INFO: task udevd:5438 blocked for more than 143 seconds.
Not tainted 6.9.0-syzkaller-11002-g29c73fc794c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25208 pid:5438 tgid:5438 ppid:4541 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
bdev_open+0xe5/0xc70 block/bdev.c:897
blkdev_open+0x20d/0x2e0 block/fops.c:615
do_dentry_open+0x95c/0x1720 fs/open.c:955
do_open fs/namei.c:3650 [inline]
path_openat+0x289f/0x3280 fs/namei.c:3807
do_filp_open+0x235/0x490 fs/namei.c:3834
do_sys_openat2+0x13e/0x1d0 fs/open.c:1405
do_sys_open fs/open.c:1420 [inline]
__do_sys_openat fs/open.c:1436 [inline]
__se_sys_openat fs/open.c:1431 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1431
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f817fb169a4
RSP: 002b:00007ffd72cb99a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055a757f2d2a0 RCX: 00007f817fb169a4
RDX: 00000000000a0800 RSI: 000055a757f30360 RDI: 00000000ffffff9c
RBP: 000055a757f30360 R08: 0000000000000001 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055a757f22b00 R14: 0000000000000001 R15: 000055a757f19910
INFO: task syz-executor.0:5513 blocked for more than 143 seconds.
Not tainted 6.9.0-syzkaller-11002-g29c73fc794c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24664 pid:5513 tgid:5513 ppid:5450 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
bdev_release+0x184/0x700 block/bdev.c:1080
blkdev_release+0x15/0x20 block/fops.c:623
__fput+0x408/0x8b0 fs/file_table.c:422
__do_sys_close fs/open.c:1555 [inline]
__se_sys_close fs/open.c:1540 [inline]
__x64_sys_close+0x7f/0x110 fs/open.c:1540
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff7ed47b8da
RSP: 002b:00007ffede19ea80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff7ed47b8da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007ff7ed59d980 R08: 0000001b30560000 R09: 7fffffffffffffff
R10: 00007ff7ee0fc0b8 R11: 0000000000000293 R12: 000000000001b8c0
R13: ffffffffffffffff R14: 00007ff7ed000000 R15: 000000000001b57f
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e333d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e333d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e333d20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4845:
#0: ffff88802b39f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by udevd/5438:
#0: ffff8880207614c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0xe5/0xc70 block/bdev.c:897
1 lock held by syz-executor.0/5513:
#0: ffff8880207614c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 block/bdev.c:1080
1 lock held by syz-executor.0/5520:
#0: ffff8880207614c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0xe5/0xc70 block/bdev.c:897
1 lock held by syz-executor.0/5823:
#0: ffff8880207614c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0xe5/0xc70 block/bdev.c:897
1 lock held by syz-executor.0/5824:
#0: ffff8880207614c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0xe5/0xc70 block/bdev.c:897
1 lock held by syz-executor.0/5841:
#0: ffff8880207614c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0xe5/0xc70 block/bdev.c:897
1 lock held by syz-executor.0/5842:
#0: ffff8880207614c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0xe5/0xc70 block/bdev.c:897
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.9.0-syzkaller-11002-g29c73fc794c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1101 Comm: kworker/u8:8 Not tainted 6.9.0-syzkaller-11002-g29c73fc794c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__unwind_start+0x61b/0x7c0 arch/x86/kernel/unwind_orc.c:757
Code: 18 80 3c 01 00 48 8b 5c 24 20 74 08 48 89 df e8 ab ea ba 00 48 8b 1b 48 89 df 4c 8b 64 24 10 4c 89 e6 e8 48 18 55 00 4c 39 e3 <0f> 87 89 00 00 00 e8 da 15 55 00 4c 8b 64 24 28 eb 0c e8 ce 15 55
RSP: 0018:ffffc90004547378 EFLAGS: 00000283
RAX: 0000000000000000 RBX: ffffc90004547378 RCX: ffff8880229a9e00
RDX: ffff8880229a9e00 RSI: ffffc90004547470 RDI: ffffc90004547378
RBP: 1ffff920008a8e7c R08: ffffffff81412538 R09: ffffc900045473e0
R10: dffffc0000000000 R11: fffff520008a8e88 R12: ffffc90004547470
R13: ffffc900045473f0 R14: ffffc900045473e0 R15: ffffc900045473e8
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055bcaed8b600 CR3: 000000000e132000 CR4: 0000000000350ef0
Call Trace:
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x103/0x1b0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2195 [inline]
slab_free mm/slub.c:4436 [inline]
kfree+0x149/0x360 mm/slub.c:4557
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1579 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1b1e/0x2d70 net/mac80211/ibss.c:1605
ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline]
ieee80211_iface_work+0x8a3/0xf10 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x223/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244