From: Jakub Kicinski <kuba@kernel.org>
To: Ian Kumlien <ian.kumlien@gmail.com>
Cc: Linux Kernel Network Developers <netdev@vger.kernel.org>,
netfilter-devel@vger.kernel.org
Subject: Re: Kernel oops with 6.4.4 - flow offloads - NULL pointer deref
Date: Mon, 24 Jul 2023 14:24:15 -0700 [thread overview]
Message-ID: <20230724142415.03a9d133@kernel.org> (raw)
In-Reply-To: <CAA85sZsTF21va8HhwrJc_yuVgVU6+dppEd-SdQpDjqLNFtcneQ@mail.gmail.com>
Adding netfilter to CC.
On Sun, 23 Jul 2023 16:44:50 +0200 Ian Kumlien wrote:
> Running vanilla 6.4.4 with cherry picked:
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.4.5&id=7a59f29961cf97b98b02acaadf5a0b1f8dde938c
>
> cat bug.txt | ./scripts/decode_stacktrace.sh vmlinux
> [108431.234344] BUG: kernel NULL pointer dereference, address: 0000000000000081
> [108431.241509] #PF: supervisor write access in kernel mode
> [108431.246912] #PF: error_code(0x0002) - not-present page
> [108431.252226] PGD 0 P4D 0
> [108431.254938] Oops: 0002 [#1] PREEMPT SMP NOPTI
> [108431.259472] CPU: 2 PID: 76217 Comm: kworker/2:0 Not tainted 6.4.4-dirty #381
> [108431.266698] Hardware name: Supermicro Super
> Server/A2SDi-12C-HLN4F, BIOS 1.7a 10/13/2022
> [108431.274967] Workqueue: events_power_efficient nf_flow_offload_work_gc
> [108431.281599] RIP: 0010:flow_offload_teardown
> (./arch/x86/include/asm/bitops.h:75
> ./include/asm-generic/bitops/instrumented-atomic.h:42
> net/netfilter/nf_flow_table_core.c:362)
> [108431.286746] Code: 00 00 e9 96 fd ff ff 66 0f 1f 44 00 00 48 83 c7
> 08 be 32 00 00 00 e9 82 fd ff ff 66 90 48 8b 87 b0 00 00 00 48 05 81
> 00 00 00 <f0> 80 20 bf f0 80 8f b8 00 00 00 04 48 8b 97 b0 00 00 00 0f
> b6 42
> All code
> ========
> 0: 00 00 add %al,(%rax)
> 2: e9 96 fd ff ff jmp 0xfffffffffffffd9d
> 7: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
> d: 48 83 c7 08 add $0x8,%rdi
> 11: be 32 00 00 00 mov $0x32,%esi
> 16: e9 82 fd ff ff jmp 0xfffffffffffffd9d
> 1b: 66 90 xchg %ax,%ax
> 1d: 48 8b 87 b0 00 00 00 mov 0xb0(%rdi),%rax
> 24: 48 05 81 00 00 00 add $0x81,%rax
> 2a:* f0 80 20 bf lock andb $0xbf,(%rax) <-- trapping instruction
> 2e: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> 35: 04
> 36: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 3d: 0f .byte 0xf
> 3e: b6 42 mov $0x42,%dh
>
> Code starting with the faulting instruction
> ===========================================
> 0: f0 80 20 bf lock andb $0xbf,(%rax)
> 4: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> b: 04
> c: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 13: 0f .byte 0xf
> 14: b6 42 mov $0x42,%dh
> [108431.305700] RSP: 0018:ffffac250ade7e28 EFLAGS: 00010206
> [108431.311107] RAX: 0000000000000081 RBX: ffff9ebc413b42f8 RCX:
> 0000000000000001
> [108431.318420] RDX: 00000001067200c0 RSI: ffff9ebeda71ce58 RDI:
> ffff9ebeda71ce58
> [108431.325735] RBP: ffff9ebc413b4250 R08: ffff9ebc413b4250 R09:
> ffff9ebe3d7fad58
> [108431.333068] R10: 0000000000000000 R11: 0000000000000003 R12:
> ffff9ebfafab0000
> [108431.340415] R13: 0000000000000000 R14: ffff9ebfafab0005 R15:
> ffff9ebd79a0f780
> [108431.347764] FS: 0000000000000000(0000) GS:ffff9ebfafa80000(0000)
> knlGS:0000000000000000
> [108431.356069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.362012] CR2: 0000000000000081 CR3: 000000045e99e000 CR4:
> 00000000003526e0
> [108431.369361] Call Trace:
> [108431.371999] <TASK>
> [108431.374296] ? __die (arch/x86/kernel/dumpstack.c:421
> arch/x86/kernel/dumpstack.c:434)
> [108431.377553] ? page_fault_oops (arch/x86/mm/fault.c:707)
> [108431.381850] ? load_balance (kernel/sched/fair.c:10926)
> [108431.385884] ? exc_page_fault (arch/x86/mm/fault.c:1279
> arch/x86/mm/fault.c:1486 arch/x86/mm/fault.c:1542)
> [108431.390094] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:570)
> [108431.394482] ? flow_offload_teardown
> (./arch/x86/include/asm/bitops.h:75
> ./include/asm-generic/bitops/instrumented-atomic.h:42
> net/netfilter/nf_flow_table_core.c:362)
> [108431.399036] nf_flow_offload_gc_step
> (./arch/x86/include/asm/bitops.h:207
> ./arch/x86/include/asm/bitops.h:239
> ./include/asm-generic/bitops/instrumented-non-atomic.h:142
> net/netfilter/nf_flow_table_core.c:436)
> [108431.403675] nf_flow_offload_work_gc
> (net/netfilter/nf_flow_table_core.c:407
> net/netfilter/nf_flow_table_core.c:452
> net/netfilter/nf_flow_table_core.c:460)
> [108431.408321] process_one_work (kernel/workqueue.c:2413)
> [108431.412533] worker_thread (./include/linux/list.h:292
> kernel/workqueue.c:2556)
> [108431.416396] ? rescuer_thread (kernel/workqueue.c:2498)
> [108431.420608] kthread (kernel/kthread.c:379)
> [108431.423944] ? kthread_complete_and_exit (kernel/kthread.c:332)
> [108431.428937] ret_from_fork (arch/x86/entry/entry_64.S:314)
> [108431.432710] </TASK>
> [108431.435087] Modules linked in: chaoskey
> [108431.439119] CR2: 0000000000000081
> [108431.442633] ---[ end trace 0000000000000000 ]---
> [108431.455408] BUG: kernel NULL pointer dereference, address: 0000000000000008
> [108431.462591] #PF: supervisor read access in kernel mode
> [108431.464358] pstore: backend (erst) writing error (-28)
> [108431.467928] #PF: error_code(0x0000) - not-present page
> [108431.468038] RIP: 0010:flow_offload_teardown
> (./arch/x86/include/asm/bitops.h:75
> ./include/asm-generic/bitops/instrumented-atomic.h:42
> net/netfilter/nf_flow_table_core.c:362)
> [108431.468148] PGD 0
> [108431.468254] Code: 00 00 e9 96 fd ff ff 66 0f 1f 44 00 00 48 83 c7
> 08 be 32 00 00 00 e9 82 fd ff ff 66 90 48 8b 87 b0 00 00 00 48 05 81
> 00 00 00 <f0> 80 20 bf f0 80 8f b8 00 00 00 04 48 8b 97 b0 00 00 00 0f
> b6 42
> All code
> ========
> 0: 00 00 add %al,(%rax)
> 2: e9 96 fd ff ff jmp 0xfffffffffffffd9d
> 7: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
> d: 48 83 c7 08 add $0x8,%rdi
> 11: be 32 00 00 00 mov $0x32,%esi
> 16: e9 82 fd ff ff jmp 0xfffffffffffffd9d
> 1b: 66 90 xchg %ax,%ax
> 1d: 48 8b 87 b0 00 00 00 mov 0xb0(%rdi),%rax
> 24: 48 05 81 00 00 00 add $0x81,%rax
> 2a:* f0 80 20 bf lock andb $0xbf,(%rax) <-- trapping instruction
> 2e: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> 35: 04
> 36: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 3d: 0f .byte 0xf
> 3e: b6 42 mov $0x42,%dh
>
> Code starting with the faulting instruction
> ===========================================
> 0: f0 80 20 bf lock andb $0xbf,(%rax)
> 4: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> b: 04
> c: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 13: 0f .byte 0xf
> 14: b6 42 mov $0x42,%dh
> [108431.473471] P4D 0
> [108431.473571] RSP: 0018:ffffac250ade7e28 EFLAGS: 00010206
> [108431.473740]
> [108431.473841]
> [108431.473949] Oops: 0000 [#2] PREEMPT SMP NOPTI
> [108431.474047] RAX: 0000000000000081 RBX: ffff9ebc413b42f8 RCX:
> 0000000000000001
> [108431.474150] CPU: 6 PID: 0 Comm: swapper/6 Tainted: G D
> 6.4.4-dirty #381
> [108431.474253] RDX: 00000001067200c0 RSI: ffff9ebeda71ce58 RDI:
> ffff9ebeda71ce58
> [108431.474382] Hardware name: Supermicro Super
> Server/A2SDi-12C-HLN4F, BIOS 1.7a 10/13/2022
> [108431.474511] RBP: ffff9ebc413b4250 R08: ffff9ebc413b4250 R09:
> ffff9ebe3d7fad58
> [108431.474640] RIP: 0010:memcmp (lib/string.c:681)
> [108431.474768] R10: 0000000000000000 R11: 0000000000000003 R12:
> ffff9ebfafab0000
> [108431.474898] Code: cc cc cc 48 85 c0 75 f3 0f b6 4f 01 48 83 c7 01
> 84 c9 75 bc eb e3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 eb 14
> 48 8b 06 <48> 39 07 75 17 48 83 c7 08 48 83 c6 08 48 83 ea 08 48 83 fa
> 07 77
> All code
> ========
> 0: cc int3
> 1: cc int3
> 2: cc int3
> 3: 48 85 c0 test %rax,%rax
> 6: 75 f3 jne 0xfffffffffffffffb
> 8: 0f b6 4f 01 movzbl 0x1(%rdi),%ecx
> c: 48 83 c7 01 add $0x1,%rdi
> 10: 84 c9 test %cl,%cl
> 12: 75 bc jne 0xffffffffffffffd0
> 14: eb e3 jmp 0xfffffffffffffff9
> 16: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
> 1d: 00 00 00 00
> 21: 0f 1f 40 00 nopl 0x0(%rax)
> 25: eb 14 jmp 0x3b
> 27: 48 8b 06 mov (%rsi),%rax
> 2a:* 48 39 07 cmp %rax,(%rdi) <-- trapping instruction
> 2d: 75 17 jne 0x46
> 2f: 48 83 c7 08 add $0x8,%rdi
> 33: 48 83 c6 08 add $0x8,%rsi
> 37: 48 83 ea 08 sub $0x8,%rdx
> 3b: 48 83 fa 07 cmp $0x7,%rdx
> 3f: 77 .byte 0x77
>
> Code starting with the faulting instruction
> ===========================================
> 0: 48 39 07 cmp %rax,(%rdi)
> 3: 75 17 jne 0x1c
> 5: 48 83 c7 08 add $0x8,%rdi
