INFO: task syz-executor.3:3282 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.3 state:D stack:28592 pid: 3282 ppid: 32227 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
io_uring_cancel_generic+0x53d/0x690 fs/io_uring.c:9850
io_uring_files_cancel include/linux/io_uring.h:16 [inline]
do_exit+0x263/0x2a20 kernel/exit.c:781
do_group_exit+0x125/0x310 kernel/exit.c:923
get_signal+0x47d/0x21d0 kernel/signal.c:2855
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: 0033:0x7f7237be9ae9
RSP: 002b:00007f723511d218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f7237cfd0e8 RCX: 00007f7237be9ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7237cfd0e8
RBP: 00007f7237cfd0e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7237cfd0ec
R13: 00007ffc06a0229f R14: 00007f723511d300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b9838e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
1 lock held by in:imklog/6153:
=============================================
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: 935 Comm: kworker/u4:4 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_nc_worker
RIP: 0010:lock_release+0xe/0x720 kernel/locking/lockdep.c:5633
Code: fe ff ff 48 c7 c7 a8 7e 6f 8d e8 1d 65 61 00 e9 6d fd ff ff 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 <41> 55 41 54 49 89 fc 55 53 48 81 ec 90 00 00 00 48 8d 6c 24 10 48
RSP: 0018:ffffc900047efc78 EFLAGS: 00000293
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88801ad53a00 RSI: ffffffff88d48949 RDI: ffffffff8b9838e0
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff88d48941 R11: 0000000000000000 R12: ffffc900047efdb0
R13: 0000000000000000 R14: dffffc0000000000 R15: 00000000000002e3
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4376aed140 CR3: 000000001b7e8000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
rcu_lock_release include/linux/rcupdate.h:273 [inline]
rcu_read_unlock include/linux/rcupdate.h:721 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:416 [inline]
batadv_nc_worker+0x86b/0xfa0 net/batman-adv/network-coding.c:723
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), 3 bytes skipped:
0: 48 c7 c7 a8 7e 6f 8d mov $0xffffffff8d6f7ea8,%rdi
7: e8 1d 65 61 00 callq 0x616529
c: e9 6d fd ff ff jmpq 0xfffffd7e
11: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
18: 00
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 41 57 push %r15
25: 41 56 push %r14
* 27: 41 55 push %r13 <-- trapping instruction
29: 41 54 push %r12
2b: 49 89 fc mov %rdi,%r12
2e: 55 push %rbp
2f: 53 push %rbx
30: 48 81 ec 90 00 00 00 sub $0x90,%rsp
37: 48 8d 6c 24 10 lea 0x10(%rsp),%rbp
3c: 48 rex.W