INFO: task klogd:4499 blocked for more than 143 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:klogd state:D stack:25744 pid:4499 tgid:4499 ppid:1 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x47f/0x4e0 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f47fd8b69b5 RSP: 002b:00007fff73bce838 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f47fd8b69b5 RDX: 000000000000005e RSI: 0000555a888fe230 RDI: 0000000000000003 RBP: 0000555a888f52c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 R13: 00007f47fda44212 R14: 00007fff73bce938 R15: 0000000000000000 INFO: task dhcpcd:4723 blocked for more than 143 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:26448 pid:4723 tgid:4723 ppid:1 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7fef48aaebf2 RSP: 002b:00007ffec0d63b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000560ea03efe60 RCX: 00007fef48aaebf2 RDX: 0000000000000047 RSI: 00007ffec0d63bb0 RDI: 0000000000000005 RBP: 00007ffec0d63bb0 R08: 0000000000000008 R09: 0000000000000036 R10: 0000000000000000 R11: 0000000000000246 R12: 0000560e9f1aeefc R13: 00007ffec0d63fe0 R14: 0000560ea04425c0 R15: 0000000000000001 INFO: task udevd:8410 blocked for more than 144 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:26432 pid:8410 tgid:8410 ppid:4510 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f7c1c516bf2 RSP: 002b:00007fff377026a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c1c516bf2 RDX: 0000000000000000 RSI: 00007fff377026ff RDI: 000000000000000a RBP: 00007fff377026ff R08: 0000000000000001 R09: 0000000000000000 R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a R13: 00007f7c1c8daae0 R14: 0000000000000000 R15: 000055f6de5912c0 INFO: task udevd:8437 blocked for more than 145 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:26016 pid:8437 tgid:8437 ppid:4510 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f7c1c516bf2 RSP: 002b:00007fff377026a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c1c516bf2 RDX: 0000000000000000 RSI: 00007fff377026ff RDI: 000000000000000a RBP: 00007fff377026ff R08: 0000000000000001 R09: 0000000000000000 R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a R13: 00007f7c1c8daae0 R14: 0000000000000000 R15: 000055f6de5912c0 INFO: task udevd:8438 blocked for more than 145 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:26816 pid:8438 tgid:8438 ppid:4510 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f7c1c516bf2 RSP: 002b:00007fff377026a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c1c516bf2 RDX: 0000000000000000 RSI: 00007fff377026ff RDI: 000000000000000a RBP: 00007fff377026ff R08: 0000000000000001 R09: 84e6230e5ed10be7 R10: 1999999999999999 R11: 0000000000000246 R12: 000000000000000a R13: 00007f7c1c8daae0 R14: 0000000000000000 R15: 000055f6de5912c0 INFO: task udevd:8447 blocked for more than 146 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:25440 pid:8447 tgid:8447 ppid:4510 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f7c1c516bf2 RSP: 002b:00007fff377026a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c1c516bf2 RDX: 0000000000000000 RSI: 00007fff377026ff RDI: 000000000000000a RBP: 00007fff377026ff R08: 0000000000000001 R09: 0000000000000000 R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a R13: 00007f7c1c8daae0 R14: 0000000000000000 R15: 000055f6de5912c0 INFO: task udevd:8853 blocked for more than 146 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:26320 pid:8853 tgid:8853 ppid:4510 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f7c1c516bf2 RSP: 002b:00007fff377026a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c1c516bf2 RDX: 0000000000000000 RSI: 00007fff377026ff RDI: 000000000000000a RBP: 00007fff377026ff R08: 0000000000000001 R09: 0000000000000000 R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a R13: 00007f7c1c8daae0 R14: 0000000000000000 R15: 000055f6de5912c0 INFO: task udevd:10800 blocked for more than 147 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:27728 pid:10800 tgid:10800 ppid:4510 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f7c1c516bf2 RSP: 002b:00007fff377026a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c1c516bf2 RDX: 0000000000000000 RSI: 00007fff377026ff RDI: 000000000000000a RBP: 00007fff377026ff R08: 0000000000000001 R09: 0000000000000000 R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000a R13: 00007f7c1c8daae0 R14: 0000000000000000 R15: 000055f6de5912c0 INFO: task syz-executor.3:11360 blocked for more than 147 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29136 pid:11360 tgid:11359 ppid:9808 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_stream_sendmsg+0xf2/0x10b0 net/unix/af_unix.c:2200 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0xab5/0xc90 net/socket.c:2584 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f0d3b07dda9 RSP: 002b:00007f0d3bdd10c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0d3b1abf80 RCX: 00007f0d3b07dda9 RDX: 0000000020000001 RSI: 0000000020000800 RDI: 0000000000000004 RBP: 00007f0d3b0ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f0d3b1abf80 R15: 00007ffd44fabb58 INFO: task udevd:11429 blocked for more than 148 seconds. Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:27904 pid:11429 tgid:11429 ppid:4510 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c60 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x280 kernel/sched/core.c:6817 wait_for_unix_gc+0x192/0x200 net/unix/garbage.c:201 unix_dgram_sendmsg+0x10e/0x1d10 net/unix/af_unix.c:1924 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x50a/0x5c0 net/socket.c:1160 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1110 fs/read_write.c:590 ksys_write+0x1f8/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f7c1c516bf2 RSP: 002b:00007fff377026a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c1c516bf2 RDX: 0000000000000000 RSI: 00007fff377026ff RDI: 000000000000000a RBP: 00007fff377026ff R08: 0000000000000001 R09: 84e6230e5ed10be7 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a R13: 00007f7c1c8daae0 R14: 0000000000000000 R15: 000055f6de5912c0 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: ffffffff8d7ad160 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #0: ffffffff8d7ad160 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #0: ffffffff8d7ad160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614 2 locks held by kswapd0/81: 2 locks held by getty/4817: #0: ffff8880297e00a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900015c02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfca/0x1490 drivers/tty/n_tty.c:2201 5 locks held by kworker/u4:16/6443: 3 locks held by kworker/u4:22/6485: #0: ffff8880b953cc98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559 #1: ffffc9000a46fd80 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15e0 kernel/workqueue.c:2609 #2: ffff8880b953cc98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559 2 locks held by kworker/0:9/7765: #0: ffff888014c8e938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x789/0x15e0 kernel/workqueue.c:2608 #1: ffffc90005de7d80 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15e0 kernel/workqueue.c:2609 3 locks held by kworker/1:8/8335: #0: ffff88801c695d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x789/0x15e0 kernel/workqueue.c:2608 #1: ffffc90004887d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15e0 kernel/workqueue.c:2609 #2: ffff888023e58190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline] #2: ffff888023e58190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4e20 drivers/usb/core/hub.c:5811 1 lock held by syz-executor.4/11348: 2 locks held by syz-executor.3/11977: #0: ffffffff8f2e3d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2e3d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 #1: ffffffff8d7b89b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline] #1: ffffffff8d7b89b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x800 kernel/rcu/tree_exp.h:995 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #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+0xd9/0x1b0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 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+0xf87/0x1210 kernel/hung_task.c:379 kthread+0x2c6/0x3b0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 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: 8335 Comm: kworker/1:8 Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x925/0x1310 drivers/net/wireless/virtual/mac80211_hwsim.c:1816 Code: 1e 10 fb 41 83 fd 01 0f 84 d6 fe ff ff 41 83 fd 03 0f 84 88 fe ff ff e8 d9 22 10 fb 48 8b 44 24 08 80 38 00 0f 85 b6 07 00 00 <49> 8d bf 10 3e 00 00 4c 8b ad 10 3e 00 00 48 89 f8 48 c1 e8 03 80 RSP: 0018:ffffc900001f0b58 EFLAGS: 00000246 RAX: ffffed10154bcdca RBX: dffffc0000000000 RCX: ffffffff867b228e RDX: ffff888092c8bb80 RSI: ffffffff867b22a7 RDI: 0000000000000005 RBP: ffff8880aa5e3040 R08: 0000000000000005 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000006 R12: ffff8880aa5e32d8 R13: 0000000000000000 R14: 0000000000000022 R15: ffff88802c84b040 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3f620e7440 CR3: 00000000b0804000 CR4: 00000000003506f0 Call Trace: mac80211_hwsim_tx_frame+0x1eb/0x2a0 drivers/net/wireless/virtual/mac80211_hwsim.c:2186 mac80211_hwsim_beacon_tx+0x41b/0x740 drivers/net/wireless/virtual/mac80211_hwsim.c:2279 __iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:767 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:803 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2305 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x203/0xc30 kernel/time/hrtimer.c:1752 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769 __do_softirq+0x21c/0x8e7 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:console_flush_all+0xa1a/0xd70 kernel/printk/printk.c:2973 Code: e8 5b c0 24 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 39 ac 1d 00 48 85 db 0f 85 7c 01 00 00 e8 1b b1 1d 00 fb 48 8b 04 24 <4c> 89 fa 83 e2 07 0f b6 00 38 d0 7f 08 84 c0 0f 85 55 02 00 00 41 RSP: 0018:ffffc90004887538 EFLAGS: 00000287 RAX: fffff52000910ece RBX: 0000000000000000 RCX: ffffc90011def000 RDX: 0000000000040000 RSI: ffffffff816d9465 RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000006 R12: 0000000000000000 R13: ffffffff8e38a1f8 R14: ffffffff8e38a1a0 R15: ffffc90004887670 console_unlock+0x10c/0x260 kernel/printk/printk.c:3036 vprintk_emit+0x183/0x5f0 kernel/printk/printk.c:2303 dev_vprintk_emit drivers/base/core.c:4850 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4861 __dev_printk+0xf5/0x270 drivers/base/core.c:4873 _dev_info+0xe5/0x120 drivers/base/core.c:4919 announce_device drivers/usb/core/hub.c:2327 [inline] usb_new_device+0x85f/0x1a10 drivers/usb/core/hub.c:2595 hub_port_connect drivers/usb/core/hub.c:5483 [inline] hub_port_connect_change drivers/usb/core/hub.c:5623 [inline] port_event drivers/usb/core/hub.c:5783 [inline] hub_event+0x2db0/0x4e20 drivers/usb/core/hub.c:5865 process_one_work+0x889/0x15e0 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x8b9/0x12a0 kernel/workqueue.c:2787 kthread+0x2c6/0x3b0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242