====================================== | [ 109.067682][ T2114] ================================================================== | [ 109.068040][ T2114] 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) | [ 109.068391][ T2114] Write of size 8 at addr 0000000000000000 by task ip/2114 | [ 109.068690][ T2114] [ 109.068802][ T2114] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 109.068808][ T2114] Call Trace: [ 109.068812][ T2114] [ 109.068814][ T2114] dump_stack_lvl (lib/dump_stack.c:123) [ 109.068833][ T2114] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 109.068836][ T2114] kasan_report (mm/kasan/report.c:597) [ 109.068844][ T2114] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 109.068850][ T2114] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 109.068853][ T2114] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 109.068858][ T2114] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 109.068862][ T2114] ? enable_delayed_work (kernel/workqueue.c:4359) [ 109.068866][ T2114] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 109.068869][ T2114] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 109.068878][ T2114] __cancel_work_sync (kernel/workqueue.c:4383) [ 109.068881][ T2114] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 109.068894][ T2114] ? netdev_notify_peers (net/core/dev.c:1891) [ 109.068898][ T2114] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 109.068907][ T2114] __dev_change_flags (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1945 net/core/dev.c:9924) [ 109.068910][ T2114] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 109.068919][ T2114] ? netif_set_allmulti (net/core/dev.c:9890) [ 109.068921][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.068929][ T2114] netif_change_flags (net/core/dev.c:9989) [ 109.068933][ T2114] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 109.068941][ T2114] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 109.068947][ T2114] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 109.068958][ T2114] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 109.068963][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.068968][ T2114] ? __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) [ 109.068973][ T2114] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 109.068976][ T2114] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.068981][ T2114] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.068984][ T2114] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 109.068988][ T2114] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 109.068999][ T2114] ? __create_object (mm/kmemleak.c:786) [ 109.069004][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.069008][ T2114] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 109.069011][ T2114] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 109.069014][ T2114] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 109.069022][ T2114] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 109.069028][ T2114] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 109.069033][ T2114] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.069036][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.069042][ T2114] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.069046][ T2114] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 109.069048][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.069053][ T2114] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.069056][ T2114] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 109.069059][ T2114] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.069062][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.069069][ T2114] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 109.069079][ T2114] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.069082][ T2114] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 109.069090][ T2114] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 109.069093][ T2114] ? 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) [ 109.069096][ T2114] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 109.069101][ T2114] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 109.069105][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.069110][ T2114] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 109.069115][ T2114] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.069118][ T2114] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 109.069127][ T2114] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.069131][ T2114] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 109.069139][ T2114] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 109.069142][ T2114] ? __copy_msghdr (net/socket.c:2556) [ 109.069149][ T2114] ___sys_sendmsg (net/socket.c:2686) [ 109.069152][ T2114] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 109.069155][ T2114] ? __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) [ 109.069163][ T2114] ? copy_msghdr_from_user (net/socket.c:2673) [ 109.069168][ T2114] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.069172][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.069178][ T2114] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.069182][ T2114] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 109.069190][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.069196][ T2114] __sys_sendmsg (net/socket.c:2716) [ 109.069199][ T2114] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 109.069203][ T2114] ? __sys_sendmsg_sock (net/socket.c:2701) [ 109.069211][ T2114] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.069215][ T2114] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 109.069220][ T2114] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 109.069225][ T2114] RIP: 0033:0x7fa3c895d1d7 [ 109.069229][ T2114] 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) [ 109.069232][ T2114] RSP: 002b:00007ffd8edb9348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 109.069238][ T2114] RAX: ffffffffffffffda RBX: 00007ffd8edb9a70 RCX: 00007fa3c895d1d7 [ 109.069240][ T2114] RDX: 0000000000000000 RSI: 00007ffd8edb93b0 RDI: 0000000000000005 [ 109.069243][ T2114] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 109.069244][ T2114] R10: 00007fa3c8859f60 R11: 0000000000000246 R12: 0000000000000003 [ 109.069246][ T2114] R13: 00000000691ccfef R14: 0000000000499600 R15: 0000000000000000 | [ 109.089443][ T2114] #PF: error_code(0x0002) - not-present page | [ 109.089783][ T2114] PGD e189067 P4D e189067 PUD 102ee067 PMD 0 | [ 109.090032][ T2114] Oops: Oops: 0002 [#1] SMP KASAN | [ 109.090714][ T2114] Tainted: [B]=BAD_PAGE [ 109.090914][ T2114] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 