[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 15.611936][ C1] random: crng init done [ 15.616459][ C1] random: 7 urandom warning(s) missed due to ratelimiting Warning: Permanently added '10.128.0.38' (ECDSA) to the list of known hosts. executing program [ 22.743754][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 22.983514][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 23.103459][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 23.113747][ T12] usb 1-1: New USB device found, idVendor=1668, idProduct=0421, bcdDevice=ac.4f [ 23.122778][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 23.133556][ T12] usb 1-1: config 0 descriptor?? [ 23.189475][ T12] prism2_usb 1-1:0.0 (unnamed net_device) (uninitialized): prism2_usb: Checking for firmware prism2_ru.fw [ 23.205727][ T12] usb 1-1: Direct firmware load for prism2_ru.fw failed with error -2 [ 23.214088][ T12] prism2_usb 1-1:0.0 (unnamed net_device) (uninitialized): prism2_usb: Firmware not available, but not essential [ 23.226201][ T12] prism2_usb 1-1:0.0 (unnamed net_device) (uninitialized): prism2_usb: can continue to use card anyway. [ 23.273482][ T12] prism2_usb 1-1:0.0 (unnamed net_device) (uninitialized): Failed to submit CTLX[1]: error=-2 [ 23.283980][ T12] prism2_usb 1-1:0.0 (unnamed net_device) (uninitialized): CTLX[1] not in a terminating state(Request pending) [ 23.298278][ T12] prism2_usb 1-1:0.0 (unnamed net_device) (uninitialized): CTLX[1] error: state(Request pending) [ 23.373417][ T338] udc-core: couldn't find an available UDC or it's busy [ 23.380507][ T338] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 23.389337][ T338] udc-core: couldn't find an available UDC or it's busy [ 23.396346][ T338] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 23.413257][ C0] skbuff: skb_under_panic: text:ffffffff84afc78b len:3088 put:148 head:ffff8881c82756c0 data:ffff8881c82756a8 tail:0xbf8 end:0xc00 dev: [ 23.428042][ C0] ------------[ cut here ]------------ [ 23.433477][ C0] kernel BUG at net/core/skbuff.c:109! [ 23.438919][ C0] invalid opcode: 0000 [#1] SMP KASAN [ 23.444264][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc3-syzkaller #0 [ 23.452211][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.462361][ C0] RIP: 0010:skb_panic+0x16c/0x16e [ 23.467376][ C0] Code: fc 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 20 5b b2 86 ff 74 24 10 ff 74 24 20 e8 41 12 45 fc <0f> 0b e8 3b 11 5b fc 4c 8b 64 24 18 e8 b1 b2 84 fc 48 c7 c1 e0 66 [ 23.486961][ C0] RSP: 0018:ffff8881db209998 EFLAGS: 00010086 [ 23.493124][ C0] RAX: 000000000000008b RBX: ffff8881c6bb2640 RCX: 0000000000000000 [ 23.501327][ C0] RDX: ffffffff8722f840 RSI: ffffffff8129b4e3 RDI: ffffed103b641325 [ 23.509270][ C0] RBP: ffffffff86b266e0 R08: 000000000000008b R09: ffff8881db22f50f [ 23.517226][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff84afc78b [ 23.525169][ C0] R13: 0000000000000094 R14: ffffffff86b25ae0 R15: 0000000000000c00 [ 23.533115][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 23.542015][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.548580][ C0] CR2: 00007f0f4a8f8000 CR3: 00000001c497c000 CR4: 00000000001406f0 [ 23.556532][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.564479][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.572420][ C0] Call Trace: [ 23.575678][ C0] [ 23.618938][ C0] ? hfa384x_usbin_callback+0x91b/0x23c0 [ 23.624694][ C0] skb_push.cold+0x24/0x24 [ 23.629108][ C0] hfa384x_usbin_callback+0x91b/0x23c0 [ 23.634547][ C0] ? perf_trace_preemptirq_template+0x167/0x400 [ 23.640765][ C0] __usb_hcd_giveback_urb+0x32d/0x560 [ 23.646111][ C0] usb_hcd_giveback_urb+0x367/0x410 [ 23.651292][ C0] dummy_timer+0x11f2/0x3240 [ 23.655861][ C0] ? lock_downgrade+0x730/0x730 [ 23.660681][ C0] ? dummy_dequeue+0x490/0x490 [ 23.665430][ C0] call_timer_fn+0x1ac/0x6e0 [ 23.669989][ C0] ? dummy_dequeue+0x490/0x490 [ 23.674739][ C0] ? msleep_interruptible+0x130/0x130 [ 23.680105][ C0] ? lock_downgrade+0x730/0x730 [ 23.684927][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 23.690106][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x550 [ 23.696065][ C0] ? trace_hardirqs_on+0x5f/0x200 [ 23.701065][ C0] ? dummy_dequeue+0x490/0x490 [ 23.705810][ C0] __run_timers.part.0+0x54c/0x9e0 [ 23.710893][ C0] ? call_timer_fn+0x6e0/0x6e0 [ 23.715642][ C0] ? clockevents_program_event+0x12b/0x350 [ 23.721438][ C0] ? tick_program_event+0xa8/0x130 [ 23.726528][ C0] run_timer_softirq+0x80/0x120 [ 23.731357][ C0] __do_softirq+0x222/0x95b [ 23.735833][ C0] asm_call_on_stack+0xf/0x20 [ 23.740476][ C0] [ 23.743386][ C0] do_softirq_own_stack+0xed/0x140 [ 23.749421][ C0] irq_exit_rcu+0x150/0x1f0 [ 23.753896][ C0] sysvec_apic_timer_interrupt+0x49/0xc0 [ 23.759508][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 23.765458][ C0] RIP: 0010:acpi_safe_halt+0x72/0x90 [ 23.770728][ C0] Code: 74 06 5b e9 60 c8 8f fb e8 5b c8 8f fb e8 a6 53 95 fb e9 0c 00 00 00 e8 4c c8 8f fb 0f 00 2d c5 e5 74 00 e8 40 c8 8f fb fb f4 e8 98 4d 95 fb 5b e9 32 c8 8f fb 48 89 df e8 fa 72 b9 fb eb ab [ 23.790301][ C0] RSP: 0018:ffffffff87207c80 EFLAGS: 00000293 [ 23.796336][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 23.804276][ C0] RDX: ffffffff8722f840 RSI: ffffffff85afd9a0 RDI: ffffffff85afd98a [ 23.812218][ C0] RBP: ffff8881d8cca064 R08: 0000000000000000 R09: 0000000000000000 [ 23.820163][ C0] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881d8cca064 [ 23.828106][ C0] R13: 1ffffffff0e40f99 R14: ffff8881d8cca065 R15: 0000000000000001 [ 23.836055][ C0] ? acpi_safe_halt+0x70/0x90 [ 23.840702][ C0] ? acpi_safe_halt+0x5a/0x90 [ 23.845349][ C0] acpi_idle_do_entry+0x15c/0x1b0 [ 23.850343][ C0] acpi_idle_enter+0x3f0/0xa50 [ 23.855093][ C0] ? acpi_idle_enter_s2idle+0x190/0x190 [ 23.860611][ C0] ? kvm_sched_clock_read+0x14/0x30 [ 23.865795][ C0] ? sched_clock+0x5/0x10 [ 23.870095][ C0] ? sched_clock_cpu+0x18/0x170 [ 23.874919][ C0] cpuidle_enter_state+0xff/0x870 [ 23.879916][ C0] ? rcu_read_lock_sched_held+0x3a/0x70 [ 23.885443][ C0] cpuidle_enter+0x4a/0xa0 [ 23.889836][ C0] do_idle+0x3d6/0x5a0 [ 23.893883][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 23.898877][ C0] ? schedule+0xe1/0x2b0 [ 23.903870][ C0] cpu_startup_entry+0x14/0x20 [ 23.908606][ C0] start_kernel+0xa1b/0xa56 [ 23.913081][ C0] ? mem_encrypt_init+0x5/0x5 [ 23.917729][ C0] ? x86_cpuid_vendor+0x84/0x90 [ 23.922549][ C0] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 23.928413][ C0] ? load_ucode_bsp+0x1b7/0x1f7 [ 23.933235][ C0] secondary_startup_64+0xb6/0xc0 [ 23.938227][ C0] Modules linked in: [ 23.942360][ C0] ---[ end trace 3bd3bbd4a684abea ]--- [ 23.947789][ C0] RIP: 0010:skb_panic+0x16c/0x16e [ 23.952782][ C0] Code: fc 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 20 5b b2 86 ff 74 24 10 ff 74 24 20 e8 41 12 45 fc <0f> 0b e8 3b 11 5b fc 4c 8b 64 24 18 e8 b1 b2 84 fc 48 c7 c1 e0 66 [ 23.972357][ C0] RSP: 0018:ffff8881db209998 EFLAGS: 00010086 [ 23.978402][ C0] RAX: 000000000000008b RBX: ffff8881c6bb2640 RCX: 0000000000000000 [ 23.986355][ C0] RDX: ffffffff8722f840 RSI: ffffffff8129b4e3 RDI: ffffed103b641325 [ 23.994304][ C0] RBP: ffffffff86b266e0 R08: 000000000000008b R09: ffff8881db22f50f [ 24.002247][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff84afc78b [ 24.010188][ C0] R13: 0000000000000094 R14: ffffffff86b25ae0 R15: 0000000000000c00 [ 24.018132][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 24.027031][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.033586][ C0] CR2: 00007f0f4a8f8000 CR3: 00000001c497c000 CR4: 00000000001406f0 [ 24.041530][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.049474][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.057418][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 24.065235][ C0] Kernel Offset: disabled [ 24.069548][ C0] Rebooting in 86400 seconds..