INFO: task kworker/0:8:3711 blocked for more than 143 seconds. Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:8 state:D stack:25176 pid:3711 ppid:2 flags:0x00004000 Workqueue: events request_firmware_work_func Call Trace: context_switch kernel/sched/core.c:5194 [inline] __schedule+0xbd2/0x55b0 kernel/sched/core.c:6506 schedule+0xda/0x1b0 kernel/sched/core.c:6582 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6641 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747 device_lock include/linux/device.h:835 [inline] ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1135 [inline] ath9k_hif_usb_firmware_cb+0x3a9/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1268 request_firmware_work_func+0x12c/0x230 drivers/base/firmware_loader/main.c:1107 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc6b/0xfc0 kernel/hung_task.c:369 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2975 Comm: udevd Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:write_comp_data+0x0/0x90 kernel/kcov.c:236 Code: df 85 7e 81 e2 00 01 ff 00 75 10 65 48 8b 04 25 80 6f 02 00 48 8b 80 88 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <65> 8b 05 b9 df 85 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 RSP: 0018:ffffc9000319fe40 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000fe0 RCX: ffffffff81d4cc81 RDX: ffff8880779f53ff RSI: ffff8880779f4420 RDI: 0000000000000006 RBP: ffff8880779f5400 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000fe0 R11: 0000000000000000 R12: ffff8880779f4420 R13: 0000000000000000 R14: ffff8880779f53ff R15: ffffffff8de09810 FS: 00007ff9f09d7840(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8a01b7d1b8 CR3: 00000000264f8000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_bogus_address mm/usercopy.c:153 [inline] __check_object_size mm/usercopy.c:222 [inline] __check_object_size+0x61/0x5a0 mm/usercopy.c:212 check_object_size include/linux/thread_info.h:199 [inline] strncpy_from_user+0xaa/0x3c0 lib/strncpy_from_user.c:137 getname_flags.part.0+0x95/0x4f0 fs/namei.c:150 getname_flags include/linux/audit.h:320 [inline] getname fs/namei.c:218 [inline] __do_sys_unlink fs/namei.c:4345 [inline] __se_sys_unlink fs/namei.c:4343 [inline] __x64_sys_unlink+0xb1/0x110 fs/namei.c:4343 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff9f05272d7 Code: f0 ff ff 73 01 c3 48 8b 0d 9e db 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 db 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007fff356aca38 EFLAGS: 00000202 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff9f05272d7 RDX: 0000000000000000 RSI: 000000003e1ba880 RDI: 000055c2110650d8 RBP: 000055c212d04300 R08: 000000003e1f8720 R09: 00007fff3570d080 R10: 00007fff3570d090 R11: 0000000000000202 R12: 0000000000000bb8 R13: 000055c212d19350 R14: 0000000000000000 R15: 0000000000000000