====================================== | [ 355.619589][ T8141] br11: port 1(veth1.11) entered blocking state | [ 355.619845][ T8141] br11: port 1(veth1.11) entered forwarding state | [ 364.434142][ T8188] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN NOPTI | [ 364.434575][ T8188] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 364.435021][ T8188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 364.435188][ T8188] RIP: 0010:ets_class_leaf (net/sched/sch_ets.c:273) sch_ets [ 364.435377][ T8188] 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 [ 364.435867][ T8188] RSP: 0018:ffffc900004d7528 EFLAGS: 00010202 [ 364.436039][ T8188] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110015f245c [ 364.436253][ T8188] RDX: 0000000000000002 RSI: 0000000000000003 RDI: 0000000000000010 [ 364.436465][ T8188] RBP: ffff8880050d4000 R08: ffff8880107db82e R09: 0000000000000434 [ 364.436696][ T8188] R10: ffffc900004d7850 R11: 0000000000000002 R12: ffff88800af92000 [ 364.436897][ T8188] R13: 0000000000100003 R14: ffff8880107db81c R15: ffff8880107db800 [ 364.437098][ T8188] FS: 00007f9326d46800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000 [ 364.437344][ T8188] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 364.437514][ T8188] CR2: 000000002fa86000 CR3: 0000000010a14006 CR4: 0000000000772ef0 [ 364.437723][ T8188] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 364.437928][ T8188] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 364.438128][ T8188] PKRU: 55555554 [ 364.438241][ T8188] Call Trace: [ 364.438345][ T8188] [ 364.438416][ T8188] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [ 364.438540][ T8188] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) [ 364.438690][ T8188] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) [ 364.438841][ T8188] ? ets_class_leaf (net/sched/sch_ets.c:273) sch_ets [ 364.438976][ T8188] tc_modify_qdisc (net/sched/sch_api.c:1642) [ 364.439121][ T8188] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 37)) [ 364.439269][ T8188] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735) [ 364.439417][ T8188] ? __pfx_tc_modify_qdisc (net/sched/sch_api.c:1609) [ 364.439563][ T8188] rtnetlink_rcv_msg (net/core/rtnetlink.c:6920) [ 364.439706][ T8188] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6814) [ 364.439839][ T8188] ? 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) [ 364.439971][ T8188] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 364.440074][ T8188] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 364.440209][ T8188] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 364.440357][ T8188] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6814) [ 364.440524][ T8188] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 364.440679][ T8188] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 364.440812][ T8188] ? 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) [ 364.440967][ T8188] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 364.441103][ T8188] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 364.441247][ T8188] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 364.441382][ T8188] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 364.441517][ T8188] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 364.441658][ T8188] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2596) [ 364.441808][ T8188] ? __pfx_____sys_sendmsg (net/socket.c:2542) [ 364.441940][ T8188] ? __pfx_copy_msghdr_from_user (net/socket.c:2522) [ 364.442137][ T8188] ___sys_sendmsg (net/socket.c:2652) [ 364.442290][ T8188] ? __pfx____sys_sendmsg (net/socket.c:2639) [ 364.442436][ T8188] ? ___sys_recvmsg (net/socket.c:2848) [ 364.442576][ T8188] ? __pfx____sys_recvmsg (net/socket.c:2848) [ 364.442721][ T8188] ? 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) [ 364.442876][ T8188] ? 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) [ 364.443017][ T8188] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 364.443159][ T8188] ? __lock_release (kernel/locking/lockdep.c:5525) [ 364.443305][ T8188] __sys_sendmsg (net/socket.c:2682) [ 364.443445][ T8188] ? __pfx___sys_sendmsg (net/socket.c:2667) [ 364.443586][ T8188] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340) [ 364.443723][ T8188] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 364.443863][ T8188] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 364.444036][ T8188] RIP: 0033:0x7f932706e9a7 [ 364.444179][ T8188] 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) [ 364.444666][ T8188] RSP: 002b:00007ffd7171eca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 364.444868][ T8188] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f932706e9a7 [ 364.445066][ T8188] RDX: 0000000000000000 RSI: 00007ffd7171ed10 RDI: 0000000000000005 [ 364.445289][ T8188] RBP: 000000000047d8c0 R08: 0000000000000014 R09: 0000000000000000 [ 364.445495][ T8188] R10: 00007f9326f27708 R11: 0000000000000246 R12: 00007ffd7172eff0 Finger prints: ets_class_leaf:tc_modify_qdisc:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast