INFO: task syz-executor.4:5743 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27008 pid:5743 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: 0033:0x4665e9
RSP: 002b:00007ff84cc48188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffc7340a1bf R14: 00007ff84cc48300 R15: 0000000000022000
INFO: task syz-executor.1:5772 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28856 pid:5772 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: 0033:0x4665e9
RSP: 002b:00007f182f1f9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffc320c70ef R14: 00007f182f1f9300 R15: 0000000000022000
INFO: task syz-executor.0:5757 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27000 pid:5757 ppid:5584 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: 0033:0x4665e9
RSP: 002b:00007f4a18890188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffce055449f R14: 00007f4a18890300 R15: 0000000000022000
INFO: task syz-executor.2:5768 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27560 pid:5768 ppid:5538 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: 0033:0x4665e9
RSP: 002b:00007f1dfa9a9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffca8499a4f R14: 00007f1dfa9a9300 R15: 0000000000022000
INFO: task syz-executor.5:5778 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27008 pid:5778 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: 0033:0x4665e9
RSP: 002b:00007f0a14b47188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffc197ee10f R14: 00007f0a14b47300 R15: 0000000000022000
INFO: task syz-executor.0:5783 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27008 pid:5783 ppid:5584 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: 0033:0x4665e9
RSP: 002b:00007f4a18890188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffce055449f R14: 00007f4a18890300 R15: 0000000000022000
INFO: task syz-executor.2:5784 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27560 pid:5784 ppid:5538 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: 0033:0x4665e9
RSP: 002b:00007f1dfa9a9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffca8499a4f R14: 00007f1dfa9a9300 R15: 0000000000022000
INFO: task syz-executor.3:5791 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27008 pid:5791 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: 0033:0x4665e9
RSP: 002b:00007f30c22c3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffe24b3a17f R14: 00007f30c22c3300 R15: 0000000000022000
INFO: task syz-executor.4:5795 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26936 pid:5795 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: 0033:0x4665e9
RSP: 002b:00007ff84cc48188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffc7340a1bf R14: 00007ff84cc48300 R15: 0000000000022000
INFO: task syz-executor.2:5800 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27000 pid:5800 ppid:5538 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: 0033:0x4665e9
RSP: 002b:00007f1dfa9a9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000200000c0 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffca8499a4f R14: 00007f1dfa9a9300 R15: 0000000000022000
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
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/27:
#0: ffffffff8cf253a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:3/46:
#0: ffff8880b993be98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539
#1: ffffc90000b77d20 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by getty/4741:
#0: ffff8880283f6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
2 locks held by syz-executor.4/5743:
#0: ffff88807c8d7098 (&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.1/5772:
#0: ffff88807c8d7098 (&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.5/5752:
#0: ffff88807c8d7098 (&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.0/5757:
#0: ffff88807c8d7098 (&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.2/5768:
#0: ffff88807c8d7098 (&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.5/5778:
#0: ffff88807c8d7098 (&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.0/5783:
#0: ffff88807c8d7098 (&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.2/5784:
#0: ffff88807c8d7098 (&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.3/5791:
#0: ffff88807c8d7098 (&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.4/5795:
#0: ffff88807c8d7098 (&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.2/5800:
#0: ffff88807c8d7098 (&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.0/5805:
#0: ffff88807c8d7098 (&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.5/5809:
#0: ffff88807c8d7098 (&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.4/5819:
#0: ffff88807c8d7098 (&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 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4418 Comm: klogd Not tainted 6.3.0-rc7-syzkaller-00180-gc337b23f32c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0033:0x7f8caccdb96c
Code: 83 ee 0c 0f b6 06 45 31 d2 84 c0 74 4c 44 89 74 24 44 4c 89 d3 4c 89 dd 4c 89 6c 24 10 3c 25 0f 84 81 00 00 00 48 8b 54 24 08 <48> 29 da 48 83 fa 01 76 3b 48 85 ed 74 07 88 45 00 48 83 c5 01 48
RSP: 002b:00007fffc69018a0 EFLAGS: 00000293
RAX: 0000000000000020 RBX: 0000000000000006 RCX: 0000000000003132
RDX: 0000000000001ffc RSI: 00007f8cacd9f242 RDI: 000055c36bf2a778
RBP: 000055c36bf2a77a R08: 00007fffc6901914 R09: 0000000000000002
R10: 0000000000000000 R11: 000055c36bf2a774 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f8cacd9f241 R15: 000000000000005f
FS: 00007f8cacb7b800 GS: 0000000000000000