> 9: 48 83 c6 08 add $0x8,%rsi
> d: 48 83 ea 08 sub $0x8,%rdx
> 11: 48 83 fa 07 cmp $0x7,%rdx
> 15: 77 .byte 0x77
> [108431.475001] R13: 0000000000000000 R14: ffff9ebfafab0005 R15:
> ffff9ebd79a0f780
> [108431.475129] RSP: 0018:ffffac2500200ae8 EFLAGS: 00010216
> [108431.475297] FS: 0000000000000000(0000) GS:ffff9ebfafa80000(0000)
> knlGS:0000000000000000
> [108431.475426]
> [108431.475534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.475664] RAX: 000000008a00000a RBX: ffff9ebc413b4250 RCX:
> 0000000000000000
> [108431.475764] CR2: 0000000000000081 CR3: 000000045e99e000 CR4:
> 00000000003526e0
> [108431.475872] RDX: 0000000000000032 RSI: ffffac2500200ba0 RDI:
> 0000000000000008
> [108431.476001] note: kworker/2:0[76217] exited with irqs disabled
> [108431.476128] RBP: ffff9ebd42b18058 R08: 000000000000000a R09:
> 0000000000000028
> [108431.653260] R10: 00000000000000f0 R11: 00000000000000f0 R12:
> 0000000000000000
> [108431.660609] R13: ffff9ebc413b4260 R14: ffff9ebd42b18000 R15:
> 0000000000000000
> [108431.667958] FS: 0000000000000000(0000) GS:ffff9ebfafb80000(0000)
> knlGS:0000000000000000
> [108431.676260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.682203] CR2: 0000000000000008 CR3: 0000000109310000 CR4:
> 00000000003526e0
> [108431.689555] Call Trace:
> [108431.692193] <IRQ>
> [108431.694401] ? __die (arch/x86/kernel/dumpstack.c:421
> arch/x86/kernel/dumpstack.c:434)
> [108431.697657] ? page_fault_oops (arch/x86/mm/fault.c:707)
> [108431.701954] ? vhost_poll_wakeup (drivers/vhost/vhost.c:179)
> [108431.706244] ? __wake_up_common (kernel/sched/wait.c:108)
> [108431.710546] ? exc_page_fault (arch/x86/mm/fault.c:1279
> arch/x86/mm/fault.c:1486 arch/x86/mm/fault.c:1542)
> [108431.714756] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:570)
> [108431.719136] ? memcmp (lib/string.c:681)
> [108431.722385] flow_offload_hash_cmp (net/netfilter/nf_flow_table_core.c:253)
> [108431.726854] flow_offload_lookup (./include/linux/rhashtable.h:608
> ./include/linux/rhashtable.h:646
> net/netfilter/nf_flow_table_core.c:376)
> [108431.731234] nf_flow_offload_ip_hook (net/netfilter/nf_flow_table_ip.c:363)
> [108431.736050] ? netlink_broadcast (net/netlink/af_netlink.c:1548)
> [108431.740517] nf_hook_slow (./include/linux/netfilter.h:143
> net/netfilter/core.c:626)
> [108431.744208] __netif_receive_skb_core.constprop.0
> (./include/linux/netfilter_netdev.h:34 net/core/dev.c:5274
> net/core/dev.c:5361)
> [108431.750163] __netif_receive_skb_list_core (net/core/dev.c:5570)
> [108431.755500] netif_receive_skb_list_internal (net/core/dev.c:5638
> net/core/dev.c:5727)
> [108431.761011] napi_complete_done (./include/linux/list.h:37
> ./include/net/gro.h:434 ./include/net/gro.h:429 net/core/dev.c:6067)
> [108431.765308] ixgbe_poll (drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:3191)
> [108431.769093] __napi_poll (net/core/dev.c:6498)
> [108431.772779] net_rx_action (net/core/dev.c:6567 net/core/dev.c:6698)
> [108431.776723] __do_softirq (./arch/x86/include/asm/jump_label.h:27
> ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142
> kernel/softirq.c:572)
> [108431.780501] irq_exit_rcu (kernel/softirq.c:445
> kernel/softirq.c:650 kernel/softirq.c:662)
> [108431.784194] common_interrupt (arch/x86/kernel/irq.c:240 (discriminator 14))
> [108431.788232] </IRQ>
> [108431.790518] <TASK>
> [108431.792808] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:636)
> [108431.797194] RIP: 0010:cpuidle_enter_state (drivers/cpuidle/cpuidle.c:291)
> [108431.802358] Code: 00 e8 52 14 fd fe e8 7d fa ff ff 8b 53 04 49 89
> c5 0f 1f 44 00 00 31 ff e8 cb 83 fc fe 45 84 ff 0f 85 60 02 00 00 fb
> 45 85 f6 <0f> 88 8e 01 00 00 49 63 ce 4c 8b 14 24 48 8d 04 49 48 8d 14
> 81 48
> All code
> ========
> 0: 00 e8 add %ch,%al
> 2: 52 push %rdx
> 3: 14 fd adc $0xfd,%al
> 5: fe (bad)
> 6: e8 7d fa ff ff call 0xfffffffffffffa88
> b: 8b 53 04 mov 0x4(%rbx),%edx
> e: 49 89 c5 mov %rax,%r13
> 11: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
> 16: 31 ff xor %edi,%edi
> 18: e8 cb 83 fc fe call 0xfffffffffefc83e8
> 1d: 45 84 ff test %r15b,%r15b
> 20: 0f 85 60 02 00 00 jne 0x286
> 26: fb sti
