====================================== | [ 1379.095624][T12835] br11: port 1(veth1.11) entered blocking state | [ 1379.095938][T12835] br11: port 1(veth1.11) entered forwarding state | [ 1387.794503][T12882] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN NOPTI | [ 1387.794948][T12882] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 1387.795414][T12882] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [1387.795615][T12882] RIP: 0010:ets_class_leaf (net/sched/sch_ets.c:273) sch_ets [ 1387.795811][T12882] Code: 83 fe 10 77 53 48 8d 04 b6 48 c1 e0 04 48 8d 9c 03 00 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 21 48 8b 43 10 48 83 c4 08 5b c3 cc cc cc cc 31 db All code ======== 0: 83 fe 10 cmp $0x10,%esi 3: 77 53 ja 0x58 5: 48 8d 04 b6 lea (%rsi,%rsi,4),%rax 9: 48 c1 e0 04 shl $0x4,%rax d: 48 8d 9c 03 00 03 00 lea 0x300(%rbx,%rax,1),%rbx 14: 00 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 8d 7b 10 lea 0x10(%rbx),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx 2a:* 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 75 21 jne 0x51 30: 48 8b 43 10 mov 0x10(%rbx),%rax 34: 48 83 c4 08 add $0x8,%rsp 38: 5b pop %rbx 39: c3 ret 3a: cc int3 3b: cc int3 3c: cc int3 3d: cc int3 3e: 31 db xor %ebx,%ebx Code starting with the faulting instruction =========================================== 0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 4: 75 21 jne 0x27 6: 48 8b 43 10 mov 0x10(%rbx),%rax a: 48 83 c4 08 add $0x8,%rsp e: 5b pop %rbx f: c3 ret 10: cc int3 11: cc int3 12: cc int3 13: cc int3 14: 31 db xor %ebx,%ebx [ 1387.796336][T12882] RSP: 0018:ffffc900015b7528 EFLAGS: 00010202 [ 1387.796531][T12882] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11002434d5c [ 1387.796758][T12882] RDX: 0000000000000002 RSI: 0000000000000003 RDI: 0000000000000010 [ 1387.796978][T12882] RBP: ffff888008bb1000 R08: ffff8880103aa02e R09: 0000000000000434 [ 1387.797202][T12882] R10: ffffc900015b7850 R11: 0000000000000002 R12: ffff8880121a6800 [ 1387.797432][T12882] R13: 0000000000100003 R14: ffff8880103aa01c R15: ffff8880103aa000 [ 1387.797656][T12882] FS: 00007f4d3c1dc800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000 [ 1387.797922][T12882] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1387.798113][T12882] CR2: 000000001e909000 CR3: 00000000118a2004 CR4: 0000000000772ef0 [ 1387.798338][T12882] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1387.798566][T12882] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1387.798787][T12882] PKRU: 55555554 [ 1387.798903][T12882] Call Trace: [ 1387.799019][T12882] [1387.799097][T12882] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [1387.799216][T12882] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) [1387.799372][T12882] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) [1387.799532][T12882] ? ets_class_leaf (net/sched/sch_ets.c:273) sch_ets [1387.799684][T12882] tc_modify_qdisc (net/sched/sch_api.c:1642) [1387.799838][T12882] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 37)) [1387.800000][T12882] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735) [1387.800151][T12882] ? __pfx_tc_modify_qdisc (net/sched/sch_api.c:1609) [1387.800307][T12882] rtnetlink_rcv_msg (net/core/rtnetlink.c:6920) [1387.800462][T12882] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6814) [1387.800617][T12882] ? 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) [1387.800765][T12882] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [1387.800882][T12882] ? __lock_acquire (kernel/locking/lockdep.c:5226) [1387.801031][T12882] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [1387.801180][T12882] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6814) [1387.801331][T12882] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [1387.801486][T12882] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [1387.801640][T12882] ? 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) [1387.801792][T12882] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [1387.801941][T12882] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [1387.802091][T12882] ? find_held_lock (kernel/locking/lockdep.c:5339) [1387.802244][T12882] netlink_sendmsg (net/netlink/af_netlink.c:1892) [1387.802398][T12882] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [1387.802548][T12882] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2596) [1387.802713][T12882] ? __pfx_____sys_sendmsg (net/socket.c:2542) [1387.802859][T12882] ? __pfx_copy_msghdr_from_user (net/socket.c:2522) [1387.803051][T12882] ___sys_sendmsg (net/socket.c:2652) [1387.803201][T12882] ? __pfx____sys_sendmsg (net/socket.c:2639) [1387.803351][T12882] ? ___sys_recvmsg (net/socket.c:2848) [1387.803514][T12882] ? __pfx____sys_recvmsg (net/socket.c:2848) [1387.803663][T12882] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340) [1387.803816][T12882] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340) [1387.803965][T12882] ? find_held_lock (kernel/locking/lockdep.c:5339) [1387.804115][T12882] ? __lock_release (kernel/locking/lockdep.c:5525) [1387.804265][T12882] __sys_sendmsg (net/socket.c:2682) [1387.804414][T12882] ? __pfx___sys_sendmsg (net/socket.c:2667) [1387.804565][T12882] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [1387.804714][T12882] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1387.804877][T12882] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1387.805062][T12882] RIP: 0033:0x7f4d3c5049a7 [ 1387.805215][T12882] 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) [ 1387.805735][T12882] RSP: 002b:00007fffaea96de8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1387.805964][T12882] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4d3c5049a7 [ 1387.806188][T12882] RDX: 0000000000000000 RSI: 00007fffaea96e50 RDI: 0000000000000005 [ 1387.806412][T12882] RBP: 000000000047d8c0 R08: 0000000000000014 R09: 0000000000000000 [ 1387.806635][T12882] R10: 00007f4d3c3bd708 R11: 0000000000000246 R12: 00007fffaeaa7130 Finger prints: ets_class_leaf:tc_modify_qdisc:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast