====================================== | [ 54.892921][ T585] ================================================================== | [ 54.893323][ T585] BUG: KASAN: null-ptr-deref in try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) | [ 54.893654][ T585] Write of size 8 at addr 0000000000000000 by task ip/585 | [ 54.893917][ T585] [ 54.894041][ T585] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 54.894043][ T585] Call Trace: [ 54.894047][ T585] [ 54.894049][ T585] dump_stack_lvl (lib/dump_stack.c:123) [ 54.894057][ T585] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 54.894061][ T585] kasan_report (mm/kasan/report.c:597) [ 54.894067][ T585] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 54.894072][ T585] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 54.894076][ T585] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 54.894082][ T585] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 54.894087][ T585] ? enable_delayed_work (kernel/workqueue.c:4359) [ 54.894093][ T585] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 54.894097][ T585] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 54.894105][ T585] __cancel_work_sync (kernel/workqueue.c:4383) [ 54.894109][ T585] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 54.894115][ T585] ? netdev_notify_peers (net/core/dev.c:1891) [ 54.894119][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.894126][ T585] netif_close_many (net/core/dev.c:1959) [ 54.894130][ T585] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 54.894135][ T585] ? __dev_close_many (net/core/dev.c:1949) [ 54.894139][ T585] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 54.894142][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.894147][ T585] __dev_change_net_namespace (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1975 net/core/dev.c:1968 net/core/dev.c:12746) [ 54.894155][ T585] ? default_device_exit_batch (net/core/dev.c:12662) [ 54.894157][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.894161][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.894166][ T585] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 54.894170][ T585] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 54.894176][ T585] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 54.894184][ T585] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 54.894192][ T585] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 54.894200][ T585] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 54.894206][ T585] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 54.894211][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.894216][ T585] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) [ 54.894220][ T585] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 54.894223][ T585] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 54.894228][ T585] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 54.894231][ T585] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 54.894234][ T585] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 54.894238][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.894241][ T585] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 54.894247][ T585] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 54.894252][ T585] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 54.894262][ T585] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 54.894268][ T585] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 54.894273][ T585] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 54.894276][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.894282][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.894286][ T585] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 54.894288][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.894293][ T585] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 54.894296][ T585] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 54.894300][ T585] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 54.894303][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.894310][ T585] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 54.894315][ T585] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 54.894318][ T585] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 54.894325][ T585] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 54.894328][ T585] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 54.894332][ T585] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 54.894336][ T585] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 54.894340][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.894345][ T585] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 54.894350][ T585] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 54.894354][ T585] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 54.894360][ T585] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 54.894364][ T585] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 54.894370][ T585] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 54.894373][ T585] ? __copy_msghdr (net/socket.c:2556) [ 54.894380][ T585] ___sys_sendmsg (net/socket.c:2686) [ 54.894383][ T585] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 54.894386][ T585] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125) [ 54.894392][ T585] ? copy_msghdr_from_user (net/socket.c:2673) [ 54.894397][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.894402][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.894408][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.894411][ T585] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 54.894416][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.894422][ T585] __sys_sendmsg (net/socket.c:2716) [ 54.894425][ T585] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 54.894429][ T585] ? __sys_sendmsg_sock (net/socket.c:2701) [ 54.894436][ T585] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 54.894440][ T585] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 54.894446][ T585] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 54.894449][ T585] RIP: 0033:0x7ff473a471d7 [ 54.894454][ T585] Code: 0e 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: 0e (bad) 1: 00 f7 add %dh,%bh 3: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 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) [ 54.894457][ T585] RSP: 002b:00007ffd41a39638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.894461][ T585] RAX: ffffffffffffffda RBX: 00007ffd41a39d60 RCX: 00007ff473a471d7 [ 54.894463][ T585] RDX: 0000000000000000 RSI: 00007ffd41a396a0 RDI: 0000000000000005 [ 54.894465][ T585] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 54.894467][ T585] R10: 00007ff473943f60 R11: 0000000000000246 R12: 0000000000000004 [ 54.894468][ T585] R13: 00000000691cc68a R14: 0000000000499600 R15: 0000000000000000 | [ 54.914556][ T585] #PF: error_code(0x0002) - not-present page | [ 54.914781][ T585] PGD 10462067 P4D 10462067 PUD 93fe067 PMD 0 | [ 54.915016][ T585] Oops: Oops: 0002 [#1] SMP KASAN | [ 54.915579][ T585] Tainted: [B]=BAD_PAGE [ 54.915712][ T585] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 54.915948][ T585] RIP: 0010:try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 54.916199][ T585] Code: 00 41 89 c0 b8 01 00 00 00 45 85 c0 74 0f 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 be 08 00 00 00 48 89 df e8 7f 7f 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e All code ======== 0: 00 41 89 add %al,-0x77(%rcx) 3: c0 b8 01 00 00 00 45 sarb $0x45,0x1(%rax) a: 85 c0 test %eax,%eax c: 74 0f je 0x1d e: 48 83 c4 10 add $0x10,%rsp 12: 5b pop %rbx 13: 5d pop %rbp 14: 41 5c pop %r12 16: 41 5d pop %r13 18: 41 5e pop %r14 1a: 41 5f pop %r15 1c: c3 ret 1d: be 08 00 00 00 mov $0x8,%esi 22: 48 89 df mov %rbx,%rdi 25: e8 7f 7f 81 00 call 0x817fa9 2a:* f0 48 0f ba 2b 00 lock btsq $0x0,(%rbx) <-- trapping instruction 30: 72 11 jb 0x43 32: 48 83 c4 10 add $0x10,%rsp 36: 31 c0 xor %eax,%eax 38: 5b pop %rbx 39: 5d pop %rbp 3a: 41 5c pop %r12 3c: 41 5d pop %r13 3e: 41 5e pop %r14 Code starting with the faulting instruction =========================================== 0: f0 48 0f ba 2b 00 lock btsq $0x0,(%rbx) 6: 72 11 jb 0x19 8: 48 83 c4 10 add $0x10,%rsp c: 31 c0 xor %eax,%eax e: 5b pop %rbx f: 5d pop %rbp 10: 41 5c pop %r12 12: 41 5d pop %r13 14: 41 5e pop %r14 [ 54.916829][ T585] RSP: 0018:ffffc90001296dd0 EFLAGS: 00010046 [ 54.917076][ T585] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa404090a [ 54.917365][ T585] RDX: fffffbfff504f2cd RSI: 0000000000000008 RDI: ffffffffa8279660 [ 54.917632][ T585] RBP: ffffc90001296e38 R08: 0000000000000001 R09: fffffbfff504f2cc [ 54.917903][ T585] R10: ffffffffa8279667 R11: ffffc900012968c0 R12: 0000000000000000 [ 54.918193][ T585] R13: 0000000000000282 R14: ffff88800c061000 R15: dffffc0000000000 [ 54.918466][ T585] FS: 00007ff473879800(0000) GS:ffff8880884f2000(0000) knlGS:0000000000000000 [ 54.918779][ T585] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.919011][ T585] CR2: 0000000000000000 CR3: 000000000fe25006 CR4: 0000000000772ef0 [ 54.919298][ T585] PKRU: 55555554 [ 54.919437][ T585] Call Trace: [ 54.919574][ T585] [ 54.919674][ T585] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 54.919891][ T585] ? enable_delayed_work (kernel/workqueue.c:4359) [ 54.920085][ T585] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 54.920279][ T585] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 54.920457][ T585] __cancel_work_sync (kernel/workqueue.c:4383) [ 54.920639][ T585] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 54.920820][ T585] ? netdev_notify_peers (net/core/dev.c:1891) [ 54.921012][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.921326][ T585] netif_close_many (net/core/dev.c:1959) [ 54.921502][ T585] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 54.921682][ T585] ? __dev_close_many (net/core/dev.c:1949) [ 54.921863][ T585] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 54.922166][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.922355][ T585] __dev_change_net_namespace (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1975 net/core/dev.c:1968 net/core/dev.c:12746) [ 54.922579][ T585] ? default_device_exit_batch (net/core/dev.c:12662) [ 54.922915][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.923106][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.923293][ T585] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 54.923463][ T585] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 54.923747][ T585] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 54.923933][ T585] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 54.924129][ T585] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 54.924322][ T585] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 54.924608][ T585] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 54.924791][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.924980][ T585] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) [ 54.925170][ T585] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 54.925358][ T585] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 54.925537][ T585] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 54.925715][ T585] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 54.925904][ T585] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 54.926216][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.926395][ T585] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 54.926576][ T585] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 54.926754][ T585] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 54.927056][ T585] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 54.927247][ T585] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 54.927427][ T585] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 54.927600][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.927890][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.928077][ T585] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 54.928266][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.928437][ T585] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 54.928714][ T585] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 54.928899][ T585] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 54.929096][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.929294][ T585] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 54.929576][ T585] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 54.929773][ T585] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 54.929953][ T585] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 54.930145][ T585] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 54.930436][ T585] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 54.930625][ T585] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 54.930805][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.930985][ T585] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 54.931293][ T585] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 54.931463][ T585] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 54.931639][ T585] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 54.931816][ T585] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 54.932124][ T585] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 54.932358][ T585] ? __copy_msghdr (net/socket.c:2556) [ 54.932538][ T585] ___sys_sendmsg (net/socket.c:2686) [ 54.932717][ T585] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 54.933013][ T585] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125) [ 54.933243][ T585] ? copy_msghdr_from_user (net/socket.c:2673) [ 54.933420][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.933595][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 54.933897][ T585] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 54.934086][ T585] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 54.934278][ T585] ? __lock_release (kernel/locking/lockdep.c:5536) [ 54.934447][ T585] __sys_sendmsg (net/socket.c:2716) [ 54.934725][ T585] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 54.934953][ T585] ? __sys_sendmsg_sock (net/socket.c:2701) [ 54.935157][ T585] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 54.935344][ T585] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 54.935539][ T585] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 54.935754][ T585] RIP: 0033:0x7ff473a471d7 [ 54.935942][ T585] Code: 0e 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: 0e (bad) 1: 00 f7 add %dh,%bh 3: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 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) [ 54.936704][ T585] RSP: 002b:00007ffd41a39638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.937113][ T585] RAX: ffffffffffffffda RBX: 00007ffd41a39d60 RCX: 00007ff473a471d7 [ 54.937389][ T585] RDX: 0000000000000000 RSI: 00007ffd41a396a0 RDI: 0000000000000005 [ 54.937644][ T585] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 54.938023][ T585] R10: 00007ff473943f60 R11: 0000000000000246 R12: 0000000000000004 Finger prints: try_to_grab_pending:__cancel_work:__cancel_work_sync:__dev_close_many:netif_close_many kasan_report:kasan_check_range:try_to_grab_pending:__cancel_work:__cancel_work_sync