> 27: 45 85 f6 test %r14d,%r14d
> 2a:* 0f 88 8e 01 00 00 js 0x1be <-- trapping instruction
> 30: 49 63 ce movslq %r14d,%rcx
> 33: 4c 8b 14 24 mov (%rsp),%r10
> 37: 48 8d 04 49 lea (%rcx,%rcx,2),%rax
> 3b: 48 8d 14 81 lea (%rcx,%rax,4),%rdx
> 3f: 48 rex.W
>
> Code starting with the faulting instruction
> ===========================================
> 0: 0f 88 8e 01 00 00 js 0x194
> 6: 49 63 ce movslq %r14d,%rcx
> 9: 4c 8b 14 24 mov (%rsp),%r10
> d: 48 8d 04 49 lea (%rcx,%rcx,2),%rax
> 11: 48 8d 14 81 lea (%rcx,%rax,4),%rdx
> 15: 48 rex.W
> [108431.821362] RSP: 0018:ffffac25000c7e98 EFLAGS: 00000202
> [108431.826787] RAX: ffff9ebfafbabb80 RBX: ffff9ebfafbb6600 RCX:
> 0000000000000000
> [108431.834135] RDX: 0000000000000006 RSI: fffffff19cf255d6 RDI:
> 0000000000000000
> [108431.841486] RBP: 0000000000000002 R08: 0000000000000000 R09:
> 0000000040000000
> [108431.848833] R10: 0000000000000018 R11: 00000000000000d4 R12:
> ffffffff8c015480
> [108431.856185] R13: 0000629e2a6170d9 R14: 0000000000000002 R15:
> 0000000000000000
> [108431.863539] ? cpuidle_enter_state (drivers/cpuidle/cpuidle.c:285)
> [108431.868104] cpuidle_enter (drivers/cpuidle/cpuidle.c:390)
> [108431.871879] do_idle (kernel/sched/idle.c:219 kernel/sched/idle.c:282)
> [108431.875305] cpu_startup_entry (kernel/sched/idle.c:378 (discriminator 1))
> [108431.879429] start_secondary (arch/x86/kernel/smpboot.c:288)
> [108431.883459] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:370)
> [108431.888714] </TASK>
> [108431.891094] Modules linked in: chaoskey
> [108431.895132] CR2: 0000000000000008
> [108431.898647] ---[ end trace 0000000000000000 ]---
> [108431.898648] BUG: kernel NULL pointer dereference, address: 0000000000000008
> [108431.910630] #PF: supervisor read access in kernel mode
> [108431.915969] #PF: error_code(0x0000) - not-present page
> [108431.916671] RIP: 0010:flow_offload_teardown
> (./arch/x86/include/asm/bitops.h:75
> ./include/asm-generic/bitops/instrumented-atomic.h:42
> net/netfilter/nf_flow_table_core.c:362)
> [108431.921305] PGD 0
> [108431.921416] Code: 00 00 e9 96 fd ff ff 66 0f 1f 44 00 00 48 83 c7
> 08 be 32 00 00 00 e9 82 fd ff ff 66 90 48 8b 87 b0 00 00 00 48 05 81
> 00 00 00 <f0> 80 20 bf f0 80 8f b8 00 00 00 04 48 8b 97 b0 00 00 00 0f
> b6 42
> All code
> ========
> 0: 00 00 add %al,(%rax)
> 2: e9 96 fd ff ff jmp 0xfffffffffffffd9d
> 7: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
> d: 48 83 c7 08 add $0x8,%rdi
> 11: be 32 00 00 00 mov $0x32,%esi
> 16: e9 82 fd ff ff jmp 0xfffffffffffffd9d
> 1b: 66 90 xchg %ax,%ax
> 1d: 48 8b 87 b0 00 00 00 mov 0xb0(%rdi),%rax
> 24: 48 05 81 00 00 00 add $0x81,%rax
> 2a:* f0 80 20 bf lock andb $0xbf,(%rax) <-- trapping instruction
> 2e: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> 35: 04
> 36: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 3d: 0f .byte 0xf
> 3e: b6 42 mov $0x42,%dh
>
> Code starting with the faulting instruction
> ===========================================
> 0: f0 80 20 bf lock andb $0xbf,(%rax)
> 4: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> b: 04
> c: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 13: 0f .byte 0xf
> 14: b6 42 mov $0x42,%dh
> [108431.926468] P4D 0
> [108431.926568] RSP: 0018:ffffac250ade7e28 EFLAGS: 00010206
> [108431.926738]
> [108431.926839]
> [108431.926946] Oops: 0000 [#3] PREEMPT SMP NOPTI
> [108431.927044] RAX: 0000000000000081 RBX: ffff9ebc413b42f8 RCX:
> 0000000000000001
> [108431.927145] CPU: 10 PID: 986 Comm: CPU 1/KVM Tainted: G D
> 6.4.4-dirty #381
> [108431.927249] RDX: 00000001067200c0 RSI: ffff9ebeda71ce58 RDI:
> ffff9ebeda71ce58
> [108431.927377] Hardware name: Supermicro Super
> Server/A2SDi-12C-HLN4F, BIOS 1.7a 10/13/2022
> [108431.927508] RBP: ffff9ebc413b4250 R08: ffff9ebc413b4250 R09:
> ffff9ebe3d7fad58
> [108431.927635] RIP: 0010:memcmp (lib/string.c:681)
> [108431.927765] R10: 0000000000000000 R11: 0000000000000003 R12:
> ffff9ebfafab0000
> [108431.927893] Code: cc cc cc 48 85 c0 75 f3 0f b6 4f 01 48 83 c7 01
> 84 c9 75 bc eb e3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 eb 14
> 48 8b 06 <48> 39 07 75 17 48 83 c7 08 48 83 c6 08 48 83 ea 08 48 83 fa
> 07 77
> All code
