====================================== | [ 18.075751][ T282] ================================================================== | [ 18.076138][ T282] 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) | [ 18.076481][ T282] Write of size 8 at addr 0000000000000000 by task ip/282 | [ 18.076758][ T282] [ 18.076883][ T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.076886][ T282] Call Trace: [ 18.076888][ T282] [ 18.076890][ T282] dump_stack_lvl (lib/dump_stack.c:123) [ 18.076898][ T282] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 18.076902][ T282] kasan_report (mm/kasan/report.c:597) [ 18.076908][ T282] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 18.076914][ T282] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 18.076918][ T282] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 18.076922][ T282] ? page_pool_release (net/core/page_pool.c:1196) [ 18.076928][ T282] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 18.076931][ T282] ? enable_delayed_work (kernel/workqueue.c:4359) [ 18.076935][ T282] ? page_pool_release (net/core/page_pool.c:1196) [ 18.076938][ T282] ? page_pool_destroy (net/core/page_pool.c:1296) [ 18.076943][ T282] __cancel_work_sync (kernel/workqueue.c:4383) [ 18.076947][ T282] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 18.076952][ T282] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 18.076957][ T282] ? netdev_notify_peers (net/core/dev.c:1891) [ 18.076961][ T282] ? __dev_change_net_namespace (net/core/dev.c:1970 net/core/dev.c:12746) [ 18.076966][ T282] netif_close_many (net/core/dev.c:1959) [ 18.076969][ T282] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 18.076974][ T282] ? __dev_close_many (net/core/dev.c:1949) [ 18.076976][ T282] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 18.076983][ T282] __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) [ 18.076988][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.076993][ T282] ? default_device_exit_batch (net/core/dev.c:12662) [ 18.076997][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.077002][ T282] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746) [ 18.077006][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.077009][ T282] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 18.077013][ T282] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 18.077016][ T282] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 18.077020][ T282] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 18.077026][ T282] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 18.077036][ T282] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.077041][ T282] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 18.077048][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.077052][ T282] ? __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) [ 18.077056][ T282] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 18.077059][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 18.077064][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 18.077068][ T282] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 18.077071][ T282] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 18.077075][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.077078][ T282] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 18.077081][ T282] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 18.077086][ T282] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 18.077092][ T282] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 18.077098][ T282] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 18.077103][ T282] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 18.077108][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.077116][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.077122][ T282] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 18.077126][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.077130][ T282] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 18.077133][ T282] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 18.077138][ T282] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 18.077141][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.077147][ T282] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 18.077152][ T282] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 18.077156][ T282] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 18.077163][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 18.077165][ T282] ? 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) [ 18.077169][ T282] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 18.077173][ T282] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 18.077177][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.077182][ T282] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 18.077186][ T282] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 18.077189][ T282] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 18.077194][ T282] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 18.077197][ T282] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 18.077201][ T282] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 18.077204][ T282] ? __copy_msghdr (net/socket.c:2556) [ 18.077212][ T282] ___sys_sendmsg (net/socket.c:2686) [ 18.077214][ T282] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 18.077218][ T282] ? __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) [ 18.077225][ T282] ? copy_msghdr_from_user (net/socket.c:2673) [ 18.077231][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.077238][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.077244][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.077249][ T282] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 18.077256][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.077265][ T282] __sys_sendmsg (net/socket.c:2716) [ 18.077268][ T282] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 18.077271][ T282] ? __sys_sendmsg_sock (net/socket.c:2701) [ 18.077278][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 18.077283][ T282] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 18.077289][ T282] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 18.077293][ T282] RIP: 0033:0x7f11b167d1d7 [ 18.077297][ T282] 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) [ 18.077300][ T282] RSP: 002b:00007ffc298a80b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.077304][ T282] RAX: ffffffffffffffda RBX: 00007ffc298a87f0 RCX: 00007f11b167d1d7 [ 18.077306][ T282] RDX: 0000000000000000 RSI: 00007ffc298a8120 RDI: 0000000000000005 [ 18.077308][ T282] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 18.077310][ T282] R10: 00007f11b1579510 R11: 0000000000000246 R12: 0000000000000004 [ 18.077312][ T282] R13: 00000000691cda4e R14: 0000000000499600 R15: 0000000000000000 | [ 18.101224][ T282] #PF: error_code(0x0002) - not-present page | [ 18.101496][ T282] PGD 10af4067 P4D 10af4067 PUD 10af3067 PMD 0 | [ 18.101780][ T282] Oops: Oops: 0002 [#1] SMP KASAN | [ 18.102455][ T282] Tainted: [B]=BAD_PAGE [ 18.102621][ T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.102905][ T282] 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) [ 18.103185][ T282] 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 1f 93 82 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 1f 93 82 00 call 0x829349 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 [ 18.103963][ T282] RSP: 0018:ffffc90000be6dc0 EFLAGS: 00010046 [ 18.104242][ T282] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff98049b8a [ 18.104565][ T282] RDX: fffffbfff39acacd RSI: 0000000000000008 RDI: ffffffff9cd65660 [ 18.104902][ T282] RBP: ffffc90000be6e28 R08: 0000000000000001 R09: fffffbfff39acacc [ 18.105219][ T282] R10: ffffffff9cd65667 R11: ffffc90000be6880 R12: 0000000000000000 [ 18.105538][ T282] R13: 0000000000000286 R14: ffff88800eaf2000 R15: dffffc0000000000 [ 18.105875][ T282] FS: 00007f11b14af800(0000) GS:ffff8880d0307000(0000) knlGS:0000000000000000 [ 18.106242][ T282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.106521][ T282] CR2: 0000000000000000 CR3: 000000000b636001 CR4: 0000000000772ef0 [ 18.106860][ T282] PKRU: 55555554 [ 18.107013][ T282] Call Trace: [ 18.107179][ T282] [ 18.107290][ T282] ? page_pool_release (net/core/page_pool.c:1196) [ 18.107514][ T282] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 18.107727][ T282] ? enable_delayed_work (kernel/workqueue.c:4359) [ 18.107965][ T282] ? page_pool_release (net/core/page_pool.c:1196) [ 18.108178][ T282] ? page_pool_destroy (net/core/page_pool.c:1296) [ 18.108392][ T282] __cancel_work_sync (kernel/workqueue.c:4383) [ 18.108609][ T282] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 18.108828][ T282] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 18.109040][ T282] ? netdev_notify_peers (net/core/dev.c:1891) [ 18.109252][ T282] ? __dev_change_net_namespace (net/core/dev.c:1970 net/core/dev.c:12746) [ 18.109522][ T282] netif_close_many (net/core/dev.c:1959) [ 18.109738][ T282] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 18.109957][ T282] ? __dev_close_many (net/core/dev.c:1949) [ 18.110168][ T282] ? dev_getbyhwaddr_rcu (net/core/dev.c:10950) [ 18.110386][ T282] __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) [ 18.110661][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.110876][ T282] ? default_device_exit_batch (net/core/dev.c:12662) [ 18.111134][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.111345][ T282] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746) [ 18.111566][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.111783][ T282] ? rtnl_af_lookup (net/core/rtnetlink.c:2675) [ 18.112003][ T282] ? is_bpf_text_address (kernel/bpf/core.c:749) [ 18.112214][ T282] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 18.112433][ T282] do_setlink.constprop.0 (net/core/rtnetlink.c:3060) [ 18.112655][ T282] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 18.112878][ T282] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.113087][ T282] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 18.113296][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.113510][ T282] ? __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) [ 18.113723][ T282] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 18.113950][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 18.114163][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 18.114382][ T282] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 18.114600][ T282] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 18.114820][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.115024][ T282] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 18.115241][ T282] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 18.115453][ T282] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 18.115672][ T282] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 18.115899][ T282] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 18.116119][ T282] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 18.116333][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.116554][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.116777][ T282] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 18.116994][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.117211][ T282] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 18.117433][ T282] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 18.117647][ T282] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 18.117866][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.118085][ T282] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 18.118295][ T282] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 18.118511][ T282] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 18.118729][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 18.118958][ T282] ? 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) [ 18.119174][ T282] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 18.119391][ T282] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 18.119606][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.119825][ T282] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 18.120035][ T282] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 18.120247][ T282] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 18.120465][ T282] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 18.120676][ T282] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 18.120904][ T282] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 18.121166][ T282] ? __copy_msghdr (net/socket.c:2556) [ 18.121386][ T282] ___sys_sendmsg (net/socket.c:2686) [ 18.121605][ T282] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 18.121826][ T282] ? __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) [ 18.122092][ T282] ? copy_msghdr_from_user (net/socket.c:2673) [ 18.122307][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.122522][ T282] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.122744][ T282] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.122962][ T282] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 18.123177][ T282] ? __lock_release (kernel/locking/lockdep.c:5536) [ 18.123389][ T282] __sys_sendmsg (net/socket.c:2716) [ 18.123605][ T282] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 18.123876][ T282] ? __sys_sendmsg_sock (net/socket.c:2701) [ 18.124088][ T282] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 18.124298][ T282] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 18.124520][ T282] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 18.124785][ T282] RIP: 0033:0x7f11b167d1d7 [ 18.125007][ T282] 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) [ 18.125779][ T282] RSP: 002b:00007ffc298a80b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.126108][ T282] RAX: ffffffffffffffda RBX: 00007ffc298a87f0 RCX: 00007f11b167d1d7 [ 18.126439][ T282] RDX: 0000000000000000 RSI: 00007ffc298a8120 RDI: 0000000000000005 [ 18.126762][ T282] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078 [ 18.127080][ T282] R10: 00007f11b1579510 R11: 0000000000000246 R12: 0000000000000004 Finger prints: kasan_report:kasan_check_range:try_to_grab_pending:__cancel_work:__cancel_work_sync try_to_grab_pending:__cancel_work:__cancel_work_sync:__dev_close_many:netif_close_many