INFO: task syz-executor.1:4221 blocked for more than 143 seconds.
Not tainted 5.16.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29488 pid: 4221 ppid: 23638 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
io_ring_ctx_wait_and_kill+0x72/0x322 fs/io_uring.c:9523
io_uring_release+0x42/0x46 fs/io_uring.c:9552
__fput+0x286/0x9f0 fs/file_table.c:280
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x27e/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: 0033:0x7fda52e66b32
RSP: 002b:00007fda503bb0f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: 0000000020ffe000 RBX: 0000000000008011 RCX: 00007fda52e66b32
RDX: 0000000000000003 RSI: 0000000000100000 RDI: 0000000020ffe000
RBP: 0000000020ffe000 R08: 0000000000000003 R09: 0000000010000000
R10: 0000000000008011 R11: 0000000000000206 R12: 0000000020000140
R13: 0000000020ffe000 R14: 0000000020000200 R15: 0000000020002000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb81120 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
3 locks held by kworker/u4:5/1076:
1 lock held by systemd-udevd/2974:
1 lock held by in:imklog/6230:
#0: ffff888024e7f630 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
1 lock held by systemd-udevd/30303:
#0: ffff8880b9d39b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
1 lock held by systemd-udevd/30518:
2 locks held by systemd-udevd/31321:
2 locks held by kworker/u4:8/29347:
1 lock held by syz-executor.1/4196:
1 lock held by syz-executor.1/4221:
#0: ffff88801a0fd0a8 (&ctx->uring_lock){+.+.}-{3:3}, at: io_ring_ctx_wait_and_kill+0x72/0x322 fs/io_uring.c:9523
2 locks held by syz-executor.1/4225:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc2-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:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2961 Comm: systemd-journal Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:memset_erms+0x0/0x10 arch/x86/lib/memset_64.S:61
Code: 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 <49> 89 f9 40 88 f0 48 89 d1 f3 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6
RSP: 0018:ffffc90001a97950 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: ffff88815358c000 RCX: 1ffff1102a6b1800
RDX: 0000000000000400 RSI: 0000000000000000 RDI: ffffed102a6b1800
RBP: 0000000000002000 R08: 0000000000000001 R09: ffffea00054d6337
R10: fffff94000a9ac66 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000040cc0 R14: 0000000000000002 R15: 0000000000000001
FS: 00007fd9582268c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd9551e7018 CR3: 0000000076af3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kasan_unpoison mm/kasan/shadow.c:138 [inline]
kasan_unpoison+0x40/0x70 mm/kasan/shadow.c:115
kasan_unpoison_pages include/linux/kasan.h:169 [inline]
post_alloc_hook+0x123/0x230 mm/page_alloc.c:2406
prep_new_page mm/page_alloc.c:2418 [inline]
get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369
__alloc_pages_node include/linux/gfp.h:570 [inline]
kmem_getpages mm/slab.c:1377 [inline]
cache_grow_begin+0x75/0x470 mm/slab.c:2593
fallback_alloc+0x1e4/0x2e0 mm/slab.c:3140
__do_cache_alloc mm/slab.c:3282 [inline]
slab_alloc mm/slab.c:3316 [inline]
kmem_cache_alloc+0x367/0x560 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: 0033:0x7fd9577b5840
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:00007ffdb46d7468 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffdb46d7770 RCX: 00007fd9577b5840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 0000555690e069c0
RBP: 000000000000000d R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000555690dfa060 R14: 00007ffdb46d7730 R15: 0000555690e07f70
----------------
Code disassembly (best guess):
0: 89 f9 mov %edi,%ecx
2: 48 89 d1 mov %rdx,%rcx
5: 83 e2 07 and $0x7,%edx
8: 48 c1 e9 03 shr $0x3,%rcx
c: 40 0f b6 f6 movzbl %sil,%esi
10: 48 b8 01 01 01 01 01 movabs $0x101010101010101,%rax
17: 01 01 01
1a: 48 0f af c6 imul %rsi,%rax
1e: f3 48 ab rep stos %rax,%es:(%rdi)
21: 89 d1 mov %edx,%ecx
23: f3 aa rep stos %al,%es:(%rdi)
25: 4c 89 c8 mov %r9,%rax
28: c3 retq
29: 90 nop
* 2a: 49 89 f9 mov %rdi,%r9 <-- trapping instruction
2d: 40 88 f0 mov %sil,%al
30: 48 89 d1 mov %rdx,%rcx
33: f3 aa rep stos %al,%es:(%rdi)
35: 4c 89 c8 mov %r9,%rax
38: c3 retq
39: 90 nop
3a: 49 89 fa mov %rdi,%r10
3d: 40 rex
3e: 0f .byte 0xf
3f: b6 .byte 0xb6