last executing test programs: 86.271111ms ago: executing program 2 (id=3): syz_open_dev$sndmidi(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$sndmidi(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$sndmidi(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$sndmidi(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$sndmidi(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$sndmidi(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$sndmidi(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$sndmidi(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$sndmidi(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$sndmidi(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$sndmidi(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$sndmidi(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$sndmidi(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$sndmidi(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$sndmidi(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$sndmidi(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$sndmidi(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$sndmidi(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$sndmidi(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$sndmidi(&(0x7f0000000500), 0x29, 0x800) 58.405348ms ago: executing program 3 (id=4): syz_open_dev$sndhw(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$sndhw(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$sndhw(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$sndhw(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$sndhw(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$sndhw(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$sndhw(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$sndhw(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$sndhw(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$sndhw(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$sndhw(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$sndhw(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$sndhw(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$sndhw(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$sndhw(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$sndhw(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$sndhw(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$sndhw(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$sndhw(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$sndhw(&(0x7f0000000500), 0x29, 0x800) 17.30033ms ago: executing program 1 (id=2): expanding glob: /sys/**/* 5.274383ms ago: executing program 2 (id=6): syz_open_dev$usbfs(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$usbfs(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$usbfs(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$usbfs(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$usbfs(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$usbfs(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$usbfs(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$usbfs(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$usbfs(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$usbfs(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$usbfs(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$usbfs(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$usbfs(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$usbfs(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$usbfs(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$usbfs(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$usbfs(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$usbfs(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$usbfs(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$usbfs(&(0x7f0000000500), 0x29, 0x800) 0s ago: executing program 3 (id=7): syz_open_dev$sndpcmp(&(0x7f0000000040), 0x1, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000080), 0x1, 0x1) syz_open_dev$sndpcmp(&(0x7f00000000c0), 0x1, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000100), 0x1, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000140), 0xb, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000180), 0xb, 0x1) syz_open_dev$sndpcmp(&(0x7f00000001c0), 0xb, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000200), 0xb, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000240), 0x15, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000280), 0x15, 0x1) syz_open_dev$sndpcmp(&(0x7f00000002c0), 0x15, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000300), 0x15, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000340), 0x1f, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000380), 0x1f, 0x1) syz_open_dev$sndpcmp(&(0x7f00000003c0), 0x1f, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000400), 0x1f, 0x800) syz_open_dev$sndpcmp(&(0x7f0000000440), 0x29, 0x0) syz_open_dev$sndpcmp(&(0x7f0000000480), 0x29, 