====================================== | [ 1087.181559][T10482] ================================================================== | [ 1087.181939][T10482] 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) | [ 1087.182278][T10482] Write of size 8 at addr 0000000000000000 by task ip/10482 | [ 1087.182559][T10482] [ 1087.182680][T10482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1087.182687][T10482] Call Trace: [ 1087.182691][T10482] [ 1087.182693][T10482] dump_stack_lvl (lib/dump_stack.c:123) [ 1087.182715][T10482] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 1087.182718][T10482] kasan_report (mm/kasan/report.c:597) [ 1087.182732][T10482] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 1087.182737][T10482] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 1087.182741][T10482] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 1087.182747][T10482] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 1087.182750][T10482] ? enable_delayed_work (kernel/workqueue.c:4359) [ 1087.182754][T10482] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 1087.182757][T10482] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 1087.182766][T10482] __cancel_work_sync (kernel/workqueue.c:4383) [ 1087.182770][T10482] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 1087.182784][T10482] ? netdev_notify_peers (net/core/dev.c:1891) [ 1087.182788][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.182799][T10482] netif_close_many (net/core/dev.c:1959) [ 1087.182803][T10482] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 1087.182820][T10482] ? __dev_close_many (net/core/dev.c:1949) [ 1087.182824][T10482] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 1087.182827][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.182833][T10482] __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) [ 1087.182841][T10482] ? default_device_exit_batch (net/core/dev.c:12662) [ 1087.182844][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.182848][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.182855][T10482] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 1087.182861][T10482] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 1087.182874][T10482] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 1087.182882][T10482] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 1087.182886][T10482] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 1087.182892][T10482] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 1087.182903][T10482] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 1087.182908][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.182913][T10482] ? __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) [ 1087.182917][T10482] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 1087.182920][T10482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 1087.182929][T10482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 1087.182932][T10482] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 1087.182936][T10482] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 1087.182940][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.182943][T10482] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 1087.182949][T10482] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 1087.182953][T10482] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 1087.182967][T10482] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 1087.182972][T10482] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 1087.182979][T10482] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 1087.182984][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.182993][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.182999][T10482] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 1087.183003][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.183008][T10482] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 1087.183012][T10482] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 1087.183015][T10482] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 1087.183018][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.183026][T10482] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 1087.183036][T10482] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 1087.183039][T10482] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 1087.183046][T10482] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 1087.183049][T10482] ? 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) [ 1087.183053][T10482] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 1087.183057][T10482] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 1087.183061][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.183067][T10482] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 1087.183072][T10482] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 1087.183075][T10482] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 1087.183089][T10482] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 1087.183093][T10482] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 1087.183104][T10482] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 1087.183107][T10482] ? __copy_msghdr (net/socket.c:2556) [ 1087.183114][T10482] ___sys_sendmsg (net/socket.c:2686) [ 1087.183118][T10482] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 1087.183121][T10482] ? __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) [ 1087.183128][T10482] ? copy_msghdr_from_user (net/socket.c:2673) [ 1087.183133][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.183138][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.183144][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.183147][T10482] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 1087.183160][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.183167][T10482] __sys_sendmsg (net/socket.c:2716) [ 1087.183172][T10482] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 1087.183178][T10482] ? __sys_sendmsg_sock (net/socket.c:2701) [ 1087.183190][T10482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 1087.183197][T10482] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 1087.183206][T10482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1087.183219][T10482] RIP: 0033:0x7f84de5811d7 [ 1087.183224][T10482] 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) [ 1087.183228][T10482] RSP: 002b:00007ffee5ae9618 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1087.183237][T10482] RAX: ffffffffffffffda RBX: 00007ffee5ae9d40 RCX: 00007f84de5811d7 [ 1087.183241][T10482] RDX: 0000000000000000 RSI: 00007ffee5ae9680 RDI: 0000000000000005 [ 1087.183243][T10482] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 1087.183247][T10482] R10: 00007f84de47df60 R11: 0000000000000246 R12: 0000000000000004 [ 1087.183249][T10482] R13: 00000000691cbd9f R14: 0000000000499600 R15: 0000000000000000 | [ 1087.213153][T10482] #PF: error_code(0x0002) - not-present page | [ 1087.213378][T10482] PGD 12ff0067 P4D 12ff0067 PUD 12f1f067 PMD 0 | [ 1087.213737][T10482] Oops: Oops: 0002 [#1] SMP KASAN | [ 