> ========
> 0: cc int3
> 1: cc int3
> 2: cc int3
> 3: 48 85 c0 test %rax,%rax
> 6: 75 f3 jne 0xfffffffffffffffb
> 8: 0f b6 4f 01 movzbl 0x1(%rdi),%ecx
> c: 48 83 c7 01 add $0x1,%rdi
> 10: 84 c9 test %cl,%cl
> 12: 75 bc jne 0xffffffffffffffd0
> 14: eb e3 jmp 0xfffffffffffffff9
> 16: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
> 1d: 00 00 00 00
> 21: 0f 1f 40 00 nopl 0x0(%rax)
> 25: eb 14 jmp 0x3b
> 27: 48 8b 06 mov (%rsi),%rax
> 2a:* 48 39 07 cmp %rax,(%rdi) <-- trapping instruction
> 2d: 75 17 jne 0x46
> 2f: 48 83 c7 08 add $0x8,%rdi
> 33: 48 83 c6 08 add $0x8,%rsi
> 37: 48 83 ea 08 sub $0x8,%rdx
> 3b: 48 83 fa 07 cmp $0x7,%rdx
> 3f: 77 .byte 0x77
>
> Code starting with the faulting instruction
> ===========================================
> 0: 48 39 07 cmp %rax,(%rdi)
> 3: 75 17 jne 0x1c
> 5: 48 83 c7 08 add $0x8,%rdi
> 9: 48 83 c6 08 add $0x8,%rsi
> d: 48 83 ea 08 sub $0x8,%rdx
> 11: 48 83 fa 07 cmp $0x7,%rdx
> 15: 77 .byte 0x77
> [108431.927997] R13: 0000000000000000 R14: ffff9ebfafab0005 R15:
> ffff9ebd79a0f780
>
> [108431.928294] FS: 0000000000000000(0000) GS:ffff9ebfafb80000(0000)
> knlGS:0000000000000000
> [108431.928421]
> [108431.928529] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.928658] RAX: 00000000af00000a RBX: ffff9ebc413b4250 RCX:
> 0000000000000000
> [108431.928758] CR2: 0000000000000008 CR3: 0000000109310000 CR4:
> 00000000003526e0
> [108431.928866] RDX: 0000000000000032 RSI: ffffac25002b0ba0 RDI:
> 0000000000000008
> [108431.928996] Kernel panic - not syncing: Fatal exception in interrupt
> [108431.929123] RBP: ffff9ebd42b18058 R08: 000000000000000a R09:
> 000000000000001c
> [108431.929254] R10: 000000000000006b R11: 000000000000006b R12:
> 0000000000000000
> [108431.930351] R13: ffff9ebc413b4260 R14: ffff9ebd42b18000 R15:
> 0000000000000000
> [108431.930482] FS: 00007f50a75fe6c0(0000) GS:ffff9ebfafc80000(0000)
> knlGS:0000000000000000
> [108431.930615] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.930746] CR2: 0000000000000008 CR3: 0000000109310000 CR4:
> 00000000003526e0
> [108431.930879] Call Trace:
> [108431.930992] <IRQ>
> [108431.931124] ? __die (arch/x86/kernel/dumpstack.c:421
> arch/x86/kernel/dumpstack.c:434)
> [108431.931236] ? page_fault_oops (arch/x86/mm/fault.c:707)
> [108431.931347] ? vhost_poll_wakeup (drivers/vhost/vhost.c:179)
> [108431.931456] ? __wake_up_common (kernel/sched/wait.c:108)
> [108431.931572] ? exc_page_fault (arch/x86/mm/fault.c:1279
> arch/x86/mm/fault.c:1486 arch/x86/mm/fault.c:1542)
> [108431.931685] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:570)
> [108431.931801] ? memcmp (lib/string.c:681)
> [108431.931912] flow_offload_hash_cmp (net/netfilter/nf_flow_table_core.c:253)
> [108431.932023] flow_offload_lookup (./include/linux/rhashtable.h:608
> ./include/linux/rhashtable.h:646
> net/netfilter/nf_flow_table_core.c:376)
> [108431.932133] nf_flow_offload_ip_hook (net/netfilter/nf_flow_table_ip.c:363)
> [108431.932245] ? netif_receive_skb (net/core/dev.c:5695 net/core/dev.c:5752)
> [108431.932358] ? reuseport_select_sock (net/core/sock_reuseport.c:609)
> [108431.932476] nf_hook_slow (./include/linux/netfilter.h:143
> net/netfilter/core.c:626)
> [108431.932591] __netif_receive_skb_core.constprop.0
> (./include/linux/netfilter_netdev.h:34 net/core/dev.c:5274
> net/core/dev.c:5361)
> [108431.932709] __netif_receive_skb_list_core (net/core/dev.c:5570)
> [108431.932822] netif_receive_skb_list_internal (net/core/dev.c:5638
> net/core/dev.c:5727)
> [108431.932938] ? napi_gro_flush (net/core/gro.c:342 net/core/gro.c:361)
> [108431.933052] napi_complete_done (./include/linux/list.h:37
> ./include/net/gro.h:434 ./include/net/gro.h:429 net/core/dev.c:6067)
> [108431.933166] ixgbe_poll (drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:3191)
> [108431.933281] ? timekeeping_advance (kernel/time/timekeeping.c:2223
> (discriminator 5))
> [108431.933395] __napi_poll (net/core/dev.c:6498)
> [108431.933506] net_rx_action (net/core/dev.c:6567 net/core/dev.c:6698)
> [108431.933621] __do_softirq (./arch/x86/include/asm/jump_label.h:27
> ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142
> kernel/softirq.c:572)
