====================================== | | WAIT TIMEOUT stdout | [ 5254.490671][ C0] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000091: 0000 [#1] SMP KASAN NOPTI | [ 5254.491191][ C0] KASAN: null-ptr-deref in range [0x0000000000000488-0x000000000000048f] [ 5254.491872][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 5254.492126][ C0] RIP: 0010:veth_xdp_rcv (./include/linux/netdevice.h:2632 (discriminator 13) drivers/net/veth.c:912 (discriminator 13)) [ 5254.492344][ C0] Code: 40 0d 00 00 e8 1f 18 de 00 85 c0 0f 85 c6 06 00 00 49 8d bc 24 88 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e b6 0a 00 00 41 3b ac 24 88 04 All code ======== 0: 40 0d 00 00 e8 1f rex or $0x1fe80000,%eax 6: 18 de sbb %bl,%dh 8: 00 85 c0 0f 85 c6 add %al,-0x397af040(%rbp) e: 06 (bad) f: 00 00 add %al,(%rax) 11: 49 8d bc 24 88 04 00 lea 0x488(%r12),%rdi 18: 00 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx 2a:* 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e b6 0a 00 00 jle 0xaf0 3a: 41 rex.B 3b: 3b .byte 0x3b 3c: ac lods %ds:(%rsi),%al 3d: 24 88 and $0x88,%al 3f: 04 .byte 0x4 Code starting with the faulting instruction =========================================== 0: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 4: 84 c0 test %al,%al 6: 74 08 je 0x10 8: 3c 03 cmp $0x3,%al a: 0f 8e b6 0a 00 00 jle 0xac6 10: 41 rex.B 11: 3b .byte 0x3b 12: ac lods %ds:(%rsi),%al 13: 24 88 and $0x88,%al 15: 04 .byte 0x4 [ 5254.493085][ C0] RSP: 0018:ffffc90000007a18 EFLAGS: 00010202 [ 5254.493354][ C0] RAX: dffffc0000000000 RBX: ffff88800cb32000 RCX: 1ffff92000000f52 [ 5254.493667][ C0] RDX: 0000000000000091 RSI: ffffffffb0253e00 RDI: 0000000000000488 [ 5254.493973][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 5254.494279][ C0] R10: ffffc90000007e90 R11: 0000000000000000 R12: 0000000000000000 [ 5254.494588][ C0] R13: ffffc90000007bc8 R14: 0000000000000040 R15: ffffc90000007bc8 [ 5254.494902][ C0] FS: 0000000000000000(0000) GS:ffff8880b9dbd000(0000) knlGS:0000000000000000 [ 5254.495271][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5254.495535][ C0] CR2: 00000000004060bb CR3: 000000001784b003 CR4: 0000000000772ef0 [ 5254.495850][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5254.496162][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5254.496474][ C0] PKRU: 55555554 [ 5254.496631][ C0] Call Trace: [ 5254.496788][ C0] [ 5254.496895][ C0] ? timerqueue_add (lib/timerqueue.c:41) [ 5254.497122][ C0] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:902) [ 5254.497331][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) [ 5254.497546][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 5254.497805][ C0] ? sched_balance_find_src_group (kernel/sched/fair.c:11309) [ 5254.498065][ C0] ? __pfx_sched_balance_find_src_group (kernel/sched/fair.c:11296) [ 5254.498327][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) [ 5254.498535][ C0] veth_poll (drivers/net/veth.c:981) [ 5254.498692][ C0] ? __pfx_veth_poll (drivers/net/veth.c:969) [ 5254.498900][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 5254.499115][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) [ 5254.499326][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 5254.499532][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) [ 5254.499742][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) [ 5254.499954][ C0] __napi_poll.constprop.0 (net/core/dev.c:7414) [ 5254.500165][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) [ 5254.500372][ C0] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) [ 5254.500588][ C0] ? __pfx_net_rx_action (net/core/dev.c:7567) [ 5254.500798][ C0] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) [ 5254.501011][ C0] ? ktime_get (kernel/time/timekeeping.c:343 (discriminator 4) kernel/time/timekeeping.c:360 (discriminator 4) kernel/time/timekeeping.c:778 (discriminator 4)) [ 5254.501174][ C0] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) [ 5254.501440][ C0] handle_softirqs (kernel/softirq.c:580) [ 5254.501652][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) [ 5254.501860][ C0] irq_exit_rcu (kernel/softirq.c:698) [ 5254.502010][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) [ 5254.502219][ C0] [ 5254.502329][ C0] [ 5254.502436][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) [ 5254.502693][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) [ 5254.502913][ C0] Code: 60 d3 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d a3 d5 25 00 fb f4 7c 57 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 All code ======== 0: 60 (bad) 1: d3 00 roll %cl,(%rax) 3: c3 ret 4: cc int3 5: cc int3 6: cc int3 7: cc int3 8: 0f 1f 00 nopl (%rax) b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: f3 0f 1e fa endbr64 1f: 66 90 xchg %ax,%ax 21: 0f 00 2d a3 d5 25 00 verw 0x25d5a3(%rip) # 0x25d5cb 28: fb sti 29: f4 hlt 2a:* e9 7c 57 02 00 jmp 0x257ab <-- trapping instruction 2f: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 36: 00 00 00 39: 66 90 xchg %ax,%ax 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: e9 7c 57 02 00 jmp 0x25781 5: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) c: 00 00 00 f: 66 90 xchg %ax,%ax 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ 5254.503667][ C0] RSP: 0018:ffffffffb1207df8 EFLAGS: 00000242 [ 5254.503931][ C0] RAX: 000000000384b985 RBX: 1ffffffff6240fc3 RCX: ffffffffafe35a39 [ 5254.504243][ C0] RDX: 0000000000000000 RSI: ffffffffb0b0e488 RDI: ffffffffb0253e80 [ 5254.504551][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c667a [ 5254.504858][ C0] R10: ffff88806ce333d3 R11: 0000000000000000 R12: 0000000000000000 [ 5254.505177][ C0] R13: ffffffffb1233240 R14: dffffc0000000000 R15: 0000000000014770 [ 5254.505501][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) [ 5254.505767][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) [ 5254.505924][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) [ 5254.506128][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) [ 5254.506335][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) [ 5254.506541][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) [ 5254.506751][ C0] do_idle (kernel/sched/idle.c:325) [ 5254.506910][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) [ 5254.507123][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) [ 5254.507281][ C0] start_kernel (init/main.c:1049 (discriminator 1)) [ 5254.507497][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) [ 5254.507709][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) Finger prints: veth_xdp_rcv:veth_poll:net_rx_action:handle_softirqs:__irq_exit_rcu