INFO: task syz-executor.2:11088 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:27984 pid:11088 ppid: 6501 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: 0033:0x7fac71442ae9
RSP: 002b:00007fac6e9b8218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fac71555f68 RCX: 00007fac71442ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fac71555f68
RBP: 00007fac71555f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac71555f6c
R13: 00007ffc1dd4b31f R14: 00007fac6e9b8300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b980de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
6 locks held by kworker/u4:2/44:
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90001157db0 ((kfence_timer).work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffffffff8b82c470 (cpu_hotplug_lock){++++}-{0:0}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
#3: ffffffff90541f70 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:661
#4: ffffffff8b84a968 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0xe/0x20 arch/x86/kernel/jump_label.c:145
#5: ffff888140ba8078 (ptlock_ptr(page)#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
#5: ffff888140ba8078 (ptlock_ptr(page)#2){+.+.}-{2:2}, at: __get_locked_pte+0x2b6/0x4d0 mm/memory.c:1736
2 locks held by kworker/u4:4/928:
1 lock held by in:imklog/6166:
=============================================
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: 2918 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:lockdep_recursion_finish kernel/locking/lockdep.c:438 [inline]
RIP: 0010:lock_release+0x3c8/0x720 kernel/locking/lockdep.c:5647
Code: 2b 44 24 40 45 39 87 58 0a 00 00 0f 85 29 02 00 00 48 c7 c7 40 f5 8b 89 e8 85 f2 dc 07 b8 ff ff ff ff 65 0f c1 05 58 67 a6 7e <83> f8 01 0f 85 8d 01 00 00 9c 58 f6 c4 02 0f 85 78 01 00 00 48 f7
RSP: 0018:ffffc90000007de8 EFLAGS: 00000057
RAX: 0000000000000001 RBX: cd165870ae833244 RCX: ffffc90000007e38
RDX: 1ffff1100f048d62 RSI: 0000000000010001 RDI: 0000000000000000
RBP: 1ffff92000000fbf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000003 R14: ffff888078246b18 R15: ffff8880782460c0
FS: 00007ffb686fd8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000ee9488 CR3: 0000000023a6c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
timekeeping_get_delta kernel/time/timekeeping.c:252 [inline]
timekeeping_get_ns kernel/time/timekeeping.c:386 [inline]
ktime_get_update_offsets_now+0x15e/0x5c0 kernel/time/timekeeping.c:2300
hrtimer_update_base kernel/time/hrtimer.c:631 [inline]
hrtimer_interrupt+0x142/0x790 kernel/time/hrtimer.c:1793
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:qlink_to_object mm/kasan/quarantine.c:129 [inline]
RIP: 0010:qlink_free mm/kasan/quarantine.c:134 [inline]
RIP: 0010:qlist_free_all+0x7e/0x110 mm/kasan/quarantine.c:165
Code: 58 f6 c4 02 0f 85 a4 00 00 00 48 85 db 74 01 fb 48 85 ed 74 73 48 89 ee 4d 85 e4 4c 89 e7 74 38 48 63 87 80 00 00 00 48 8b 2e <48> 29 c6 9c 5b fa 81 e3 00 02 00 00 74 aa 48 89 74 24 08 48 89 3c
RSP: 0018:ffffc90002947de0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffea0001bfe147
RDX: 0000000000000000 RSI: ffff88807c3a3800 RDI: ffff888010c40600
RBP: ffff8880792081c0 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff81350e1a R11: 000000000000003f R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc90002947e28 R15: ffffea0000000000
kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272
__kasan_slab_alloc+0x92/0xa0 mm/kasan/common.c:444
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+0x25f/0x530 mm/slab.c:3507
getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
getname_flags include/linux/audit.h:323 [inline]
getname fs/namei.c:217 [inline]
__do_sys_mkdir fs/namei.c:3929 [inline]
__se_sys_mkdir fs/namei.c:3927 [inline]
__x64_sys_mkdir+0xda/0x140 fs/namei.c:3927
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: 0033:0x7ffb679b8687
Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffcbcd06dd8 EFLAGS: 00000293 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007ffcbcd09e40 RCX: 00007ffb679b8687
RDX: 0000000000000000 RSI: 00000000000001ed RDI: 000055f0847398c0
RBP: 00007ffcbcd06e10 R08: 000055f0833ec3e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 000055f0847398c0 R15: 00007ffcbcd07450
----------------
Code disassembly (best guess):
0: 2b 44 24 40 sub 0x40(%rsp),%eax
4: 45 39 87 58 0a 00 00 cmp %r8d,0xa58(%r15)
b: 0f 85 29 02 00 00 jne 0x23a
11: 48 c7 c7 40 f5 8b 89 mov $0xffffffff898bf540,%rdi
18: e8 85 f2 dc 07 callq 0x7dcf2a2
1d: b8 ff ff ff ff mov $0xffffffff,%eax
22: 65 0f c1 05 58 67 a6 xadd %eax,%gs:0x7ea66758(%rip) # 0x7ea66782
29: 7e
* 2a: 83 f8 01 cmp $0x1,%eax <-- trapping instruction
2d: 0f 85 8d 01 00 00 jne 0x1c0
33: 9c pushfq
34: 58 pop %rax
35: f6 c4 02 test $0x2,%ah
38: 0f 85 78 01 00 00 jne 0x1b6
3e: 48 rex.W
3f: f7 .byte 0xf7