INFO: task hung in dyn_event_release

Status: upstream: reported syz repro on 2026/09/06 11:17
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+41de64812d1c93ec6352@syzkaller.appspotmail.com
First crash: 16d, last: 7d16h
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2026/09/15 linux-5.15.y (ToT) 0248c33e835e syz [report] INFO: task hung in dyn_event_release
2026/09/15 upstream (ToT) 587858367581 syz Didn't crash

Sample crash report:
INFO: task syz.3.20:4385 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.20        state:D stack:27088 pid: 4385 ppid:  4340 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11c3/0x4350 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+0xdf5/0x2400 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
 trace_parse_run_command+0x1a8/0x2c0 kernel/trace/trace.c:10193
 vfs_write+0x304/0xd70 fs/read_write.c:592
 ksys_write+0x153/0x260 fs/read_write.c:647
 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: 0033:0x7fe249f75159
RSP: 002b:00007ffcd828b6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe24a1fcfa0 RCX: 00007fe249f75159
RDX: 0000000000000003 RSI: 0000200000000300 RDI: 0000000000000005
RBP: 00007fe24a00c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe24a1fcfac R14: 00007fe24a1fcfa0 R15: 00007fe24a1fcfa0
 </TASK>
INFO: task syz.2.19:4404 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.19        state:D stack:27472 pid: 4404 ppid:  4338 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11c3/0x4350 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+0xdf5/0x2400 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
 trace_parse_run_command+0x1a8/0x2c0 kernel/trace/trace.c:10193
 vfs_write+0x304/0xd70 fs/read_write.c:592
 ksys_write+0x153/0x260 fs/read_write.c:647
 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: 0033:0x7fd966378159
RSP: 002b:00007ffc7a4c28d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd9665fffa0 RCX: 00007fd966378159
RDX: 0000000000000003 RSI: 0000200000000300 RDI: 0000000000000005
RBP: 00007fd96640f024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd9665fffac R14: 00007fd9665fffa0 R15: 00007fd9665fffa0
 </TASK>
INFO: task syz.0.17:4405 blocked for more than 145 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.17        state:D
 stack:27504 pid: 4405 ppid:  4330 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11c3/0x4350 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+0xdf5/0x2400 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
 trace_parse_run_command+0x1a8/0x2c0 kernel/trace/trace.c:10193
 vfs_write+0x304/0xd70 fs/read_write.c:592
 ksys_write+0x153/0x260 fs/read_write.c:647
 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: 0033:0x7f47dd9b7159
RSP: 002b:00007ffc9a92ed78 EFLAGS: 00000246
 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f47ddc3efa0 RCX: 00007f47dd9b7159
RDX: 0000000000000003 RSI: 0000200000000300 RDI: 0000000000000005
RBP: 00007f47dda4e024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f47ddc3efac R14: 00007f47ddc3efa0 R15: 00007f47ddc3efa0
 </TASK>
INFO: task syz.4.21:4406 blocked for more than 147 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.21        state:D stack:27504 pid: 4406 ppid:  4339 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11c3/0x4350 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+0xdf5/0x2400 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
 trace_parse_run_command+0x1a8/0x2c0 kernel/trace/trace.c:10193
 vfs_write+0x304/0xd70 fs/read_write.c:592
 ksys_write+0x153/0x260 fs/read_write.c:647
 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: 0033:0x7f76c18f4159
RSP: 002b:00007ffeb80550f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f76c1b7bfa0 RCX: 00007f76c18f4159
RDX: 0000000000000003 RSI: 0000200000000300 RDI: 0000000000000005
RBP: 00007f76c198b024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f76c1b7bfac R14: 00007f76c1b7bfa0 R15: 00007f76c1b7bfa0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8c31ef60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:1/144:
2 locks held by getty/3942:
 #0: ffff88802ce6b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc900025e62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x594/0x1a50 drivers/tty/n_tty.c:2158
2 locks held by kworker/0:3/4255:
 #0: ffff888016c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0 kernel/workqueue.c:-1
 #1: ffffc90002fefd00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0 kernel/workqueue.c:2285
4 locks held by kworker/u4:6/4378:
 #0: ffff888016c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0 kernel/workqueue.c:-1
 #1: ffffc900033efd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0 kernel/workqueue.c:2285
 #2: ffffffff8d44d008 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251
 #3: ffffffff8c3239e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
 #3: ffffffff8c3239e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d1/0x750 kernel/rcu/tree_exp.h:845
4 locks held by syz.1.18/4383:
2 locks held by syz.3.20/4385:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.2.19/4404:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.0.17/4405:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: 
ffffffff8c36c788
 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.4.21/4406:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.5.22/4446:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.6.23/4447:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}
, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: 
ffffffff8c36c788
 (
event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.8.25/4508:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.7.24/4509:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.9.26/4510:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.3.28/4542:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.0.34/4618:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.4.37/4622:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.2.36/4625:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.5.57/4646:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.8.89/4750:
 #0: 
ffff88801bd1e460
 (sb_writers
#13
){.+.+}-{0:0}
, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: 
ffffffff8c36c788
 (
event_mutex
){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.6.85/4752:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.7.87/4753:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.9.100/4770:
 #0: 
ffff88801bd1e460
 (
sb_writers
#13
){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: 
ffffffff8c36c788
 (event_mutex
){+.+.}-{3:3}
, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.3.136/4852:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.0.137/4857:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.4.139/4870:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
2 locks held by syz.2.147/4878:
 #0: ffff88801bd1e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffffffff8c36c788 (event_mutex){+.+.}-{3:3}, at: dyn_event_release+0x1fb/0x480 kernel/trace/trace_dynevent.c:109
1 lock held by syz-executor/4891:
 #0: ffffffff8d44d008 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffffffff8d44d008 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x79f/0xf10 net/core/rtnetlink.c:5695
1 lock held by syz-executor/4895:
 #0: ffffffff8d44d008 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffffffff8d44d008 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x79f/0xf10 net/core/rtnetlink.c:5695
5 locks held by syz.1.186/4909:

