INFO: task syz-executor.0:4029 blocked for more than 143 seconds.
Not tainted 5.15.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28976 pid: 4029 ppid: 3817 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
__fdget_pos+0x2cb/0x380 fs/file.c:1088
fdget_pos include/linux/file.h:75 [inline]
ksys_lseek fs/read_write.c:307 [inline]
__do_sys_lseek fs/read_write.c:324 [inline]
__se_sys_lseek fs/read_write.c:322 [inline]
__x64_sys_lseek+0x76/0x1e0 fs/read_write.c:322
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5547313ea9
RSP: 002b:00007f55466730c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f5547442050 RCX: 00007f5547313ea9
RDX: 0000000000000001 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f55473604a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f5547442050 R15: 00007ffda1efefd8
INFO: task syz-executor.2:4076 blocked for more than 144 seconds.
Not tainted 5.15.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:29816 pid: 4076 ppid: 3814 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
__fdget_pos+0x2cb/0x380 fs/file.c:1088
fdget_pos include/linux/file.h:75 [inline]
ksys_lseek fs/read_write.c:307 [inline]
__do_sys_lseek fs/read_write.c:324 [inline]
__se_sys_lseek fs/read_write.c:322 [inline]
__x64_sys_lseek+0x76/0x1e0 fs/read_write.c:322
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff35f83aea9
RSP: 002b:00007ff35eb9a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007ff35f969050 RCX: 00007ff35f83aea9
RDX: 0000000000000001 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007ff35f8874a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007ff35f969050 R15: 00007ffde2a27058
INFO: task syz-executor.1:4082 blocked for more than 144 seconds.
Not tainted 5.15.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29656 pid: 4082 ppid: 3824 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
__fdget_pos+0x2cb/0x380 fs/file.c:1088
fdget_pos include/linux/file.h:75 [inline]
ksys_lseek fs/read_write.c:307 [inline]
__do_sys_lseek fs/read_write.c:324 [inline]
__se_sys_lseek fs/read_write.c:322 [inline]
__x64_sys_lseek+0x76/0x1e0 fs/read_write.c:322
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f518d209ea9
RSP: 002b:00007f518c5690c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f518d338050 RCX: 00007f518d209ea9
RDX: 0000000000000001 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f518d2564a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f518d338050 R15: 00007fffd8768a08
INFO: task syz-executor.4:4115 blocked for more than 145 seconds.
Not tainted 5.15.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:29816 pid: 4115 ppid: 3821 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
__fdget_pos+0x2cb/0x380 fs/file.c:1088
fdget_pos include/linux/file.h:75 [inline]
ksys_lseek fs/read_write.c:307 [inline]
__do_sys_lseek fs/read_write.c:324 [inline]
__se_sys_lseek fs/read_write.c:322 [inline]
__x64_sys_lseek+0x76/0x1e0 fs/read_write.c:322
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f05f2d11ea9
RSP: 002b:00007f05f20710c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f05f2e40050 RCX: 00007f05f2d11ea9
RDX: 0000000000000001 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f05f2d5e4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f05f2e40050 R15: 00007ffdb9472668
INFO: task syz-executor.3:4121 blocked for more than 146 seconds.
Not tainted 5.15.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29816 pid: 4121 ppid: 3813 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
__fdget_pos+0x2cb/0x380 fs/file.c:1088
fdget_pos include/linux/file.h:75 [inline]
ksys_lseek fs/read_write.c:307 [inline]
__do_sys_lseek fs/read_write.c:324 [inline]
__se_sys_lseek fs/read_write.c:322 [inline]
__x64_sys_lseek+0x76/0x1e0 fs/read_write.c:322
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fe20e9d2ea9
RSP: 002b:00007fe20dd320c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007fe20eb01050 RCX: 00007fe20e9d2ea9
RDX: 0000000000000001 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007fe20ea1f4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe20eb01050 R15: 00007ffdd3bf7538
Showing all locks held in the system:
3 locks held by kworker/1:1/23:
#0: ffff8880b9b3a358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
#1: ffff8880b9b27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53d/0x810 kernel/sched/psi.c:891
#2: ffffffff8c91fb80 (rcu_read_lock_bh){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
1 lock held by khungtaskd/27:
#0: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/155:
1 lock held by udevd/2962:
2 locks held by getty/3260:
#0: ffff8880233a1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90002bab2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by syz-executor.0/4020:
1 lock held by syz-executor.0/4029:
#0: ffff88802372e5f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2cb/0x380 fs/file.c:1088
3 locks held by syz-executor.2/4065:
1 lock held by syz-executor.2/4076:
#0: ffff8880754a5270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2cb/0x380 fs/file.c:1088
3 locks held by syz-executor.1/4070:
1 lock held by syz-executor.1/4082:
#0: ffff88801e876ff0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2cb/0x380 fs/file.c:1088
3 locks held by syz-executor.4/4109:
1 lock held by syz-executor.4/4115:
#0: ffff8880647c14f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2cb/0x380 fs/file.c:1088
3 locks held by syz-executor.3/4116:
1 lock held by syz-executor.3/4121:
#0: ffff88801a2a0af0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2cb/0x380 fs/file.c:1088
1 lock held by syz-executor.4/4287:
3 locks held by syz-executor.3/4290:
1 lock held by syz-executor.2/11496:
#0: ffff8880b9a3a358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4020 Comm: syz-executor.0 Not tainted 5.15.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:__sanitizer_cov_trace_switch+0x50/0xe0 kernel/kcov.c:319
Code: 83 9e 00 00 00 4c 8b 16 4d 85 d2 0f 84 92 00 00 00 4c 8b 04 c5 c0 e9 8e 8a 4c 8b 4c 24 20 65 4c 8b 1d 04 0d 82 7e 31 d2 eb 08 <48> ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 f4 0c 82 7e a9 00
RSP: 0018:ffffc90002e277b8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000008b
RDX: 0000000000000001 RSI: ffffffff8cad41b0 RDI: 0000000000000000
RBP: ffffc90002e27d68 R08: 0000000000000001 R09: ffffffff823c0953
R10: 0000000000000002 R11: ffff8880201c8000 R12: ffff8880656281e0
R13: 000000000000000f R14: 0000000000000085 R15: 0000000000000010
FS: 00007f55466946c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f02af24e000 CR3: 000000006469e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
exfat_get_entry_type fs/exfat/dir.c:344 [inline]
exfat_readdir fs/exfat/dir.c:126 [inline]
exfat_iterate+0xc43/0x34a0 fs/exfat/dir.c:258
iterate_dir+0x224/0x570
__do_sys_getdents64 fs/readdir.c:369 [inline]
__se_sys_getdents64+0x209/0x4f0 fs/readdir.c:354
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5547313ea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f55466940c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 00007f5547441f80 RCX: 00007f5547313ea9
RDX: 00000000000000ca RSI: 00000000200001c0 RDI: 0000000000000005
RBP: 00007f55473604a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5547441f80 R15: 00007ffda1efefd8