1087.214351][T10482] Tainted: [B]=BAD_PAGE [ 1087.214616][T10482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1087.214853][T10482] 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) [ 1087.215197][T10482] 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 [ 1087.216540][T10482] RSP: 0018:ffffc90001f96dd0 EFLAGS: 00010046 [ 1087.216923][T10482] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa444090a [ 1087.217594][T10482] RDX: fffffbfff50cf2cd RSI: 0000000000000008 RDI: ffffffffa8679660 [ 1087.218071][T10482] RBP: ffffc90001f96e38 R08: 0000000000000001 R09: fffffbfff50cf2cc [ 1087.218725][T10482] R10: ffffffffa8679667 R11: ffffc90001f968c0 R12: 0000000000000000 [ 1087.219168][T10482] R13: 0000000000000282 R14: ffff8880100b4000 R15: dffffc0000000000 [ 1087.219655][T10482] FS: 00007f84de3b3800(0000) GS:ffff88808dbf2000(0000) knlGS:0000000000000000 [ 1087.220374][T10482] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1087.220754][T10482] CR2: 0000000000000000 CR3: 0000000012202003 CR4: 0000000000772ef0 [ 1087.221199][T10482] PKRU: 55555554 [ 1087.221466][T10482] Call Trace: [ 1087.221622][T10482] [ 1087.221716][T10482] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 1087.221902][T10482] ? enable_delayed_work (kernel/workqueue.c:4359) [ 1087.222106][T10482] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 1087.222403][T10482] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 1087.222596][T10482] __cancel_work_sync (kernel/workqueue.c:4383) [ 1087.222803][T10482] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 1087.223021][T10482] ? netdev_notify_peers (net/core/dev.c:1891) [ 1087.223317][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.223493][T10482] netif_close_many (net/core/dev.c:1959) [ 1087.223688][T10482] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 1087.223887][T10482] ? __dev_close_many (net/core/dev.c:1949) [ 1087.224180][T10482] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 1087.224372][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.224549][T10482] __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) [ 1087.224771][T10482] ? default_device_exit_batch (net/core/dev.c:12662) [ 1087.225141][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.225357][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.225539][T10482] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 1087.225822][T10482] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 1087.226013][T10482] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 1087.226196][T10482] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 1087.226396][T10482] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 1087.226681][T10482] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 1087.226883][T10482] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 1087.227073][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.227268][T10482] ? __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) [ 1087.227549][T10482] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 1087.227729][T10482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 1087.227920][T10482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 1087.228106][T10482] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 1087.228401][T10482] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 1087.228587][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.228785][T10482] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 1087.228958][T10482] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 1087.229382][T10482] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 1087.229688][T10482] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 1087.229978][T10482] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 1087.230271][T10482] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 1087.230767][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.231083][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.231372][T10482] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 1087.231666][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.232140][T10482] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 1087.232441][T10482] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 1087.232736][T10482] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 1087.233024][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.233514][T10482] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 1087.233824][T10482] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 1087.234119][T10482] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 1087.234414][T10482] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 1087.234910][T10482] ? 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) [ 1087.235201][T10482] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 1087.235496][T10482] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 1087.235786][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.236278][T10482] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 1087.236575][T10482] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 1087.236867][T10482] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 1087.237163][T10482] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 1087.237677][T10482] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 1087.237973][T10482] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 1087.238347][T10482] ? __copy_msghdr (net/socket.c:2556) [ 1087.238664][T10482] ___sys_sendmsg (net/socket.c:2686) [ 1087.238973][T10482] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 1087.239280][T10482] ? __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) [ 1087.239676][T10482] ? copy_msghdr_from_user (net/socket.c:2673) [ 1087.239989][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.240498][T10482] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 1087.240815][T10482] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 1087.241121][T10482] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 1087.241429][T10482] ? __lock_release (kernel/locking/lockdep.c:5536) [ 1087.241939][T10482] __sys_sendmsg (net/socket.c:2716) [ 1087.242236][T10482] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 1087.242621][T10482] ? __sys_sendmsg_sock (net/socket.c:2701) [ 1087.242942][T10482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 1087.243451][T10482] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 1087.243776][T10482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1087.244151][T10482] RIP: 0033:0x7f84de5811d7 [ 1087.244676][T10482] 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) [ 1087.245765][T10482] RSP: 002b:00007ffee5ae9618 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1087.246238][T10482] RAX: ffffffffffffffda RBX: 00007ffee5ae9d40 RCX: 00007f84de5811d7 [ 1087.246649][T10482] RDX: 0000000000000000 RSI: 00007ffee5ae9680 RDI: 0000000000000005 [ 1087.247249][T10482] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 1087.247710][T10482] R10: 00007f84de47df60 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