INFO: task klogd:4513 blocked for more than 143 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:klogd state:D stack:22712 pid:4513 tgid:4513 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2199
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f1c8bfb49b5
RSP: 002b:00007ffcdb44afd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1c8bfb49b5
RDX: 000000000000006e RSI: 0000557d357989e0 RDI: 0000000000000003
RBP: 0000557d3578e910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f1c8c142212 R14: 00007ffcdb44b0d8 R15: 0000000000000000
INFO: task udevd:7473 blocked for more than 144 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25328 pid:7473 tgid:7473 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:7476 blocked for more than 144 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:22712 pid:7476 tgid:7476 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:7980 blocked for more than 145 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25616 pid:7980 tgid:7980 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:8660 blocked for more than 145 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24216 pid:8660 tgid:8660 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:10197 blocked for more than 146 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24216 pid:10197 tgid:10197 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:10564 blocked for more than 147 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25648 pid:10564 tgid:10564 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:10797 blocked for more than 148 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25144 pid:10797 tgid:10797 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:4128 blocked for more than 148 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25560 pid:4128 tgid:4128 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
INFO: task udevd:8000 blocked for more than 149 seconds.
Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:26968 pid:8000 tgid:8000 ppid:4524 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wait_for_unix_gc+0x150/0x210 net/unix/garbage.c:201
unix_dgram_sendmsg+0x11a/0x2200 net/unix/af_unix.c:1924
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa81/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fa4ba916bf2
RSP: 002b:00007fff5b7ca0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4ba916bf2
RDX: 0000000000000000 RSI: 00007fff5b7ca11f RDI: 000000000000000a
RBP: 00007fff5b7ca11f R08: 0000000000000001 R09: 5de703fe25f3ed73
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a
R13: 00007fa4bacbdae0 R14: 0000000000000000 R15: 00005634ca898910
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4827:
#0: ffff88802ae460a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by kworker/0:4/30420:
#0: ffff888014c8e538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#0: ffff888014c8e538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc90009677d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#1: ffffc90009677d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
3 locks held by kworker/1:10/7890:
#0: ffff888014c8c938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#0: ffff888014c8c938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc9000d467d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#1: ffffc9000d467d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#2: ffffffff8f374f48 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281
3 locks held by kworker/1:13/7893:
#0: ffff88801baca538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#0: ffff88801baca538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc9000d4afd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#1: ffffc9000d4afd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#2: ffff888023f8b190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff888023f8b190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x50f0 drivers/usb/core/hub.c:5811
3 locks held by kworker/1:14/7894:
#0: ffff88801baca538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#0: ffff88801baca538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc9000d4bfd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#1: ffffc9000d4bfd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#2: ffff8880240db190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff8880240db190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x50f0 drivers/usb/core/hub.c:5811
5 locks held by kworker/1:17/7897:
1 lock held by syz-executor.0/7877:
3 locks held by kworker/u4:0/8609:
2 locks held by syz-executor.2/12407:
#0: ffffffff8f374f48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f374f48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6612
#1: ffffffff8e136478 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#1: ffffffff8e136478 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:995
4 locks held by syz-executor.4/12563:
#0: ffff88802519b158 (&mousedev->mutex/1){+.+.}-{3:3}, at: mixdev_open_devices+0x2b/0x2f0 drivers/input/mousedev.c:458
#1: ffff88823bc2e958 (&mousedev->mutex#2){+.+.}-{3:3}, at: mousedev_open_device drivers/input/mousedev.c:423 [inline]
#1: ffff88823bc2e958 (&mousedev->mutex#2){+.+.}-{3:3}, at: mixdev_open_devices+0xe2/0x2f0 drivers/input/mousedev.c:467
#2: ffff888036d892c0 (&dev->mutex#2){+.+.}-{3:3}, at: input_open_device+0x52/0x2e0 drivers/input/input.c:634
#3: ffffffff8e136478 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#3: ffffffff8e136478 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:995
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7877 Comm: syz-executor.0 Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:unix_gc+0xfeb/0x1350
Code: ec f7 e9 13 ff ff ff e8 a3 58 8a f7 eb 05 e8 9c 58 8a f7 48 8b 1d 75 7c 3e 05 49 c7 c7 20 90 47 8f 4c 39 fb 0f 84 aa 00 00 00 <48> 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74
RSP: 0018:ffffc9000d357b80 EFLAGS: 00000293
RAX: ffffffff8a091456 RBX: ffff888068d05640 RCX: ffff888095dbd940
RDX: 0000000000000000 RSI: ffffffff8baab5e0 RDI: ffffffff8bfe6820
RBP: ffffc9000d357cf0 R08: ffffffff92c8a4bf R09: 1ffffffff2591497
R10: dffffc0000000000 R11: fffffbfff2591498 R12: ffff888068d05640
R13: 1ffff1100d1a0aee R14: 0000000000000000 R15: ffffffff8f479020
FS: 0000555556deb480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005634cb667178 CR3: 000000002a57a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unix_release_sock+0xadd/0xd20 net/unix/af_unix.c:683
unix_release+0x91/0xc0 net/unix/af_unix.c:1064
__sock_release net/socket.c:659 [inline]
sock_close+0xbc/0x240 net/socket.c:1421
__fput+0x429/0x8a0 fs/file_table.c:376
__do_sys_close fs/open.c:1554 [inline]
__se_sys_close fs/open.c:1539 [inline]
__x64_sys_close+0x7e/0x110 fs/open.c:1539
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f84a8e7cc9a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007f84a90cfb10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f84a8e7cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b32720000 R09: 0000000000000076
R10: 000000008135d7d7 R11: 0000000000000293 R12: 00007f84a8a00438
R13: ffffffffffffffff R14: 00007f84a8a00000 R15: 0000000000251386