INFO: task syz.2.42:5428 blocked for more than 144 seconds. Not tainted 6.12.0-rc1-next-20241003-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.42 state:D stack:26544 pid:5428 tgid:5427 ppid:5235 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0x1895/0x4b30 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 br_ioctl_call+0x57/0xb0 net/socket.c:1198 dev_ifsioc+0xc20/0xe70 net/core/dev_ioctl.c:588 dev_ioctl+0x719/0x1340 net/core/dev_ioctl.c:783 sock_do_ioctl+0x240/0x460 net/socket.c:1241 sock_ioctl+0x626/0x8e0 net/socket.c:1346 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 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: 0033:0x7f0c4717dff9 RSP: 002b:00007f0c47ecc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f0c47335f80 RCX: 00007f0c4717dff9 RDX: 0000000020000000 RSI: 00000000000089a2 RDI: 0000000000000005 RBP: 00007f0c471f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0c47335f80 R15: 00007ffdae923d38 Showing all locks held in the system: 1 lock held by khungtaskd/30: