====================================== | [ 28.122039][ T267] 1 lock held by ip/267: | [ 28.122162][ T267] #0: ffffffff9efbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 28.123493][ T267] | [ 28.123493][ T267] stack backtrace: [ 28.123956][ T267] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.124325][ T267] Call Trace: [ 28.124463][ T267] [ 28.124553][ T267] dump_stack_lvl (lib/dump_stack.c:122) [ 28.124847][ T267] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 28.125017][ T267] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 28.125299][ T267] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 28.125543][ T267] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 28.125741][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.125950][ T267] br_add_if (net/bridge/br_if.c:692) bridge [ 28.126158][ T267] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 28.126331][ T267] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 28.126541][ T267] do_setlink (net/core/rtnetlink.c:2907) [ 28.126714][ T267] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 28.126886][ T267] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 28.127055][ T267] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 28.127219][ T267] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 28.127387][ T267] ? __kernel_text_address (kernel/extable.c:79) [ 28.127561][ T267] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 28.127730][ T267] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 28.127942][ T267] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 28.128123][ T267] ? stack_trace_save (kernel/stacktrace.c:123) [ 28.128290][ T267] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 28.128458][ T267] ? __pfx_validate_nla (lib/nlattr.c:396) [ 28.128748][ T267] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 28.128878][ T267] ? kasan_save_stack (mm/kasan/common.c:49) [ 28.129052][ T267] ? __nla_validate_parse (lib/nlattr.c:638) [ 28.129230][ T267] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 28.129406][ T267] ? 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:227) [ 28.129574][ T267] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 28.129744][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.129953][ T267] ? __create_object (mm/kmemleak.c:751) [ 28.130127][ T267] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 28.130300][ T267] rtnl_newlink (net/core/rtnetlink.c:3744) [ 28.130429][ T267] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 28.130602][ T267] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 28.130777][ T267] ? 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:227) [ 28.130943][ T267] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 28.131073][ T267] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 28.131240][ T267] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 28.131407][ T267] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 28.131577][ T267] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 28.131761][ T267] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 28.131927][ T267] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 28.132097][ T267] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 28.132274][ T267] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 28.132441][ T267] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 28.132611][ T267] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 28.132783][ T267] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 28.132950][ T267] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 28.133123][ T267] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 28.133311][ T267] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 28.133483][ T267] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 28.133654][ T267] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 28.133924][ T267] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 28.134103][ T267] ___sys_sendmsg (net/socket.c:2653) [ 28.134281][ T267] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 28.134465][ T267] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 28.134639][ T267] ? __lock_release (kernel/locking/lockdep.c:5435) [ 28.134803][ T267] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 28.135014][ T267] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 28.135190][ T267] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 28.135365][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.135575][ T267] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 28.135755][ T267] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 28.135924][ T267] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 28.136091][ T267] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 28.136279][ T267] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 28.136452][ T267] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.136671][ T267] RIP: 0033:0x7f18c30317b7 [ 28.136844][ T267] 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) [ 28.137416][ T267] RSP: 002b:00007ffdc1464468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 28.137665][ T267] RAX: ffffffffffffffda RBX: 00007ffdc1464b90 RCX: 00007f18c30317b7 [ 28.137916][ T267] RDX: 0000000000000000 RSI: 00007ffdc14644d0 RDI: 0000000000000005 [ 28.138164][ T267] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 28.138411][ T267] R10: 0000000030770910 R11: 0000000000000246 R12: 0000000000000004 [ 28.138668][ T267] R13: 0000000066bea7cd R14: 0000000000496600 R15: 0000000000000000 | [ 28.140689][ T267] 1 lock held by ip/267: | [ 28.140820][ T267] #0: ffffffff9efbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 28.141126][ T267] | [ 28.141126][ T267] stack backtrace: [ 28.141591][ T267] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.141963][ T267] Call Trace: [ 28.142090][ T267] [ 28.142179][ T267] dump_stack_lvl (lib/dump_stack.c:122) [ 28.142362][ T267] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 28.142534][ T267] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 28.142784][ T267] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge [ 28.143029][ T267] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 28.143225][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.143438][ T267] br_add_if (net/bridge/br_if.c:692) bridge [ 28.143636][ T267] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 28.143807][ T267] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 28.144029][ T267] do_setlink (net/core/rtnetlink.c:2907) [ 28.144200][ T267] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 28.144379][ T267] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 28.144549][ T267] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 28.144723][ T267] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 28.144896][ T267] ? __kernel_text_address (kernel/extable.c:79) [ 28.145061][ T267] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 28.145226][ T267] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 28.145444][ T267] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 28.145626][ T267] ? stack_trace_save (kernel/stacktrace.c:123) [ 28.145793][ T267] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 28.145961][ T267] ? __pfx_validate_nla (lib/nlattr.c:396) [ 28.146128][ T267] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 28.146257][ T267] ? kasan_save_stack (mm/kasan/common.c:49) [ 28.146431][ T267] ? __nla_validate_parse (lib/nlattr.c:638) [ 28.146604][ T267] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 28.146780][ T267] ? 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:227) [ 28.146951][ T267] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 28.147123][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.147330][ T267] ? __create_object (mm/kmemleak.c:751) [ 28.147498][ T267] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 28.147670][ T267] rtnl_newlink (net/core/rtnetlink.c:3744) [ 28.147955][ T267] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 28.148121][ T267] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 28.148287][ T267] ? 