> [108431.933734] irq_exit_rcu (kernel/softirq.c:445
> kernel/softirq.c:650 kernel/softirq.c:662)
> [108431.933847] common_interrupt (arch/x86/kernel/irq.c:240 (discriminator 14))
> [108431.933958] </IRQ>
> [108431.934063] <TASK>
> [108431.934168] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:636)
> [108431.934277] RIP: 0010:vmx_set_hv_timer (arch/x86/kvm/vmx/vmx.c:7947)
> [108431.934389] Code: 5b c3 cc cc cc cc 31 f6 48 89 df e8 7a dd 01 00
> 85 c0 75 ec c6 83 da 1f 00 00 01 31 c0 c6 83 e9 21 00 00 00 eb da 0f
> 1f 40 00 <41> 56 41 55 41 54 49 89 fc 55 48 89 d5 53 48 89 f3 4c 8b b7
> 08 02
> All code
> ========
> 0: 5b pop %rbx
> 1: c3 ret
> 2: cc int3
> 3: cc int3
> 4: cc int3
> 5: cc int3
> 6: 31 f6 xor %esi,%esi
> 8: 48 89 df mov %rbx,%rdi
> b: e8 7a dd 01 00 call 0x1dd8a
> 10: 85 c0 test %eax,%eax
> 12: 75 ec jne 0x0
> 14: c6 83 da 1f 00 00 01 movb $0x1,0x1fda(%rbx)
> 1b: 31 c0 xor %eax,%eax
> 1d: c6 83 e9 21 00 00 00 movb $0x0,0x21e9(%rbx)
> 24: eb da jmp 0x0
> 26: 0f 1f 40 00 nopl 0x0(%rax)
> 2a:* 41 56 push %r14 <-- trapping instruction
> 2c: 41 55 push %r13
> 2e: 41 54 push %r12
> 30: 49 89 fc mov %rdi,%r12
> 33: 55 push %rbp
> 34: 48 89 d5 mov %rdx,%rbp
> 37: 53 push %rbx
> 38: 48 89 f3 mov %rsi,%rbx
> 3b: 4c rex.WR
> 3c: 8b .byte 0x8b
> 3d: b7 08 mov $0x8,%bh
> 3f: 02 .byte 0x2
>
> Code starting with the faulting instruction
> ===========================================
> 0: 41 56 push %r14
> 2: 41 55 push %r13
> 4: 41 54 push %r12
> 6: 49 89 fc mov %rdi,%r12
> 9: 55 push %rbp
> a: 48 89 d5 mov %rdx,%rbp
> d: 53 push %rbx
> e: 48 89 f3 mov %rsi,%rbx
> 11: 4c rex.WR
> 12: 8b .byte 0x8b
> 13: b7 08 mov $0x8,%bh
> 15: 02 .byte 0x2
> [108431.934498] RSP: 0018:ffffac2503c7fdb0 EFLAGS: 00000206
> [108431.934776] RAX: 0000000000000000 RBX: ffff9ebc49303200 RCX:
> 0000000000000000
> [108431.934886] RDX: ffffac2503c7fdbf RSI: 0000c534e9ede5fa RDI:
> ffff9ebcf5bb23c0
> [108431.935017] RBP: ffff9ebcf5bb23c0 R08: 0000000000000000 R09:
> ffffac2503c7fd0c
> [108431.935148] R10: 0000000000000000 R11: 0000000000000022 R12:
> ffff9ebc4ca4d000
> [108431.935278] R13: ffff9ebcfaea5d00 R14: 0000000000000003 R15:
> ffff9ebcf5bb23c0
> [108431.935413] restart_apic_timer (arch/x86/kvm/lapic.c:2085
> arch/x86/kvm/lapic.c:2138)
> [108431.935552] kvm_arch_vcpu_ioctl_run (arch/x86/kvm/x86.c:10887
> arch/x86/kvm/x86.c:10954 arch/x86/kvm/x86.c:11173)
> [108431.935666] ? kvm_vm_ioctl_irq_line (arch/x86/kvm/x86.c:6241)
> [108431.935778] kvm_vcpu_ioctl (arch/x86/kvm/../../../virt/kvm/kvm_main.c:4124)
> [108431.935891] ? net_rx_action (net/core/dev.c:6567 net/core/dev.c:6698)
> [108431.936003] ? __seccomp_filter (kernel/seccomp.c:1207)
> [108431.936120] __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:870
> fs/ioctl.c:856 fs/ioctl.c:856)
> [108431.936235] do_syscall_64 (arch/x86/entry/common.c:50
> arch/x86/entry/common.c:80)
> [108431.936346] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)
> [108431.936457] RIP: 0033:0x7f512ebfda3c
> [108431.936570] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 48 89 44
> 24 08 48 8d 44 24 20 48 89 44 24 10 c7 04 24 10 00 00 00 b8 10 00 00
> 00 0f 05 <3d> 00 f0 ff ff 89 c2 77 1b 48 8b 44 24 18 64 48 2b 04 25 28
> 00 00
> All code
> ========
> 0: 00 48 89 add %cl,-0x77(%rax)
> 3: 44 24 18 rex.R and $0x18,%al
> 6: 31 c0 xor %eax,%eax
> 8: 48 8d 44 24 60 lea 0x60(%rsp),%rax
> d: 48 89 44 24 08 mov %rax,0x8(%rsp)
> 12: 48 8d 44 24 20 lea 0x20(%rsp),%rax
> 17: 48 89 44 24 10 mov %rax,0x10(%rsp)
> 1c: c7 04 24 10 00 00 00 movl $0x10,(%rsp)
> 23: b8 10 00 00 00 mov $0x10,%eax
> 28: 0f 05 syscall
> 2a:* 3d 00 f0 ff ff cmp $0xfffff000,%eax <-- trapping instruction
> 2f: 89 c2 mov %eax,%edx
> 31: 77 1b ja 0x4e
> 33: 48 8b 44 24 18 mov 0x18(%rsp),%rax
> 38: 64 fs
> 39: 48 rex.W
> 3a: 2b .byte 0x2b
> 3b: 04 25 add $0x25,%al
> 3d: 28 00 sub %al,(%rax)
> ...
>
> Code starting with the faulting instruction
> ===========================================
> 0: 3d 00 f0 ff ff cmp $0xfffff000,%eax
> 5: 89 c2 mov %eax,%edx
> 7: 77 1b ja 0x24
> 9: 48 8b 44 24 18 mov 0x18(%rsp),%rax
> e: 64 fs
> f: 48 rex.W
> 10: 2b .byte 0x2b
> 11: 04 25 add $0x25,%al
> 13: 28 00 sub %al,(%rax)
> ...