=============================================

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 07/24/2026
Call Trace:
 <TASK>
 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+0xe1b/0xe60 kernel/hung_task.c:369
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4891 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:vsnprintf+0xc32/0x1c20 lib/vsprintf.c:2844
Code: 00 00 00 fc ff df 48 8b 44 24 20 42 80 3c 38 00 4c 8b 74 24 30 74 08 4c 89 f7 e8 29 79 b2 fd 4d 8b 26 49 8d 44 24 08 49 89 06 <4c> 89 e0 48 c1 e8 03 42 80 3c 38 00 0f 84 78 06 00 00 4c 89 e7 e8
RSP: 0018:ffffc9000353e6d0 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff0a0000000509 RCX: 1ffff920006a7cf8
RDX: ffffc9000353e7c0 RSI: 0000000000000010 RDI: 0000000000000029
RBP: ffffffff8a2be265 R08: ffff888026659dc0 R09: 0000000000000012
R10: 0000000000000012 R11: 0000000000000000 R12: ffffc9000353e780
R13: ffffc9000353e9a1 R14: 0000000000000004 R15: dffffc0000000000
FS:  000055557abe2500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000012195d309000 CR3: 000000004f765000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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+0x650/0x10f0 kernel/printk/printk.c:2725
 vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
 _printk+0xda/0x130 kernel/printk/printk.c:2299
 batadv_hardif_enable_interface+0x517/0x990 net/batman-adv/hard-interface.c:739
 batadv_softif_slave_add+0x72/0xf0 net/batman-adv/soft-interface.c:847
 do_set_master net/core/rtnetlink.c:2589 [inline]
 do_setlink+0xe79/0x29d0 net/core/rtnetlink.c:2800
 __rtnl_newlink net/core/rtnetlink.c:3464 [inline]
 rtnl_newlink+0x15bb/0x1920 net/core/rtnetlink.c:3586
 rtnetlink_rcv_msg+0x7f1/0xf10 net/core/rtnetlink.c:5698
 netlink_rcv_skb+0x1e9/0x430 net/netlink/af_netlink.c:2519
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x78f/0x940 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 __sys_sendto+0x46d/0x620 net/socket.c:2073
 __do_sys_sendto net/socket.c:2085 [inline]
 __se_sys_sendto net/socket.c:2081 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2081
 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: 0033:0x7f237928898e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffeba9a6a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000055557abe2500 RCX: 00007f237928898e
RDX: 0000000000000028 RSI: 00007f237a07e670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffeba9a6b04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f237a07e670 R15: 0000000000000000
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/09/06 11:16 linux-5.15.y 0996e0926f6b 4f7b22a0 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan INFO: task hung in dyn_event_release
* Struck through repros no longer work on HEAD.