====================================== | [ 96.251432][ T594] ================================================================== | [ 96.251765][ T594] 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) | [ 96.252109][ T594] Write of size 8 at addr 0000000000000000 by task ip/594 | [ 96.252371][ T594] [ 96.252480][ T594] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 96.252482][ T594] Call Trace: [ 96.252484][ T594] [ 96.252486][ T594] dump_stack_lvl (lib/dump_stack.c:123) [ 96.252494][ T594] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 96.252497][ T594] kasan_report (mm/kasan/report.c:597) [ 96.252504][ T594] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 96.252509][ T594] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 96.252513][ T594] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 96.252518][ T594] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 96.252521][ T594] ? enable_delayed_work (kernel/workqueue.c:4359) [ 96.252525][ T594] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 96.252528][ T594] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 96.252535][ T594] __cancel_work_sync (kernel/workqueue.c:4383) [ 96.252539][ T594] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 96.252548][ T594] ? netdev_notify_peers (net/core/dev.c:1891) [ 96.252552][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.252560][ T594] netif_close_many (net/core/dev.c:1959) [ 96.252564][ T594] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 96.252571][ T594] ? __dev_close_many (net/core/dev.c:1949) [ 96.252575][ T594] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 96.252578][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.252584][ T594] __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) [ 96.252591][ T594] ? default_device_exit_batch (net/core/dev.c:12662) [ 96.252594][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.252598][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.252603][ T594] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 96.252607][ T594] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 96.252615][ T594] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 96.252621][ T594] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 96.252625][ T594] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 96.252631][ T594] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 96.252636][ T594] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 96.252641][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.252646][ T594] ? __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) [ 96.252650][ T594] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 96.252653][ T594] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 96.252658][ T594] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 96.252661][ T594] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 96.252664][ T594] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 96.252668][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.252671][ T594] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 96.252674][ T594] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 96.252677][ T594] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 96.252683][ T594] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 96.252688][ T594] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 96.252693][ T594] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 96.252696][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.252702][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.252706][ T594] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 96.252708][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.252712][ T594] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 96.252715][ T594] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 96.252719][ T594] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 96.252722][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.252729][ T594] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 96.252734][ T594] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 96.252737][ T594] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 96.252744][ T594] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 96.252747][ T594] ? 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) [ 96.252751][ T594] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 96.252755][ T594] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 96.252759][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.252764][ T594] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 96.252769][ T594] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 96.252772][ T594] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 96.252779][ T594] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 96.252782][ T594] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 96.252788][ T594] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 96.252791][ T594] ? __copy_msghdr (net/socket.c:2556) [ 96.252798][ T594] ___sys_sendmsg (net/socket.c:2686) [ 96.252801][ T594] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 96.252804][ T594] ? __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) [ 96.252810][ T594] ? copy_msghdr_from_user (net/socket.c:2673) [ 96.252815][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.252819][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.252825][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.252828][ T594] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 96.252834][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.252840][ T594] __sys_sendmsg (net/socket.c:2716) [ 96.252843][ T594] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 96.252847][ T594] ? __sys_sendmsg_sock (net/socket.c:2701) [ 96.252855][ T594] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 96.252859][ T594] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 96.252865][ T594] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 96.252869][ T594] RIP: 0033:0x7fd6ea93c1d7 [ 96.252873][ T594] 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) [ 96.252876][ T594] RSP: 002b:00007fffa14f82b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 96.252880][ T594] RAX: ffffffffffffffda RBX: 00007fffa14f89e0 RCX: 00007fd6ea93c1d7 [ 96.252882][ T594] RDX: 0000000000000000 RSI: 00007fffa14f8320 RDI: 0000000000000005 [ 96.252884][ T594] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 96.252886][ T594] R10: 00007fd6ea838f60 R11: 0000000000000246 R12: 0000000000000004 [ 96.252888][ T594] R13: 00000000691cc2f1 R14: 0000000000499600 R15: 0000000000000000 | [ 96.274001][ T594] #PF: error_code(0x0002) - not-present page | [ 96.274225][ T594] PGD 155ec067 P4D 155ec067 PUD 93e2067 PMD 0 | [ 96.274562][ T594] Oops: Oops: 0002 [#1] SMP KASAN | [ 96.275097][ T594] Tainted: [B]=BAD_PAGE [ 96.275236][ T594] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 96.275564][ T594] 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) [ 96.275795][ T594] 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 [ 96.276545][ T594] RSP: 0018:ffffc90000a06dd0 EFLAGS: 00010046 [ 96.276772][ T594] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa244090a [ 96.277144][ T594] RDX: fffffbfff4ccf2cd RSI: 0000000000000008 RDI: ffffffffa6679660 [ 96.277412][ T594] RBP: ffffc90000a06e38 R08: 0000000000000001 R09: fffffbfff4ccf2cc [ 96.277675][ T594] R10: ffffffffa6679667 R11: ffffc90000a068c0 R12: 0000000000000000 [ 96.278049][ T594] R13: 0000000000000282 R14: ffff88800ffb9000 R15: dffffc0000000000 [ 96.278313][ T594] FS: 00007fd6ea76e800(0000) GS:ffff88808fbf2000(0000) knlGS:0000000000000000 [ 96.278732][ T594] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.278954][ T594] CR2: 0000000000000000 CR3: 00000000104d1002 CR4: 0000000000772ef0 [ 96.279220][ T594] PKRU: 55555554 [ 96.279360][ T594] Call Trace: [ 96.279601][ T594] [ 96.279693][ T594] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 96.279873][ T594] ? enable_delayed_work (kernel/workqueue.c:4359) [ 96.280054][ T594] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 96.280229][ T594] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 96.280406][ T594] __cancel_work_sync (kernel/workqueue.c:4383) [ 96.280585][ T594] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 96.280761][ T594] ? netdev_notify_peers (net/core/dev.c:1891) [ 96.281042][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.281218][ T594] netif_close_many (net/core/dev.c:1959) [ 96.281398][ T594] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 96.281574][ T594] ? __dev_close_many (net/core/dev.c:1949) [ 96.281851][ T594] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 96.282029][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.282206][ T594] __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) [ 96.282427][ T594] ? default_device_exit_batch (net/core/dev.c:12662) [ 96.282747][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.282928][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.283104][ T594] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 96.283283][ T594] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 96.283563][ T594] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 96.283740][ T594] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 96.283917][ T594] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 96.284095][ T594] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 96.284391][ T594] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 96.284573][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.284754][ T594] ? __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) [ 96.284930][ T594] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 96.285210][ T594] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 96.285387][ T594] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 96.285560][ T594] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 96.285736][ T594] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 96.286022][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.286197][ T594] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 96.286370][ T594] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 96.286546][ T594] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 96.286824][ T594] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 96.287000][ T594] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 96.287179][ T594] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 96.287353][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.287637][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.287813][ T594] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 96.287986][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.288162][ T594] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 96.288439][ T594] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 96.288618][ T594] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 96.288791][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.288970][ T594] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 96.289253][ T594] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 96.289428][ T594] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 96.289604][ T594] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 96.289781][ T594] ? 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) [ 96.290059][ T594] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 96.290235][ T594] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 96.290409][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.290593][ T594] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 96.290871][ T594] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 96.291045][ T594] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 96.291229][ T594] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 96.291404][ T594] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 96.291683][ T594] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 96.291907][ T594] ? __copy_msghdr (net/socket.c:2556) [ 96.292084][ T594] ___sys_sendmsg (net/socket.c:2686) [ 96.292264][ T594] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 96.292550][ T594] ? __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) [ 96.292767][ T594] ? copy_msghdr_from_user (net/socket.c:2673) [ 96.292944][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.293221][ T594] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 96.293399][ T594] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 96.293573][ T594] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 96.293787][ T594] ? __lock_release (kernel/locking/lockdep.c:5536) [ 96.294075][ T594] __sys_sendmsg (net/socket.c:2716) [ 96.294267][ T594] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 96.294490][ T594] ? __sys_sendmsg_sock (net/socket.c:2701) [ 96.294666][ T594] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 96.294947][ T594] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 96.295119][ T594] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 96.295336][ T594] RIP: 0033:0x7fd6ea93c1d7 [ 96.295524][ T594] 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) [ 96.296281][ T594] RSP: 002b:00007fffa14f82b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 96.296659][ T594] RAX: ffffffffffffffda RBX: 00007fffa14f89e0 RCX: 00007fd6ea93c1d7 [ 96.296927][ T594] RDX: 0000000000000000 RSI: 00007fffa14f8320 RDI: 0000000000000005 [ 96.297191][ T594] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 96.297563][ T594] R10: 00007fd6ea838f60 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