> [108431.936678] RSP: 002b:00007f50a75fd5a0 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000010
> [108431.936979] RAX: ffffffffffffffda RBX: 0000556810191420 RCX:
> 00007f512ebfda3c
> [108431.937110] RDX: 0000000000000000 RSI: 000000000000ae80 RDI:
> 000000000000001c
> [108431.937240] RBP: 000000000000ae80 R08: 000055680eb3bdf0 R09:
> 00000000000000ff
> [108431.937371] R10: 0000000000000002 R11: 0000000000000246 R12:
> 0000000000000000
> [108431.937501] R13: 0000000000000001 R14: 0000000000000001 R15:
> 0000000000000000
> [108431.937634] </TASK>
> [108431.937736] Modules linked in: chaoskey
> [108431.937851] CR2: 0000000000000008
> [108431.937959] ---[ end trace 0000000000000000 ]---
> [108431.937962] BUG: kernel NULL pointer dereference, address: 0000000000000000
> [108431.937972] #PF: supervisor read access in kernel mode
> [108431.937977] #PF: error_code(0x0000) - not-present page
> [108431.937982] PGD 0 P4D 0
> [108431.937989] Oops: 0000 [#4] PREEMPT SMP NOPTI
> [108431.937997] CPU: 3 PID: 74552 Comm: kworker/3:1 Tainted: G D
> 6.4.4-dirty #381
> [108431.938006] Hardware name: Supermicro Super
> Server/A2SDi-12C-HLN4F, BIOS 1.7a 10/13/2022
> [108431.938009] Workqueue: events rht_deferred_worker
> [108431.938026] RIP: 0010:rht_deferred_worker (lib/rhashtable.c:244
> lib/rhashtable.c:288 lib/rhashtable.c:328 lib/rhashtable.c:432)
> [108431.938038] Code: 00 48 83 e2 fe 48 0f 44 14 24 48 89 d0 f6 c2 01
> 0f 85 af 01 00 00 48 8b 2a 40 f6 c5 01 74 0b e9 87 02 00 00 48 89 e8
> 4c 89 e5 <4c> 8b 65 00 41 f6 c4 01 74 f0 48 89 c3 41 0f b7 56 d6 49 8b
> 46 e8
> All code
> ========
> 0: 00 48 83 add %cl,-0x7d(%rax)
> 3: e2 fe loop 0x3
> 5: 48 0f 44 14 24 cmove (%rsp),%rdx
> a: 48 89 d0 mov %rdx,%rax
> d: f6 c2 01 test $0x1,%dl
> 10: 0f 85 af 01 00 00 jne 0x1c5
> 16: 48 8b 2a mov (%rdx),%rbp
> 19: 40 f6 c5 01 test $0x1,%bpl
> 1d: 74 0b je 0x2a
> 1f: e9 87 02 00 00 jmp 0x2ab
> 24: 48 89 e8 mov %rbp,%rax
> 27: 4c 89 e5 mov %r12,%rbp
> 2a:* 4c 8b 65 00 mov 0x0(%rbp),%r12 <-- trapping instruction
> 2e: 41 f6 c4 01 test $0x1,%r12b
> 32: 74 f0 je 0x24
> 34: 48 89 c3 mov %rax,%rbx
> 37: 41 0f b7 56 d6 movzwl -0x2a(%r14),%edx
> 3c: 49 8b 46 e8 mov -0x18(%r14),%rax
>
> Code starting with the faulting instruction
> ===========================================
> 0: 4c 8b 65 00 mov 0x0(%rbp),%r12
> 4: 41 f6 c4 01 test $0x1,%r12b
> 8: 74 f0 je 0xfffffffffffffffa
> a: 48 89 c3 mov %rax,%rbx
> d: 41 0f b7 56 d6 movzwl -0x2a(%r14),%edx
> 12: 49 8b 46 e8 mov -0x18(%r14),%rax
> [108431.938044] RSP: 0018:ffffac2509a83e30 EFLAGS: 00010046
> [108431.938050] RAX: ffff9ebeda71ce58 RBX: 0000000000000000 RCX:
> ffff9ebd42b18000
> [108431.938055] RDX: ffff9ebeda71ce58 RSI: 0000000000000006 RDI:
> ffff9ebd42b18000
> [108431.938059] RBP: 0000000000000000 R08: 00000000de58e2a2 R09:
> 0000000000000000
> [108431.938063] R10: ffffffff8b1dd610 R11: 0000000000000000 R12:
> ffff9ebd42b18049
> [108431.938066] R13: ffff9ebd42b18058 R14: ffff9ebc413b42a0 R15:
> ffff9ebc985cc800
> [108431.938191] FS: 0000000000000000(0000) GS:ffff9ebfafac0000(0000)
> knlGS:0000000000000000
> [108431.938304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.938415] CR2: 0000000000000000 CR3: 000000044b69a000 CR4:
> 00000000003526e0
> [108431.938520] Call Trace:
> [108431.938630] <TASK>
> [108431.938766] ? __die (arch/x86/kernel/dumpstack.c:421
> arch/x86/kernel/dumpstack.c:434)
> [108431.938906] ? page_fault_oops (arch/x86/mm/fault.c:707)
> [108431.939025] ? exc_page_fault (arch/x86/mm/fault.c:1279
> arch/x86/mm/fault.c:1486 arch/x86/mm/fault.c:1542)
> [108431.939143] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:570)
> [108431.939320] ? flow_offload_fill_dir (net/netfilter/nf_flow_table_core.c:237)
> [108431.939440] ? rht_deferred_worker (lib/rhashtable.c:244
> lib/rhashtable.c:288 lib/rhashtable.c:328 lib/rhashtable.c:432)
> [108431.939580] process_one_work (kernel/workqueue.c:2413)
> [108431.939720] worker_thread (./include/linux/list.h:292
> kernel/workqueue.c:2556)
> [108431.939857] ? rescuer_thread (kernel/workqueue.c:2498)
> [108431.939993] kthread (kernel/kthread.c:379)
> [108431.940128] ? kthread_complete_and_exit (kernel/kthread.c:332)
> [108431.940267] ret_from_fork (arch/x86/entry/entry_64.S:314)
> [108431.940385] </TASK>
> [108431.940514] Modules linked in: chaoskey
> [108431.940823] CR2: 0000000000000000
> [108431.941035] ---[ end trace 0000000000000000 ]---
> [108431.957494] RIP: 0010:flow_offload_teardown
> (./arch/x86/include/asm/bitops.h:75
> ./include/asm-generic/bitops/instrumented-atomic.h:42
> net/netfilter/nf_flow_table_core.c:362)
> [108431.957615] Code: 00 00 e9 96 fd ff ff 66 0f 1f 44 00 00 48 83 c7
