INFO: task syz-executor.2:5703 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28856 pid:5703 ppid:5542 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f467bc88e99
RSP: 002b:00007f467ce0f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f467bd9c030 RCX: 00007f467bc88e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007f467bce2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6bf944df R14: 00007f467ce0f300 R15: 0000000000022000
INFO: task syz-executor.5:5704 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28856 pid:5704 ppid:5540 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1b72288e99
RSP: 002b:00007f1b73342168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1b7239bf60 RCX: 00007f1b72288e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007f1b722e2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff9254591f R14: 00007f1b73342300 R15: 0000000000022000
INFO: task syz-executor.3:5708 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28856 pid:5708 ppid:5539 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6fd6488e99
RSP: 002b:00007f6fd74ff168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6fd659c030 RCX: 00007f6fd6488e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007f6fd64e2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff0e15acf R14: 00007f6fd74ff300 R15: 0000000000022000
INFO: task syz-executor.0:5711 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27000 pid:5711 ppid:5541 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f98fac88e99
RSP: 002b:00007f98fbe6c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f98fad9bf60 RCX: 00007f98fac88e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007f98face2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe803fb3ff R14: 00007f98fbe6c300 R15: 0000000000022000
INFO: task syz-executor.1:5715 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29080 pid:5715 ppid:5543 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc594c88e99
RSP: 002b:00007fc595ded168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc594d9bf60 RCX: 00007fc594c88e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007fc594ce2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2c15605f R14: 00007fc595ded300 R15: 0000000000022000
INFO: task syz-executor.4:5720 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28856 pid:5720 ppid:5537 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdb8ec88e99
RSP: 002b:00007fdb8e3fe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdb8ed9c030 RCX: 00007fdb8ec88e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007fdb8ece2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc597ccb3f R14: 00007fdb8e3fe300 R15: 0000000000022000
INFO: task syz-executor.2:5725 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28856 pid:5725 ppid:5542 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f467bc88e99
RSP: 002b:00007f467ce0f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f467bd9c030 RCX: 00007f467bc88e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007f467bce2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6bf944df R14: 00007f467ce0f300 R15: 0000000000022000
INFO: task syz-executor.5:5727 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28600 pid:5727 ppid:5540 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1b72288e99
RSP: 002b:00007f1b73321168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1b7239c030 RCX: 00007f1b72288e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007f1b722e2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff9254591f R14: 00007f1b73321300 R15: 0000000000022000
INFO: task syz-executor.3:5731 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28840 pid:5731 ppid:5539 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6fd6488e99
RSP: 002b:00007f6fd74ff168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6fd659c030 RCX: 00007f6fd6488e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007f6fd64e2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff0e15acf R14: 00007f6fd74ff300 R15: 0000000000022000
INFO: task syz-executor.1:5734 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29064 pid:5734 ppid:5543 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
vt_ioctl+0x9da/0x20c0 drivers/tty/vt/vt_ioctl.c:762
tty_ioctl+0x90a/0xda0 drivers/tty/tty_io.c:2777
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc594c88e99
RSP: 002b:00007fc595ded168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc594d9bf60 RCX: 00007fc594c88e99
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007fc594ce2ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2c15605f R14: 00007fc595ded300 R15: 0000000000022000
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
3 locks held by kworker/u4:0/9:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf25570 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf25d70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8cf253a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by syslogd/4411:
#0: ffff8880b993be98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539
2 locks held by getty/4742:
#0: ffff88814b1a8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
2 locks held by syz-executor.4/5699:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.2/5703:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.5/5704:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.3/5708:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.0/5711:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.1/5715:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.4/5720:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.2/5725:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.5/5727:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.3/5731:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.1/5734:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.4/5737:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.2/5740:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.5/5743:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.3/5746:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.1/5749:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
2 locks held by syz-executor.4/5752:
#0: ffff88801d16e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffff8880124c20b8 (&buf->lock){+.+.}-{3:3}, at: paste_selection+0x168/0x510 drivers/tty/vt/selection.c:391
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4418 Comm: klogd Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:qlist_free_all+0x1a/0x60 mm/kasan/quarantine.c:187
Code: 00 00 89 d8 5b c3 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 54 53 48 8b 1f 48 85 db 74 47 49 89 f7 49 89 fe eb 13 4c 8b 23 <48> 89 df e8 3e 04 00 00 4c 89 e3 4d 85 e4 74 15 4c 89 fe 4d 85 ff
RSP: 0018:ffffc9000313f680 EFLAGS: 00000286
RAX: ffff8880173ab780 RBX: ffff88807683d800 RCX: ffffea0001da0f00
RDX: ffffea0000000000 RSI: ffff8880173ab780 RDI: 0000000000000000
RBP: ffff88802bf04500 R08: ffffffff813db00c R09: 00000000800c0008
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802aa09500
R13: 0000000000000001 R14: ffffc9000313f6a8 R15: 0000000000000000
FS: 00007ff7ac395800(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056006ca9d600 CR3: 000000002cceb000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:769
slab_alloc_node mm/slub.c:3452 [inline]
kmem_cache_alloc_node+0x157/0x350 mm/slub.c:3497
__alloc_skb+0x181/0x420 net/core/skbuff.c:596
alloc_skb include/linux/skbuff.h:1278 [inline]
alloc_skb_with_frags+0xa8/0x750 net/core/skbuff.c:6318
sock_alloc_send_pskb+0x919/0xa50 net/core/sock.c:2734
unix_dgram_sendmsg+0x5b5/0x2050 net/unix/af_unix.c:1944
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg net/socket.c:747 [inline]
__sys_sendto+0x475/0x630 net/socket.c:2142
__do_sys_sendto net/socket.c:2154 [inline]
__se_sys_sendto net/socket.c:2150 [inline]
__x64_sys_sendto+0xde/0xf0 net/socket.c:2150
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff7ac5310ac
Code: 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 19 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 64 c3 0f 1f 00 55 48 83 ec 20 48 89 54 24 10
RSP: 002b:00007ffe9166d738 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff7ac5310ac
RDX: 000000000000004a RSI: 00005631135147a0 RDI: 0000000000000003
RBP: 000056311350f910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000014
R13: 0000000000000001 R14: 00007ff7ac6ac77d R15: 00007ffe9166d848