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:227) [ 28.148556][ T267] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 28.148691][ T267] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 28.148964][ T267] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 28.149131][ T267] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 28.149301][ T267] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 28.149484][ T267] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 28.149651][ T267] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 28.149822][ T267] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 28.149996][ T267] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 28.150163][ T267] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 28.150428][ T267] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 28.150601][ T267] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 28.150766][ T267] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 28.151038][ T267] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 28.151213][ T267] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 28.151383][ T267] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 28.151552][ T267] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 28.151758][ T267] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 28.151937][ T267] ___sys_sendmsg (net/socket.c:2653) [ 28.152201][ T267] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 28.152471][ T267] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 28.152652][ T267] ? __lock_release (kernel/locking/lockdep.c:5435) [ 28.152836][ T267] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 28.153154][ T267] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 28.153338][ T267] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 28.153524][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.153848][ T267] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 28.154129][ T267] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 28.154320][ T267] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 28.154502][ T267] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 28.154702][ T267] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 28.154983][ T267] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.155210][ T267] RIP: 0033:0x7f18c30317b7 [ 28.155401][ T267] 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) [ 28.156133][ T267] RSP: 002b:00007ffdc1464468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 28.156508][ T267] RAX: ffffffffffffffda RBX: 00007ffdc1464b90 RCX: 00007f18c30317b7 [ 28.156784][ T267] RDX: 0000000000000000 RSI: 00007ffdc14644d0 RDI: 0000000000000005 [ 28.157050][ T267] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 28.157349][ T267] R10: 0000000030770910 R11: 0000000000000246 R12: 0000000000000004 [ 28.157817][ T267] R13: 0000000066bea7cd R14: 0000000000496600 R15: 0000000000000000 | [ 28.160183][ T267] 1 lock held by ip/267: | [ 28.160335][ T267] #0: ffffffff9efbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) | [ 28.160667][ T267] | [ 28.160667][ T267] stack backtrace: [ 28.161357][ T267] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.161746][ T267] Call Trace: [ 28.161884][ T267] [ 28.162075][ T267] dump_stack_lvl (lib/dump_stack.c:122) [ 28.162265][ T267] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) [ 28.162447][ T267] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge [ 28.162714][ T267] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge [ 28.163077][ T267] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge [ 28.163292][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.163520][ T267] br_add_if (net/bridge/br_if.c:692) bridge [ 28.163742][ T267] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 28.164017][ T267] ? netdev_master_upper_dev_get (net/core/dev.c:7102) [ 28.164245][ T267] do_setlink (net/core/rtnetlink.c:2907) [ 28.164437][ T267] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) [ 28.164621][ T267] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) [ 28.164894][ T267] ? is_bpf_text_address (./kernel/bpf/core.c:772) [ 28.165073][ T267] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 28.165255][ T267] ? __kernel_text_address (kernel/extable.c:79) [ 28.165438][ T267] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 28.165714][ T267] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 28.165938][ T267] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 28.166131][ T267] ? stack_trace_save (kernel/stacktrace.c:123) [ 28.166311][ T267] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 28.166589][ T267] ? __pfx_validate_nla (lib/nlattr.c:396) [ 28.166768][ T267] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 28.166908][ T267] ? kasan_save_stack (mm/kasan/common.c:49) [ 28.167091][ T267] ? __nla_validate_parse (lib/nlattr.c:638) [ 28.167278][ T267] __rtnl_newlink (net/core/rtnetlink.c:3696) [ 28.167577][ T267] ? 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:227) [ 28.167763][ T267] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) [ 28.167949][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.168175][ T267] ? __create_object (mm/kmemleak.c:751) [ 28.168460][ T267] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 28.168646][ T267] rtnl_newlink (net/core/rtnetlink.c:3744) [ 28.168784][ T267] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) [ 28.168965][ T267] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 28.169147][ T267] ? 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:227) [ 28.169327][ T267] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 28.169468][ T267] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 28.169749][ T267] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 28.169932][ T267] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) [ 28.170216][ T267] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) [ 28.170414][ T267] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) [ 28.170597][ T267] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 28.170780][ T267] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 28.170963][ T267] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 28.171142][ T267] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 28.171326][ T267] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 28.171721][ T267] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 28.171913][ T267] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) [ 28.172099][ T267] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 28.172292][ T267] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) [ 28.172582][ T267] ? __pfx_____sys_sendmsg (net/socket.c:2543) [ 28.172763][ T267] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) [ 28.172980][ T267] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [ 28.173173][ T267] ___sys_sendmsg (net/socket.c:2653) [ 28.173352][ T267] ? __pfx____sys_sendmsg (net/socket.c:2640) [ 28.173639][ T267] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 28.173823][ T267] ? __lock_release (kernel/locking/lockdep.c:5435) [ 28.174000][ T267] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) [ 28.174222][ T267] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 28.174513][ T267] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 28.174704][ T267] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 28.174952][ T267] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 28.175143][ T267] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) [ 28.175419][ T267] ? __pfx___sys_sendmsg (net/socket.c:2668) [ 28.175601][ T267] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) [ 28.175812][ T267] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 28.176096][ T267] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.176322][ T267] RIP: 0033:0x7f18c30317b7 [ 28.176519][ T267] 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) [ 28.177241][ T267] RSP: 002b:00007ffdc1464468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 28.177623][ T267] RAX: ffffffffffffffda RBX: 00007ffdc1464b90 RCX: 00007f18c30317b7 [ 28.177889][ T267] RDX: 0000000000000000 RSI: 00007ffdc14644d0 RDI: 0000000000000005 [ 28.178163][ T267] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 28.178526][ T267] R10: 0000000030770910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink