INFO: task syz.2.169:6508 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.169 state:D stack:24128 pid:6508 tgid:6508 ppid:5829 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
pipe_release+0x48/0x320 fs/pipe.c:727
__fput+0x23c/0xa50 fs/file_table.c:450
task_work_run+0x24f/0x310 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98bb385d29
RSP: 002b:00007ffdfd562758 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f98bb577ba0 RCX: 00007f98bb385d29
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f98bb577ba0 R08: 00000000000000ec R09: 00007ffdfd562a4f
R10: 00007f98bb577ac0 R11: 0000000000000246 R12: 0000000000017b19
R13: 00007f98bb576240 R14: 0000000000000032 R15: ffffffffffffffff
INFO: task syz.2.169:6512 blocked for more than 146 seconds.
Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.169 state:D stack:27328 pid:6512 tgid:6508 ppid:5829 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
vmsplice_to_pipe fs/splice.c:1555 [inline]
__do_sys_vmsplice fs/splice.c:1613 [inline]
__se_sys_vmsplice+0x4be/0x1490 fs/splice.c:1583
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98bb385d29
RSP: 002b:00007f98bc1c9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000116
RAX: ffffffffffffffda RBX: 00007f98bb576080 RCX: 00007f98bb385d29
RDX: 0000000000000001 RSI: 00000000200005c0 RDI: 0000000000000006
RBP: 00007f98bb401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f98bb576080 R15: 00007ffdfd5625f8
INFO: task syz.2.169:6513 blocked for more than 147 seconds.
Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.169 state:D stack:27328 pid:6513 tgid:6508 ppid:5829 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
pipe_ioctl+0x9d/0x480 fs/pipe.c:622
vfs_ioctl fs/ioctl.c:51 [inline]
do_vfs_ioctl+0xec7/0x2e40 fs/ioctl.c:860
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl+0x80/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98bb385d29
RSP: 002b:00007f98bc1a8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f98bb576160 RCX: 00007f98bb385d29
RDX: 0000000000000000 RSI: 000000000000541b RDI: 0000000000000006
RBP: 00007f98bb401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f98bb576160 R15: 00007ffdfd5625f8
Showing all locks held in the system:
2 locks held by kworker/u8:1/12:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
1 lock held by udevd/5206:
1 lock held by dhcpcd/5500:
2 locks held by getty/5594:
#0: ffff8880314c50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900033332f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by dhcpcd/5649:
1 lock held by syz-executor/5828:
1 lock held by syz-executor/5829:
2 locks held by syz-executor/5835:
1 lock held by syz.2.169/6508:
#0: ffff88807c3a7868 (&pipe->mutex){+.+.}-{4:4}, at: pipe_release+0x48/0x320 fs/pipe.c:727
1 lock held by syz.2.169/6509:
#0: ffff88807c3a7868 (&pipe->mutex){+.+.}-{4:4}, at: splice_file_to_pipe+0x2e/0x500 fs/splice.c:1292
1 lock held by syz.2.169/6512:
#0: ffff88807c3a7868 (&pipe->mutex){+.+.}-{4:4}, at: vmsplice_to_pipe fs/splice.c:1555 [inline]
#0: ffff88807c3a7868 (&pipe->mutex){+.+.}-{4:4}, at: __do_sys_vmsplice fs/splice.c:1613 [inline]
#0: ffff88807c3a7868 (&pipe->mutex){+.+.}-{4:4}, at: __se_sys_vmsplice+0x4be/0x1490 fs/splice.c:1583
1 lock held by syz.2.169/6513:
#0: ffff88807c3a7868 (&pipe->mutex){+.+.}-{4:4}, at: pipe_ioctl+0x9d/0x480 fs/pipe.c:622
1 lock held by syz.1.182/6544:
1 lock held by syz.1.182/6546:
1 lock held by syz.1.182/6549:
1 lock held by udevd/6548:
1 lock held by udevd/6557:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 101 PID: 5642 Comm: dhcpcd Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__seccomp_filter+0x8/0x1fe0 kernel/seccomp.c:1218
Code: f5 65 00 e9 2a ff ff ff e8 05 95 ff ff 90 0f 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 <41> 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 60 02 00 00 89 54
RSP: 0018:ffffc900035dfed0 EFLAGS: 00000282
RAX: ffffffff819fdca5 RBX: ffffc900035dff10 RCX: ffff888024f9da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000f
RBP: ffffc900035dfed0 R08: 0000000000000005 R09: ffffffff819fdc90
R10: 0000000000000003 R11: ffff888024f9da00 R12: ffff888024f9da00
R13: 0000000000000000 R14: ffffc900035dff58 R15: 0000000000000003
FS: 00007f3ce6d46740(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005585fdec4600 CR3: 0000000032e8a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
syscall_trace_enter+0xa8/0x150 kernel/entry/common.c:52
syscall_enter_from_user_mode_work include/linux/entry-common.h:169 [inline]
syscall_enter_from_user_mode include/linux/entry-common.h:199 [inline]
do_syscall_64+0xcc/0x230 arch/x86/entry/common.c:79
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ce6d80ad9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <48> 81 ec b8 00 00 00 41 89 f9 48 89 f0 49 89 d0 48 85 f6 0f 84 be
RSP: 002b:00007ffe47b80880 EFLAGS: 00000293 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 000055863b6deee0 RCX: 00007f3ce6d80ad9
RDX: 00005585fdec4610 RSI: 00007ffe47b809b0 RDI: 0000000000000011
RBP: 00007ffe47b81180 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffe47b81180 R11: 0000000000000293 R12: 0000000000000000
R13: 00005585fdec4610 R14: 00000000ffffffff R15: 0000000000000000