0x1) syz_open_dev$sndpcmp(&(0x7f00000004c0), 0x29, 0x2) syz_open_dev$sndpcmp(&(0x7f0000000500), 0x29, 0x800) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.125' (ED25519) to the list of known hosts. [ 76.242886][ T5820] cgroup: Unknown subsys name 'net' [ 76.487459][ T5820] cgroup: Unknown subsys name 'cpuset' [ 76.562533][ T5820] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 78.287467][ T5820] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 80.213099][ T5835] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 80.215304][ T5835] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 80.216420][ T5835] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 80.219729][ T5835] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 80.221281][ T5835] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 80.732248][ C0] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 [ 80.732269][ C0] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 16, name: ktimers/0 [ 80.732289][ C0] preempt_count: 0, expected: 0 [ 80.732299][ C0] RCU nest depth: 2, expected: 2 [ 80.732310][ C0] 7 locks held by ktimers/0/16: [ 80.732323][ C0] #0: ffffffff8d84a680 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0xa1/0x400 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 80.732397][ C0] #1: ffff8880b8823d90 ((softirq_ctrl.lock)){+.+.}-{3:3}, at: __local_bh_disable_ip+0x264/0x400 [ 80.732447][ C0] #2: ffffffff8d9a8b00 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1bb/0x2c0 [ 80.732499][ C0] #3: ffffffff8d9a8b00 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0xa1/0x400 [ 80.732556][ C0] #4: ffff88801989a138 ((wq_completion)events_bh){+...}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 [ 80.732607][ C0] #5: ffffc90000157a00 ((work_completion)(&bh->bh)){+...}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 [ 80.732654][ C0] #6: ffff8880b8828b50 ((lock)#3){+.+.}-{3:3}, at: kcov_remote_start+0x92/0x460 [ 80.732711][ C0] irq event stamp: 88893 [ 80.732720][ C0] hardirqs last enabled at (88892): [] _raw_spin_unlock_irqrestore+0x85/0x110 [ 80.732747][ C0] hardirqs last disabled at (88893): [] __usb_hcd_giveback_urb+0x3f5/0x710 [ 80.732772][ C0] softirqs last enabled at (88858): [] run_ktimerd+0xf1/0x190 [ 80.732802][ C0] softirqs last disabled at (88864): [] smpboot_thread_fn+0x542/0xa60 [ 80.732848][ C0] CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Tainted: G W 6.16.0-syzkaller-10859-g821c9e515db5 #0 PREEMPT_{RT,(full)} [ 80.732886][ C0] Tainted: [W]=WARN [ 80.732892][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 80.732906][ C0] Call Trace: [ 80.732915][ C0] [ 80.732924][ C0] dump_stack_lvl+0x189/0x250 [ 80.732951][ C0] ? smpboot_thread_fn+0x542/0xa60 [ 80.732973][ C0] ? smpboot_thread_fn+0x542/0xa60 [ 80.733000][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 80.733038][ C0] ? print_lock_name+0xde/0x100 [ 80.733067][ C0] __might_resched+0x44b/0x5d0 [ 80.733098][ C0] ? __pfx___might_resched+0x10/0x10 [ 80.733123][ C0] ? kcov_remote_start+0x92/0x460 [ 80.733160][ C0] rt_spin_lock+0xc7/0x2c0 [ 80.733184][ C0] ? led_trigger_blink_setup+0xa8/0x300 [ 80.733214][ C0] ? __pfx_rt_spin_lock+0x10/0x10 [ 80.733241][ C0] ? __pfx_led_trigger_blink_setup+0x10/0x10 [ 80.733263][ C0] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 80.733283][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 80.733311][ C0] kcov_remote_start+0x92/0x460 [ 80.733340][ C0] __usb_hcd_giveback_urb+0x427/0x710 [ 80.733369][ C0] ? __pfx___usb_hcd_giveback_urb+0x10/0x10 [ 80.733409][ C0] usb_giveback_urb_bh+0x296/0x420 [ 80.733446][ C0] ? __pfx_usb_giveback_urb_bh+0x10/0x10 [ 80.733475][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.733494][ C0] ? process_scheduled_works+0x9ef/0x17b0 [ 80.733520][ C0] ? process_scheduled_works+0x9ef/0x17b0 [ 80.733548][ C0] process_scheduled_works+0xae1/0x17b0 [ 80.733609][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 80.733644][ C0] ? assign_work+0x3a1/0x410 [ 80.733675][ C0] bh_worker+0x2b1/0x600 [ 80.733712][ C0] tasklet_action+0xc/0x70 [ 80.733737][ C0] handle_softirqs+0x22c/0x710 [ 80.733773][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 80.733811][ C0] run_ktimerd+0xcf/0x190 [ 80.733839][ C0] ? __pfx_run_ktimerd+0x10/0x10 [ 80.733865][ C0] ? schedule+0x91/0x360 [ 80.733913][ C0] ? smpboot_thread_fn+0x4d/0xa60 [ 80.733936][ C0] smpboot_thread_fn+0x542/0xa60 [ 80.733963][ C0] ? smpboot_thread_fn+0x4d/0xa60 [ 80.733999][ C0] kthread+0x711/0x8a0 [ 80.734031][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 80.734058][ C0] ? __pfx_kthread+0x10/0x10 [ 80.734093][ C0] ? __pfx_kthread+0x10/0x10 [ 80.734125][ C0] ret_from_fork+0x3f9/0x770 [ 80.734156][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 80.734188][ C0] ? __switch_to_asm+0x39/0x70 [ 80.734208][ C0] ? __switch_to_asm+0x33/0x70 [ 80.734226][ C0] ? __pfx_kthread+0x10/0x10 [ 80.734258][ C0] ret_from_fork_asm+0x1a/0x30 [ 80.734294][ C0] [ 86.936441][ T1231] cfg80211: failed to load regulatory.db