> 08 be 32 00 00 00 e9 82 fd ff ff 66 90 48 8b 87 b0 00 00 00 48 05 81
> 00 00 00 <f0> 80 20 bf f0 80 8f b8 00 00 00 04 48 8b 97 b0 00 00 00 0f
> b6 42
> All code
> ========
> 0: 00 00 add %al,(%rax)
> 2: e9 96 fd ff ff jmp 0xfffffffffffffd9d
> 7: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
> d: 48 83 c7 08 add $0x8,%rdi
> 11: be 32 00 00 00 mov $0x32,%esi
> 16: e9 82 fd ff ff jmp 0xfffffffffffffd9d
> 1b: 66 90 xchg %ax,%ax
> 1d: 48 8b 87 b0 00 00 00 mov 0xb0(%rdi),%rax
> 24: 48 05 81 00 00 00 add $0x81,%rax
> 2a:* f0 80 20 bf lock andb $0xbf,(%rax) <-- trapping instruction
> 2e: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> 35: 04
> 36: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 3d: 0f .byte 0xf
> 3e: b6 42 mov $0x42,%dh
>
> Code starting with the faulting instruction
> ===========================================
> 0: f0 80 20 bf lock andb $0xbf,(%rax)
> 4: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> b: 04
> c: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 13: 0f .byte 0xf
> 14: b6 42 mov $0x42,%dh
> [108431.957727] RSP: 0018:ffffac250ade7e28 EFLAGS: 00010206
> [108431.957940] RAX: 0000000000000081 RBX: ffff9ebc413b42f8 RCX:
> 0000000000000001
> [108431.958048] RDX: 00000001067200c0 RSI: ffff9ebeda71ce58 RDI:
> ffff9ebeda71ce58
> [108431.958155] RBP: ffff9ebc413b4250 R08: ffff9ebc413b4250 R09:
> ffff9ebe3d7fad58
> [108431.958265] R10: 0000000000000000 R11: 0000000000000003 R12:
> ffff9ebfafab0000
> [108431.958372] R13: 0000000000000000 R14: ffff9ebfafab0005 R15:
> ffff9ebd79a0f780
> [108431.958477] FS: 00007f50a75fe6c0(0000) GS:ffff9ebfafc80000(0000)
> knlGS:0000000000000000
> [108431.958587] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.958694] CR2: 0000000000000008 CR3: 0000000109310000 CR4:
> 00000000003526e0
> [108431.977125] RIP: 0010:flow_offload_teardown
> (./arch/x86/include/asm/bitops.h:75
> ./include/asm-generic/bitops/instrumented-atomic.h:42
> net/netfilter/nf_flow_table_core.c:362)
> [108431.977247] Code: 00 00 e9 96 fd ff ff 66 0f 1f 44 00 00 48 83 c7
> 08 be 32 00 00 00 e9 82 fd ff ff 66 90 48 8b 87 b0 00 00 00 48 05 81
> 00 00 00 <f0> 80 20 bf f0 80 8f b8 00 00 00 04 48 8b 97 b0 00 00 00 0f
> b6 42
> All code
> ========
> 0: 00 00 add %al,(%rax)
> 2: e9 96 fd ff ff jmp 0xfffffffffffffd9d
> 7: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
> d: 48 83 c7 08 add $0x8,%rdi
> 11: be 32 00 00 00 mov $0x32,%esi
> 16: e9 82 fd ff ff jmp 0xfffffffffffffd9d
> 1b: 66 90 xchg %ax,%ax
> 1d: 48 8b 87 b0 00 00 00 mov 0xb0(%rdi),%rax
> 24: 48 05 81 00 00 00 add $0x81,%rax
> 2a:* f0 80 20 bf lock andb $0xbf,(%rax) <-- trapping instruction
> 2e: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> 35: 04
> 36: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 3d: 0f .byte 0xf
> 3e: b6 42 mov $0x42,%dh
>
> Code starting with the faulting instruction
> ===========================================
> 0: f0 80 20 bf lock andb $0xbf,(%rax)
> 4: f0 80 8f b8 00 00 00 lock orb $0x4,0xb8(%rdi)
> b: 04
> c: 48 8b 97 b0 00 00 00 mov 0xb0(%rdi),%rdx
> 13: 0f .byte 0xf
> 14: b6 42 mov $0x42,%dh
> [108431.977421] RSP: 0018:ffffac250ade7e28 EFLAGS: 00010206
> [108431.977661] RAX: 0000000000000081 RBX: ffff9ebc413b42f8 RCX:
> 0000000000000001
> [108431.977792] RDX: 00000001067200c0 RSI: ffff9ebeda71ce58 RDI:
> ffff9ebeda71ce58
> [108431.977923] RBP: ffff9ebc413b4250 R08: ffff9ebc413b4250 R09:
> ffff9ebe3d7fad58
> [108431.978054] R10: 0000000000000000 R11: 0000000000000003 R12:
> ffff9ebfafab0000
> [108431.978184] R13: 0000000000000000 R14: ffff9ebfafab0005 R15:
> ffff9ebd79a0f780
> [108431.978317] FS: 0000000000000000(0000) GS:ffff9ebfafac0000(0000)
> knlGS:0000000000000000
> [108431.978430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [108431.978561] CR2: 0000000000000000 CR3: 000000044b69a000 CR4:
> 00000000003526e0
> [108431.978671] note: kworker/3:1[74552] exited with irqs disabled
> [108433.230657] Shutting down cpus with NMI
> [108434.330988] Kernel Offset: 0x9200000 from 0xffffffff81000000
> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [108434.361885] ---[ end Kernel panic - not syncing: Fatal exception
> in interrupt ]---
>
next prev parent reply other threads:[~2023-07-24 21:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-23 14:44 Kernel oops with 6.4.4 - flow offloads - NULL pointer deref Ian Kumlien
2023-07-24 21:24 ` Jakub Kicinski [this message]
2023-07-26 8:03 ` Pablo Neira Ayuso
2023-07-26 12:00 ` Ian Kumlien
2023-07-26 13:38 ` Ian Kumlien
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230724142415.03a9d133@kernel.org \
--to=kuba@kernel.org \
--cc=ian.kumlien@gmail.com \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.