109.091148][ T2114] 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) [ 109.091422][ T2114] 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 [ 109.092207][ T2114] RSP: 0018:ffffc90003ba6f40 EFLAGS: 00010046 [ 109.092563][ T2114] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8c64090a [ 109.092838][ T2114] RDX: fffffbfff210f2cd RSI: 0000000000000008 RDI: ffffffff90879660 [ 109.093128][ T2114] RBP: ffffc90003ba6fa8 R08: 0000000000000001 R09: fffffbfff210f2cc [ 109.093428][ T2114] R10: ffffffff90879667 R11: ffffc90003ba6a00 R12: 0000000000000000 [ 109.093706][ T2114] R13: 0000000000000282 R14: ffff8880027c9000 R15: dffffc0000000000 [ 109.093983][ T2114] FS: 00007fa3c878f800(0000) GS:ffff8880a5b72000(0000) knlGS:0000000000000000 [ 109.094430][ T2114] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.094677][ T2114] CR2: 0000000000000000 CR3: 000000000f52d005 CR4: 0000000000772ef0 [ 109.095065][ T2114] PKRU: 55555554 [ 109.095207][ T2114] Call Trace: [ 109.095354][ T2114] [ 109.095454][ T2114] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 109.095644][ T2114] ? enable_delayed_work (kernel/workqueue.c:4359) [ 109.095941][ T2114] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 109.096134][ T2114] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 109.096327][ T2114] __cancel_work_sync (kernel/workqueue.c:4383) [ 109.096513][ T2114] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 109.096806][ T2114] ? netdev_notify_peers (net/core/dev.c:1891) [ 109.096987][ T2114] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 109.097191][ T2114] __dev_change_flags (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1945 net/core/dev.c:9924) [ 109.097385][ T2114] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 109.097678][ T2114] ? netif_set_allmulti (net/core/dev.c:9890) [ 109.097862][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.098054][ T2114] netif_change_flags (net/core/dev.c:9989) [ 109.098240][ T2114] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 109.098534][ T2114] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 109.098723][ T2114] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 109.098917][ T2114] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 109.099107][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.099296][ T2114] ? __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) [ 109.099479][ T2114] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 109.099665][ T2114] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.099847][ T2114] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.100140][ T2114] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 109.100335][ T2114] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 109.100521][ T2114] ? __create_object (mm/kmemleak.c:786) [ 109.100705][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.100991][ T2114] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 109.101185][ T2114] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 109.101372][ T2114] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 109.101557][ T2114] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 109.101847][ T2114] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 109.102041][ T2114] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.102238][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.102426][ T2114] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.102713][ T2114] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 109.102896][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.103087][ T2114] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.103280][ T2114] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 109.103592][ T2114] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.103789][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.103974][ T2114] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 109.104164][ T2114] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.104462][ T2114] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 109.104652][ T2114] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 109.104833][ T2114] ? 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) [ 109.105014][ T2114] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 109.105312][ T2114] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 109.105504][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.105691][ T2114] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 109.105879][ T2114] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.106164][ T2114] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 109.106354][ T2114] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.106542][ T2114] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 109.106730][ T2114] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 109.107063][ T2114] ? __copy_msghdr (net/socket.c:2556) [ 109.107259][ T2114] ___sys_sendmsg (net/socket.c:2686) [ 109.107445][ T2114] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 109.107638][ T2114] ? __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) [ 109.107974][ T2114] ? copy_msghdr_from_user (net/socket.c:2673) [ 109.108162][ T2114] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.108356][ T2114] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.108548][ T2114] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.108841][ T2114] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 109.109027][ T2114] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.109217][ T2114] __sys_sendmsg (net/socket.c:2716) [ 109.109405][ T2114] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 109.109739][ T2114] ? __sys_sendmsg_sock (net/socket.c:2701) [ 109.109921][ T2114] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.110110][ T2114] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 109.110301][ T2114] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 109.110543][ T2114] RIP: 0033:0x7fa3c895d1d7 [ 109.110741][ T2114] 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) [ 109.111507][ T2114] RSP: 002b:00007ffd8edb9348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 109.111794][ T2114] RAX: ffffffffffffffda RBX: 00007ffd8edb9a70 RCX: 00007fa3c895d1d7 [ 109.112197][ T2114] RDX: 0000000000000000 RSI: 00007ffd8edb93b0 RDI: 0000000000000005 [ 109.112482][ T2114] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 109.112765][ T2114] R10: 00007fa3c8859f60 R11: 0000000000000246 R12: 0000000000000003 Finger prints: try_to_grab_pending:__cancel_work:__cancel_work_sync:__dev_close_many:__dev_change_flags kasan_report:kasan_check_range:try_to_grab_pending:__cancel_work:__cancel_work_sync