x750 kernel/rcu/tree_exp.h:845
2 locks held by dhcpcd/7154:
#0:
ffff888078460120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1744 [inline]
, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
#1:
ffffffff8c3235a8
(
rcu_state.exp_mutex
){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a5/0x750 kernel/rcu/tree_exp.h:845
1 lock held by dhcpcd/7161:
#0:
ffff88802324c120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1744 [inline]
){+.+.}-{0:0}, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7162:
#0: ffff88802324e120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1744 [inline]
, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by syz.2.816/7172:
#0:
ffff888060ca5c10
(
&sb->s_type->i_mutex_key
#11
){+.+.}-{3:3}
, at: inode_lock include/linux/fs.h:787 [inline]
, at: __sock_release net/socket.c:650 [inline]
, at: sock_close+0x90/0x240 net/socket.c:1345
1 lock held by syz.4.820/7187:
#0:
ffff88805e9f2010
(
&sb->s_type->i_mutex_key#11
){+.+.}-{3:3}
, at: inode_lock include/linux/fs.h:787 [inline]
, at: __sock_release net/socket.c:650 [inline]
, at: sock_close+0x90/0x240 net/socket.c:1345
1 lock held by dhcpcd/7202:
#0:
ffff88802bc58120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1744 [inline]
, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7203:
#0:
ffff888079fc4120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1744 [inline]
, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7204:
#0: ffff888077a90120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1744 [inline]
#0: ffff888077a90120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by syz-executor/7206:
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by dhcpcd/7208:
#0:
ffff88805a94e120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1744 [inline]
ffff88805a94e120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7214:
#0: ffff8880606a6120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1744 [inline]
#0: ffff8880606a6120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7215:
#0: ffff888073256120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1744 [inline]
, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by syz-executor/7218:
#0:
ffffffff8d43d408
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7220:
#0:
ffffffff8d43d408
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7223:
#0:
ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7226:
#0:
ffffffff8d43d408
(rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
(rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by dhcpcd/7228:
#0:
ffff8880794bc120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1744 [inline]
, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7229:
#0: ffff88807d63e120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1744 [inline]
, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7230:
#0: ffff888071a5c120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1744 [inline]
#0: ffff888071a5c120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7231:
#0: ffff88801ad86120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1744 [inline]
#0: ffff88801ad86120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by dhcpcd/7232:
#0:
ffff88807a124120
(
sk_lock-AF_PACKET
){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1744 [inline]
){+.+.}-{0:0}, at: packet_do_bind+0x35/0xda0 net/packet/af_packet.c:3213
1 lock held by syz-executor/7234:
#0: ffffffff8d43d408 (rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7237:
#0: ffffffff8d43d408 (rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7241:
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7243:
#0:
ffffffff8d43d408
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7246:
#0:
ffffffff8d43d408
(
rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7249:
#0:
ffffffff8d43d408
(rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7252:
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7256:
#0:
ffffffff8d43d408
(rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7258:
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
1 lock held by syz-executor/7261:
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d43d408 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ee/0xf30 net/core/rtnetlink.c:5684
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
nmi_cpu_backtrace+0x3a2/0x3d0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xe0f/0xe50 kernel/hung_task.c:369
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4231 Comm: kworker/0:5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:number+0xbe9/0xf60 lib/vsprintf.c:-1
Code: 42 0f b6 04 28 84 c0 75 4e 42 0f b6 9c 3c 80 00 00 00 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 c0 75 45 41 88 1e 4d 85 ff 7e 51 <49> ff c6 e8 af b8 71 fd 49 ff c4 49 ff cf 4c 3b 74 24 08 73 87 eb
RSP: 0018:ffffc900031fdec0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000031 RCX: 0000000000100000
RDX: ffffc90013faa000 RSI: 00000000000fffff RDI: ffffc900031fdf41
RBP: ffffc900031fdfe0 R08: ffffc900031fdf57 R09: ffffc900031fdf40
R10: dffffc0000000000 R11: fffff5200063fbeb R12: ffffc900031fe2cb
R13: dffffc0000000000 R14: ffffc900031fe2cb R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd8ca8bfcc CR3: 0000000029d39000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vsnprintf+0x12d2/0x1c20 lib/vsprintf.c:2877
sprintf+0xe4/0x140 lib/vsprintf.c:3013
print_time kernel/printk/printk.c:1274 [inline]
info_print_prefix+0x168/0x360 kernel/printk/printk.c:1300
record_print_text kernel/printk/printk.c:1349 [inline]
console_unlock+0x66e/0x1120 kernel/printk/printk.c:2725
vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
dev_vprintk_emit+0x2e1/0x380 drivers/base/core.c:4638
dev_printk_emit+0xeb/0x140 drivers/base/core.c:4649
_dev_err+0x11b/0x170 drivers/base/core.c:4704
parse_uac2_sample_rate_range+0x992/0xc60 sound/usb/format.c:401
parse_audio_format_rates_v2v3+0x329/0x16c0 sound/usb/format.c:620
parse_audio_format_i+0x74c/0xe80 sound/usb/format.c:718
snd_usb_parse_audio_format+0x87/0x740 sound/usb/format.c:796
snd_usb_get_audioformat_uac12 sound/usb/stream.c:854 [inline]
__snd_usb_parse_audio_interface+0x18b1/0x4b00 sound/usb/stream.c:1196
snd_usb_parse_audio_interface+0x36/0xb0 sound/usb/stream.c:1274
create_standard_audio_quirk+0x59/0x120 sound/usb/quirks.c:100
snd_usb_create_quirk sound/usb/quirks.c:577 [inline]
create_composite_quirk+0x1ec/0x4e0 sound/usb/quirks.c:48
usb_audio_probe+0xb97/0x1d90 sound/usb/card.c:885
usb_probe_interface+0x5c5/0xb20 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x284/0xc80 drivers/base/dd.c:595
__driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
__device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
__device_attach+0x2a8/0x480 drivers/base/dd.c:979
bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
device_add+0xa00/0xfb0 drivers/base/core.c:3412
usb_set_configuration+0x1991/0x1fd0 drivers/usb/core/message.c:2223
usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x139/0x270 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x284/0xc80 drivers/base/dd.c:595
__driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
__device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
__device_attach+0x2a8/0x480 drivers/base/dd.c:979
bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
device_add+0xa00/0xfb0 drivers/base/core.c:3412
usb_new_device+0xd65/0x1660 drivers/usb/core/hub.c:2632
hub_port_connect drivers/usb/core/hub.c:5497 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5637 [inline]
port_event drivers/usb/core/hub.c:5799 [inline]
hub_event+0x2e4a/0x55e0 drivers/usb/core/hub.c:5881
process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287