INFO: task syz.7.5871:18162 blocked for more than 122 seconds.
Not tainted 6.12.30-syzkaller-g15178d63ac5e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.5871 state:D stack:0 pid:18162 tgid:18162 ppid:17932 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x132b/0x1e00 kernel/sched/core.c:7789
__schedule_loop kernel/sched/core.c:7870 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7885
request_wait_answer fs/fuse/dev.c:476 [inline]
__fuse_request_send fs/fuse/dev.c:491 [inline]
__fuse_simple_request+0xdb1/0x1980 fs/fuse/dev.c:586
fuse_simple_request fs/fuse/fuse_i.h:1248 [inline]
fuse_flush+0x909/0x1d50 fs/fuse/file.c:582
filp_flush fs/open.c:1550 [inline]
filp_close+0xbd/0x160 fs/open.c:1563
__range_close fs/file.c:712 [inline]
__close_range+0x50e/0x6c0 fs/file.c:769
__do_sys_close_range fs/open.c:1616 [inline]
__se_sys_close_range fs/open.c:1613 [inline]
__x64_sys_close_range+0x7e/0x90 fs/open.c:1613
x64_sys_call+0x1686/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:437
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f4ab5d8e9a9
RSP: 002b:00007ffd0048efb8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 000000000006690a RCX: 00007f4ab5d8e9a9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f4ab5fb7ba0 R08: 0000000000000001 R09: 000000110048f2af
R10: 00007f4ab5c00000 R11: 0000000000000246 R12: 00007f4ab5fb5fac
R13: 00007f4ab5fb5fa0 R14: ffffffffffffffff R15: 00007ffd0048f0d0
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.12.30-syzkaller-g15178d63ac5e #0 2e49b5e8bba3abd4e44f2eeb6ccfddb4f386a3cf
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
nmi_cpu_backtrace+0x2bf/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
watchdog+0xd8f/0xed0 kernel/hung_task.c:423
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 25014 Comm: syz.1.8131 Not tainted 6.12.30-syzkaller-g15178d63ac5e #0 2e49b5e8bba3abd4e44f2eeb6ccfddb4f386a3cf
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:check_region_inline mm/kasan/generic.c:171 [inline]
RIP: 0010:kasan_check_range+0x17/0x2a0 mm/kasan/generic.c:189
Code: cc cc cc b8 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 b0 01 48 85 f6 0f 84 c4 01 00 00 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 4c 8d 04 37 49 39 f8 0f 82 68 02 00 00 49 89 f9 49
RSP: 0018:ffffc9000429f910 EFLAGS: 00000002
RAX: f3f3f304f1f1f101 RBX: ffff8881f6e4f7c0 RCX: ffffffff8587c9ec
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc9000429f960
RBP: ffffc9000429f920 R08: ffff8881f6e4f7c3 R09: 1ffff1103edc9ef8
R10: dffffc0000000000 R11: ffffed103edc9ef9 R12: 1ffff92000853f28
R13: dffffc0000000000 R14: ffffc9000429f960 R15: dffffc0000000000
FS: 0000555588938500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7b156ef98 CR3: 0000000135b5c000 CR4: 00000000003526b0
DR0: 000000000000ffff DR1: 0000000000000001 DR2: 0000000000000013
DR3: 0000000000000008 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__kasan_check_write+0x18/0x20 mm/kasan/shadow.c:37
instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1301 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
do_raw_spin_lock include/linux/spinlock.h:187 [inline]
__raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline]
_raw_spin_lock+0x8c/0x120 kernel/locking/spinlock.c:154
raw_spin_rq_lock_nested kernel/sched/core.c:643 [inline]
raw_spin_rq_lock kernel/sched/sched.h:1571 [inline]
rq_lock kernel/sched/sched.h:1875 [inline]
__schedule+0x1c2/0x1e00 kernel/sched/core.c:7676
__schedule_loop kernel/sched/core.c:7870 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7885
do_nanosleep+0x164/0x590 kernel/time/hrtimer.c:2099
hrtimer_nanosleep+0x13e/0x320 kernel/time/hrtimer.c:2147
common_nsleep+0x93/0xb0 kernel/time/posix-timers.c:1365
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
__se_sys_clock_nanosleep+0x300/0x390 kernel/time/posix-timers.c:1388
__x64_sys_clock_nanosleep+0x9f/0xc0 kernel/time/posix-timers.c:1388
x64_sys_call+0x2554/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:231
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f658a5c1265
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 54 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f 55 ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007ffd8a16a140 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007f658a7b5fa0 RCX: 00007f658a5c1265
RDX: 00007ffd8a16a180 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f658a7b7ba0 R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000088d9b
R13: 00007f658a7b6080 R14: ffffffffffffffff R15: 00007ffd8a16a2c0