====================================== | [ 412.787299][ T3309] vx10: left promiscuous mode | [ 412.787603][ T3309] br1: port 1(vx10) entered disabled state | [ 414.644382][ T3320] Oops: general protection fault, probably for non-canonical address 0xfbd59c0000000024: 0000 [#1] PREEMPT SMP KASAN NOPTI | [ 414.644771][ T3320] KASAN: maybe wild-memory-access in range [0xdead000000000120-0xdead000000000127] [ 414.645232][ T3320] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 414.645554][ T3320] RIP: 0010:neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) [ 414.645748][ T3320] Code: 0f 85 ef 04 00 00 49 8d 7f 08 49 8b 1f 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 cc 04 00 00 49 8b 6f 08 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 19 05 00 00 48 89 5d 00 48 85 db 74 1a 48 8d All code ======== 0: 0f 85 ef 04 00 00 jne 0x4f5 6: 49 8d 7f 08 lea 0x8(%r15),%rdi a: 49 8b 1f mov (%r15),%rbx d: 48 89 f8 mov %rdi,%rax 10: 48 c1 e8 03 shr $0x3,%rax 14: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 19: 0f 85 cc 04 00 00 jne 0x4eb 1f: 49 8b 6f 08 mov 0x8(%r15),%rbp 23: 48 89 e8 mov %rbp,%rax 26: 48 c1 e8 03 shr $0x3,%rax 2a:* 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 0f 85 19 05 00 00 jne 0x54e 35: 48 89 5d 00 mov %rbx,0x0(%rbp) 39: 48 85 db test %rbx,%rbx 3c: 74 1a je 0x58 3e: 48 rex.W 3f: 8d .byte 0x8d Code starting with the faulting instruction =========================================== 0: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 5: 0f 85 19 05 00 00 jne 0x524 b: 48 89 5d 00 mov %rbx,0x0(%rbp) f: 48 85 db test %rbx,%rbx 12: 74 1a je 0x2e 14: 48 rex.W 15: 8d .byte 0x8d [ 414.646239][ T3320] RSP: 0018:ffffc90000dfee30 EFLAGS: 00010a06 [ 414.646413][ T3320] RAX: 1bd5a00000000024 RBX: 0000000000000000 RCX: 1ffffffff2cbc70e [ 414.646619][ T3320] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888005dfe408 [ 414.646830][ T3320] RBP: dead000000000122 R08: 0000000000000001 R09: fffffbfff2cb99cb [ 414.647042][ T3320] R10: ffffffff965cce5f R11: ffffc90000dfea41 R12: ffff888005dfe53c [ 414.647253][ T3320] R13: dffffc0000000000 R14: ffff88800549c000 R15: ffff888005dfe400 [ 414.647468][ T3320] FS: 00007f31f8c29800(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000 [ 414.647706][ T3320] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 414.647889][ T3320] CR2: 00000000004e2a98 CR3: 0000000003e38003 CR4: 0000000000772ef0 [ 414.648100][ T3320] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 414.648307][ T3320] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 414.648516][ T3320] PKRU: 55555554 [ 414.648623][ T3320] Call Trace: [ 414.648730][ T3320] [ 414.648806][ T3320] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [ 414.648923][ T3320] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) [ 414.649066][ T3320] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) [ 414.649208][ T3320] ? neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) [ 414.649347][ T3320] ? lock_acquire (kernel/locking/lockdep.c:5798) [ 414.649490][ T3320] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) [ 414.649632][ T3320] neigh_ifdown (net/core/neighbour.c:445) [ 414.649739][ T3320] rt6_disable_ip (net/ipv6/route.c:4912) [ 414.649886][ T3320] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4912) [ 414.650045][ T3320] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 414.650186][ T3320] addrconf_ifdown.isra.0 (./include/net/addrconf.h:330 net/ipv6/addrconf.c:3860) [ 414.650325][ T3320] ? __try_to_del_timer_sync (kernel/time/timer.c:1499) [ 414.650466][ T3320] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3845) [ 414.650639][ T3320] addrconf_notify (net/ipv6/addrconf.c:3815) [ 414.650776][ T3320] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 414.650917][ T3320] __dev_notify_flags (net/core/dev.c:8994) [ 414.651055][ T3320] ? __pfx___dev_notify_flags (net/core/dev.c:8981) [ 414.651194][ T3320] ? __dev_change_flags (./include/linux/list.h:111 ./include/linux/list.h:215 ./include/linux/list.h:229 net/core/dev.c:1573 net/core/dev.c:8948) [ 414.651333][ T3320] ? __pfx___dev_change_flags (net/core/dev.c:8914) [ 414.651481][ T3320] dev_change_flags (net/core/dev.c:9029) [ 414.651619][ T3320] do_setlink (net/core/rtnetlink.c:2975) [ 414.651762][ T3320] ? is_bpf_text_address (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 kernel/bpf/core.c:769) [ 414.651900][ T3320] ? __pfx_do_setlink (net/core/rtnetlink.c:2853) [ 414.652036][ T3320] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 414.652177][ T3320] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 414.652318][ T3320] ? __kernel_text_address (kernel/extable.c:79) [ 414.652455][ T3320] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 414.652593][ T3320] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 414.652762][ T3320] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 414.652905][ T3320] ? stack_trace_save (kernel/stacktrace.c:123) [ 414.653044][ T3320] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 414.653180][ T3320] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 414.653322][ T3320] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) [ 414.653429][ T3320] ? kasan_save_stack (mm/kasan/common.c:49) [ 414.653566][ T3320] ? kasan_save_stack (mm/kasan/common.c:48) [ 414.653703][ T3320] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 414.653839][ T3320] ? __kasan_kmalloc (mm/kasan/common.c:398) [ 414.653976][ T3320] ? rtnl_newlink (./include/linux/slab.h:878 net/core/rtnetlink.c:3814) [ 414.654113][ T3320] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) [ 414.654250][ T3320] ? netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 414.654391][ T3320] ? netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 414.654531][ T3320] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) [ 414.654669][ T3320] ? ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) [ 414.654808][ T3320] ? ___sys_sendmsg (net/socket.c:2663) [ 414.654949][ T3320] __rtnl_newlink (net/core/rtnetlink.c:3771) [ 414.655088][ T3320] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 414.655227][ T3320] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3632) [ 414.655363][ T3320] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 414.655534][ T3320] ? __create_object (mm/kmemleak.c:766) [ 414.655678][ T3320] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 414.655820][ T3320] rtnl_newlink (net/core/rtnetlink.c:3819) [ 414.655926][ T3320] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) [ 414.656062][ T3320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) [ 414.656197][ T3320] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 414.656334][ T3320] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) [ 414.656440][ T3320] ? __lock_acquire (kernel/locking/lockdep.c:5202) [ 414.656576][ T3320] netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 414.656714][ T3320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) [ 414.656855][ T3320] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) [ 414.656998][ T3320] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 414.657135][ T3320] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 414.657271][ T3320] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 414.657408][ T3320] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 414.657549][ T3320] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 414.657687][ T3320] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 414.657825][ T3320] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 414.657966][ T3320] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) [ 414.658104][ T3320] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) [ 414.658245][ T3320] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) [ 414.658383][ T3320] ? __pfx_____sys_sendmsg (net/socket.c:2553) [ 414.658518][ T3320] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) [ 414.658691][ T3320] ___sys_sendmsg (net/socket.c:2663) [ 414.658829][ T3320] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 414.658966][ T3320] ? __pfx____sys_sendmsg (net/socket.c:2650) [ 414.659108][ T3320] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 414.659247][ T3320] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) [ 414.659419][ T3320] ? kasan_save_stack (mm/kasan/common.c:49) [ 414.659554][ T3320] ? kasan_save_stack (mm/kasan/common.c:48) [ 414.659688][ T3320] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) [ 414.659828][ T3320] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:123 kernel/rcu/tree.c:3087) [ 414.660000][ T3320] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) [ 414.660142][ T3320] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 414.660285][ T3320] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 414.660455][ T3320] ? __lock_acquire (kernel/locking/lockdep.c:5202) [ 414.660596][ T3320] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 414.660735][ T3320] ? __lock_release (kernel/locking/lockdep.c:5501) [ 414.660871][ T3320] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) [ 414.660979][ T3320] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) [ 414.661123][ T3320] ? __pfx___sys_sendmsg (net/socket.c:2678) [ 414.661261][ T3320] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) [ 414.661409][ T3320] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 414.661560][ T3320] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 414.661731][ T3320] RIP: 0033:0x7f31f8e357b7 [ 414.661883][ T3320] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 414.662371][ T3320] RSP: 002b:00007ffc5be84268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 414.662582][ T3320] RAX: ffffffffffffffda RBX: 00007ffc5be84990 RCX: 00007f31f8e357b7 [ 414.662789][ T3320] RDX: 0000000000000000 RSI: 00007ffc5be842d0 RDI: 0000000000000005 [ 414.662997][ T3320] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 414.663201][ T3320] R10: 00007f31f8cf3ef8 R11: 0000000000000246 R12: 0000000000000003 Finger prints: neigh_ifdown:rt6_disable_ip:addrconf_notify:notifier_call_chain:__dev_notify_flags