skbuff: skb_under_panic: text:ffffffff84afc78b len:3088 put:148 head:ffff8881c82756c0 data:ffff8881c82756a8 tail:0xbf8 end:0xc00 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:109! invalid opcode: 0000 [#1] SMP KASAN CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109 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 RSP: 0018:ffff8881db209998 EFLAGS: 00010086 RAX: 000000000000008b RBX: ffff8881c6bb2640 RCX: 0000000000000000 RDX: ffffffff8722f840 RSI: ffffffff8129b4e3 RDI: ffffed103b641325 RBP: ffffffff86b266e0 R08: 000000000000008b R09: ffff8881db22f50f R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff84afc78b R13: 0000000000000094 R14: ffffffff86b25ae0 R15: 0000000000000c00 FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0f4a8f8000 CR3: 00000001c497c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_under_panic net/core/skbuff.c:119 [inline] skb_push.cold+0x24/0x24 net/core/skbuff.c:1884 hfa384x_usbin_rx drivers/staging/wlan-ng/hfa384x_usb.c:3287 [inline] hfa384x_usbin_callback+0x91b/0x23c0 drivers/staging/wlan-ng/hfa384x_usb.c:3026 __usb_hcd_giveback_urb+0x32d/0x560 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1716 dummy_timer+0x11f2/0x3240 drivers/usb/gadget/udc/dummy_hcd.c:1967 call_timer_fn+0x1ac/0x6e0 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers.part.0+0x54c/0x9e0 kernel/time/timer.c:1773 __run_timers kernel/time/timer.c:1745 [inline] run_timer_softirq+0x80/0x120 kernel/time/timer.c:1786 __do_softirq+0x222/0x95b kernel/softirq.c:292 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0xed/0x140 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:387 [inline] __irq_exit_rcu kernel/softirq.c:417 [inline] irq_exit_rcu+0x150/0x1f0 kernel/softirq.c:429 sysvec_apic_timer_interrupt+0x49/0xc0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:49 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:acpi_safe_halt+0x72/0x90 drivers/acpi/processor_idle.c:112 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 RSP: 0018:ffffffff87207c80 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffffff8722f840 RSI: ffffffff85afd9a0 RDI: ffffffff85afd98a RBP: ffff8881d8cca064 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881d8cca064 R13: 1ffffffff0e40f99 R14: ffff8881d8cca065 R15: 0000000000000001 acpi_idle_do_entry+0x15c/0x1b0 drivers/acpi/processor_idle.c:525 acpi_idle_enter+0x3f0/0xa50 drivers/acpi/processor_idle.c:651 cpuidle_enter_state+0xff/0x870 drivers/cpuidle/cpuidle.c:235 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:346 call_cpuidle kernel/sched/idle.c:126 [inline] cpuidle_idle_call kernel/sched/idle.c:214 [inline] do_idle+0x3d6/0x5a0 kernel/sched/idle.c:276 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:372 start_kernel+0xa1b/0xa56 init/main.c:1043 secondary_startup_64+0xb6/0xc0 arch/x86/kernel/head_64.S:243 Modules linked in: ---[ end trace 3bd3bbd4a684abea ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109 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 RSP: 0018:ffff8881db209998 EFLAGS: 00010086 RAX: 000000000000008b RBX: ffff8881c6bb2640 RCX: 0000000000000000 RDX: ffffffff8722f840 RSI: ffffffff8129b4e3 RDI: ffffed103b641325 RBP: ffffffff86b266e0 R08: 000000000000008b R09: ffff8881db22f50f R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff84afc78b R13: 0000000000000094 R14: ffffffff86b25ae0 R15: 0000000000000c00 FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0f4a8f8000 CR3: 00000001c497c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400