INFO: task syz-executor.0:20592 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28216 pid:20592 ppid: 6516 flags:0x00024004
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
io_wq_exit_workers fs/io-wq.c:1204 [inline]
io_wq_put_and_exit+0x33a/0xb70 fs/io-wq.c:1239
io_uring_clean_tctx fs/io_uring.c:9774 [inline]
io_uring_cancel_generic+0x61d/0x690 fs/io_uring.c:9855
io_uring_files_cancel include/linux/io_uring.h:16 [inline]
do_exit+0x60c/0x2b40 kernel/exit.c:787
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x47d/0x21d0 kernel/signal.c:2820
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb0eb07cae9
RSP: 002b:00007fb0e85d1188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000269 RBX: 00007fb0eb190020 RCX: 00007fb0eb07cae9
RDX: 0000000000000000 RSI: 00000000000002ff RDI: 0000000000000003
RBP: 00007fb0eb0d6f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb0eb6c3b2f R14: 00007fb0e85d1300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b983a20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6461
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1079 Comm: kworker/u4:6 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_purge_orig
RIP: 0010:kasan_check_range+0x134/0x180 mm/kasan/generic.c:190
Code: 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a 5b b8 01 00 00 00 5d 41 5c 44 89 c2 e8 53 ef ff ff 5b 83 f0 01 5d 41 5c c3 48 29 c3 48 89
RSP: 0018:ffffc90004977860 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffff9200092ef14 RCX: ffffffff815c5bef
RDX: fffffbfff1fa875c RSI: 0000000000000008 RDI: ffffffff8fd43ad8
RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffff8fd43adf
R10: fffffbfff1fa875b R11: 0000000000000000 R12: 0000000000000002
R13: ffff88801bfd0ab0 R14: 00000000000006e6 R15: ffff88801bfd0ad0
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a46247028 CR3: 000000007cd6d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:199 [inline]
mark_lock+0xef/0x17b0 kernel/locking/lockdep.c:4586
mark_usage kernel/locking/lockdep.c:4517 [inline]
__lock_acquire+0x844/0x54a0 kernel/locking/lockdep.c:4984
lock_acquire kernel/locking/lockdep.c:5640 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5605
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:355 [inline]
batadv_purge_orig_ref+0x176/0x1550 net/batman-adv/originator.c:1243
batadv_purge_orig+0x17/0x60 net/batman-adv/originator.c:1272
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 85 d2 test %edx,%edx
2: 75 0b jne 0xf
4: 48 89 da mov %rbx,%rdx
7: 48 29 c2 sub %rax,%rdx
a: e9 55 ff ff ff jmpq 0xffffff64
f: 49 39 d2 cmp %rdx,%r10
12: 75 17 jne 0x2b
14: 49 0f be 02 movsbq (%r10),%rax
18: 41 83 e1 07 and $0x7,%r9d
1c: 49 39 c1 cmp %rax,%r9
1f: 7d 0a jge 0x2b
21: 5b pop %rbx
22: b8 01 00 00 00 mov $0x1,%eax
27: 5d pop %rbp
28: 41 5c pop %r12
* 2a: c3 retq <-- trapping instruction
2b: 44 89 c2 mov %r8d,%edx
2e: e8 53 ef ff ff callq 0xffffef86
33: 5b pop %rbx
34: 83 f0 01 xor $0x1,%eax
37: 5d pop %rbp
38: 41 5c pop %r12
3a: c3 retq
3b: 48 29 c3 sub %rax,%rbx
3e: 48 rex.W
3f: 89 .byte 0x89