INFO: task syz-executor.2:14390 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.2 state:D stack:27896 pid:14390 ppid: 10723 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+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: 0033:0x7f29aa6cfae9
RSP: 002b:00007f29a7c45218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f29aa7e2f68 RCX: 00007f29aa6cfae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f29aa7e2f68
RBP: 00007f29aa7e2f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f29aa7e2f6c
R13: 00007ffcfc36dfff R14: 00007f29a7c45300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b980ea0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6461
2 locks held by kworker/u4:2/44:
#0: ffff8880b9c39b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffff8880b9c279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
1 lock held by in:imklog/6157:
2 locks held by kworker/u4:7/8574:
=============================================
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: 2919 Comm: systemd-journal Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:find_stack lib/stackdepot.c:207 [inline]
RIP: 0010:__stack_depot_save+0x12b/0x4f0 lib/stackdepot.c:291
Code: 83 ff 03 74 6f 83 ff 01 74 70 48 8b 05 ae 4c 62 0c 89 da 81 e2 ff ff 0f 00 4c 8d 3c d0 49 8b 2f 48 85 ed 75 12 e9 9c 00 00 00 <48> 8b 6d 00 48 85 ed 0f 84 8f 00 00 00 39 5d 08 75 ee 44 3b 6d 0c
RSP: 0018:ffffc90001ad7a58 EFLAGS: 00000286
RAX: ffff88823b000000 RBX: 0000000014afc56c RCX: 0000000000000001
RDX: 00000000000fc56c RSI: 0000000000000cc0 RDI: 0000000000000003
RBP: ffff88808012ac50 R08: 00000000f7c48b84 R09: 00000000f4da8a37
R10: fffff5200035af3f R11: 0000000000086089 R12: ffffc90001ad7ac8
R13: 0000000000000009 R14: 0000000000000009 R15: ffff88823b7e2b60
FS: 00007fb23c47f8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb23997e028 CR3: 000000001fdb6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
kasan_save_stack+0x38/0x50 mm/kasan/common.c:40
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x85/0xb0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc mm/slab.c:3323 [inline]
kmem_cache_alloc+0x265/0x560 mm/slab.c:3507
getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
getname_flags include/linux/audit.h:323 [inline]
getname+0x8e/0xd0 fs/namei.c:217
do_sys_openat2+0xf5/0x4d0 fs/open.c:1206
do_sys_open fs/open.c:1228 [inline]
__do_sys_open fs/open.c:1236 [inline]
__se_sys_open fs/open.c:1232 [inline]
__x64_sys_open+0x119/0x1c0 fs/open.c:1232
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb23ba0e840
Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24
RSP: 002b:00007ffdc58f1b18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffdc58f1e20 RCX: 00007fb23ba0e840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 00005649bf6e22f0
RBP: 000000000000000d R08: 000000000000c0c1 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00005649bf6d7060 R14: 00007ffdc58f1de0 R15: 00005649bf6e2110
----------------
Code disassembly (best guess):
0: 83 ff 03 cmp $0x3,%edi
3: 74 6f je 0x74
5: 83 ff 01 cmp $0x1,%edi
8: 74 70 je 0x7a
a: 48 8b 05 ae 4c 62 0c mov 0xc624cae(%rip),%rax # 0xc624cbf
11: 89 da mov %ebx,%edx
13: 81 e2 ff ff 0f 00 and $0xfffff,%edx
19: 4c 8d 3c d0 lea (%rax,%rdx,8),%r15
1d: 49 8b 2f mov (%r15),%rbp
20: 48 85 ed test %rbp,%rbp
23: 75 12 jne 0x37
25: e9 9c 00 00 00 jmpq 0xc6
* 2a: 48 8b 6d 00 mov 0x0(%rbp),%rbp <-- trapping instruction
2e: 48 85 ed test %rbp,%rbp
31: 0f 84 8f 00 00 00 je 0xc6
37: 39 5d 08 cmp %ebx,0x8(%rbp)
3a: 75 ee jne 0x2a
3c: 44 3b 6d 0c cmp 0xc(%rbp),%r13d