====================================== | 0 | xx__-> [ 20.512020][ T262] ------------[ cut here ]------------ | [ 20.512621][ T262] WARNING: CPU: 1 PID: 262 at net/netfilter/nf_tables_api.c:4780 nf_tables_fill_set_info (net/netfilter/nf_tables_api.c:4780 (discriminator 1)) nf_tables | [ 20.513369][ T262] Modules linked in: nf_tables [ 20.514358][ T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.514769][ T262] RIP: 0010:nf_tables_fill_set_info (net/netfilter/nf_tables_api.c:4780 (discriminator 1)) nf_tables [ 20.515282][ T262] Code: 00 00 00 48 8b 94 24 98 00 00 00 65 48 2b 15 67 74 53 f2 75 55 48 81 c4 a0 00 00 00 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc 90 <0f> 0b 90 e9 e0 fe ff ff 4c 89 e7 e8 58 ef b2 ed e9 31 ff ff ff b8 All code ======== 0: 00 00 add %al,(%rax) 2: 00 48 8b add %cl,-0x75(%rax) 5: 94 xchg %eax,%esp 6: 24 98 and $0x98,%al 8: 00 00 add %al,(%rax) a: 00 65 48 add %ah,0x48(%rbp) d: 2b 15 67 74 53 f2 sub -0xdac8b99(%rip),%edx # 0xfffffffff253747a 13: 75 55 jne 0x6a 15: 48 81 c4 a0 00 00 00 add $0xa0,%rsp 1c: 5b pop %rbx 1d: 5d pop %rbp 1e: 41 5c pop %r12 20: 41 5d pop %r13 22: 41 5e pop %r14 24: c3 ret 25: cc int3 26: cc int3 27: cc int3 28: cc int3 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: e9 e0 fe ff ff jmp 0xffffffffffffff12 32: 4c 89 e7 mov %r12,%rdi 35: e8 58 ef b2 ed call 0xffffffffedb2ef92 3a: e9 31 ff ff ff jmp 0xffffffffffffff70 3f: b8 .byte 0xb8 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: e9 e0 fe ff ff jmp 0xfffffffffffffee8 8: 4c 89 e7 mov %r12,%rdi b: e8 58 ef b2 ed call 0xffffffffedb2ef68 10: e9 31 ff ff ff jmp 0xffffffffffffff46 15: b8 .byte 0xb8 [ 20.516420][ T262] RSP: 0018:ffffc90000ad6fd8 EFLAGS: 00010216 [ 20.516818][ T262] RAX: 0000000000000024 RBX: 1ffff9200015adfb RCX: 0000000000000000 [ 20.517294][ T262] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 1ffff9200015adcf [ 20.517820][ T262] RBP: ffff888009f76200 R08: ffffffffc02f3543 R09: dffffc0000000000 [ 20.518327][ T262] R10: ffffffffc02f0672 R11: 0000000000000004 R12: ffffc90000ad7018 [ 20.518823][ T262] R13: ffff888004b058c0 R14: ffff888009f762c0 R15: ffff888009340070 [ 20.519312][ T262] FS: 00007f349349b340(0000) GS:ffff888083761000(0000) knlGS:0000000000000000 [ 20.520246][ T262] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.520724][ T262] CR2: 0000000002921588 CR3: 0000000008dba001 CR4: 0000000000772ef0 [ 20.521246][ T262] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.521768][ T262] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.522304][ T262] PKRU: 55555554 [ 20.522607][ T262] Call Trace: [ 20.522857][ T262] [ 20.523047][ T262] ? __pfx_nf_tables_fill_set_info (net/netfilter/nf_tables_api.c:4770) nf_tables [ 20.523503][ T262] ? find_held_lock (kernel/locking/lockdep.c:5348) [ 20.523830][ T262] ? nla_put (lib/nlattr.c:1100) [ 20.524095][ T262] nf_tables_fill_set (net/netfilter/nf_tables_api.c:4869) nf_tables [ 20.524556][ T262] ? __pfx_nf_tables_fill_set (net/netfilter/nf_tables_api.c:4791) nf_tables [ 20.524985][ T262] ? net_generic (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48) nf_tables [ 20.525355][ T262] nf_tables_dump_sets (net/netfilter/nf_tables_api.c:4973) nf_tables [ 20.525835][ T262] ? __build_skb_around (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 net/core/skbuff.c:381 net/core/skbuff.c:439) [ 20.526157][ T262] ? __pfx_nf_tables_dump_sets (net/netfilter/nf_tables_api.c:4933) nf_tables [ 20.526624][ T262] ? __alloc_skb (net/core/skbuff.c:685) [ 20.526956][ T262] netlink_dump (net/netlink/af_netlink.c:2309) [ 20.527288][ T262] ? find_held_lock (kernel/locking/lockdep.c:5348) [ 20.527622][ T262] ? __pfx_netlink_dump (net/netlink/af_netlink.c:2243) [ 20.527937][ T262] ? mark_held_locks (kernel/locking/lockdep.c:4326) [ 20.528262][ T262] ? netlink_lookup (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:522) [ 20.528604][ T262] ? nf_tables_dump_sets_start (net/netfilter/nf_tables_api.c:4998) nf_tables [ 20.529031][ T262] __netlink_dump_start (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/sock.h:1943 net/netlink/af_netlink.c:2426) [ 20.529373][ T262] nft_netlink_dump_start_rcu (./include/linux/netlink.h:340 net/netfilter/nf_tables_api.c:1255) nf_tables [ 20.529828][ T262] nf_tables_getset (net/netfilter/nf_tables_api.c:5045) nf_tables [ 20.530290][ T262] ? __pfx_nf_tables_getset (net/netfilter/nf_tables_api.c:5014) nf_tables [ 20.530758][ T262] ? __pfx_nf_tables_dump_sets_start (net/netfilter/nf_tables_api.c:4994) nf_tables [ 20.531257][ T262] ? __pfx_nf_tables_dump_sets (net/netfilter/nf_tables_api.c:4933) nf_tables [ 20.531683][ T262] ? __pfx_nf_tables_dump_sets_done (net/netfilter/nf_tables_api.c:5006) nf_tables [ 20.532108][ T262] ? __nla_validate_parse (./include/net/netlink.h:1287 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) [ 20.532444][ T262] nfnetlink_rcv_msg (net/netfilter/nfnetlink.c:290) [ 20.532769][ T262] ? __pfx_nfnetlink_rcv_msg (net/netfilter/nfnetlink.c:218) [ 20.533110][ T262] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 20.533445][ T262] ? __kernel_text_address (kernel/extable.c:79) [ 20.533764][ T262] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 20.534082][ T262] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 20.534528][ T262] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 20.534857][ T262] netlink_rcv_skb (net/netlink/af_netlink.c:2534) [ 20.535177][ T262] ? __pfx_nfnetlink_rcv_msg (net/netfilter/nfnetlink.c:218) [ 20.535502][ T262] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) [ 20.535834][ T262] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 20.536151][ T262] ? cap_capable (security/commoncap.c:132) [ 20.536485][ T262] nfnetlink_rcv (net/netfilter/nfnetlink.c:651) [ 20.536807][ T262] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) [ 20.537151][ T262] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) [ 20.537494][ T262] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 20.537818][ T262] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) [ 20.538145][ T262] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) [ 20.538502][ T262] ? __lock_acquire (kernel/locking/lockdep.c:5235) [ 20.538833][ T262] netlink_sendmsg (net/netlink/af_netlink.c:1883) [ 20.539156][ T262] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) [ 20.539480][ T262] ? __might_fault (mm/memory.c:7151 mm/memory.c:7145) [ 20.539804][ T262] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) [ 20.540124][ T262] __sys_sendto (net/socket.c:712 net/socket.c:727 net/socket.c:2180) [ 20.540465][ T262] ? __pfx___sys_sendto (net/socket.c:2147) [ 20.540786][ T262] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) [ 20.541103][ T262] ? find_held_lock (kernel/locking/lockdep.c:5348) [ 20.541443][ T262] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1488 arch/x86/mm/fault.c:1538) [ 20.541754][ T262] ? __lock_release (kernel/locking/lockdep.c:5534) [ 20.542068][ T262] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1488 arch/x86/mm/fault.c:1538) [ 20.542436][ T262] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mm.h:704 ./include/linux/mm.h:799 arch/x86/mm/fault.c:1339) [ 20.542756][ T262] __x64_sys_sendto (net/socket.c:2183) [ 20.543074][ T262] ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:198 arch/x86/entry/syscall_64.c:90) [ 20.543400][ T262] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) [ 20.543711][ T262] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 20.544025][ T262] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 20.544425][ T262] RIP: 0033:0x7f3493737a4a [ 20.544757][ T262] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 All code ======== 0: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 4: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax b: eb b8 jmp 0xffffffffffffffc5 d: 0f 1f 00 nopl (%rax) 10: f3 0f 1e fa endbr64 14: 41 89 ca mov %ecx,%r10d 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 15 jne 0x38 23: b8 2c 00 00 00 mov $0x2c,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 7e ja 0xb0 32: c3 ret 33: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 38: 41 54 push %r12 3a: 48 83 ec 30 sub $0x30,%rsp 3e: 44 rex.R 3f: 89 .byte 0x89 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 7e ja 0x86 8: c3 ret 9: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) e: 41 54 push %r12 10: 48 83 ec 30 sub $0x30,%rsp 14: 44 rex.R 15: 89 .byte 0x89 [ 20.545885][ T262] RSP: 002b:00007ffc5bc13428 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 20.546403][ T262] RAX: ffffffffffffffda RBX: 00007ffc5bc14560 RCX: 00007f3493737a4a [ 20.546886][ T262] RDX: 0000000000000014 RSI: 00007ffc5bc13490 RDI: 0000000000000005 [ 20.547356][ T262] RBP: 00007ffc5bc13480 R08: 00007f3493902200 R09: 000000000000000c [ 20.547835][ T262] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 Finger prints: nf_tables_fill_set_info:nf_tables_fill_set:nf_tables_dump_sets:netlink_dump:__netlink_dump_start