====================================== | [ 29.610820][ T371] ================================================================== | [ 29.611268][ T371] 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) | [ 29.611723][ T371] Write of size 8 at addr 0000000000000000 by task ip/371 | [ 29.612117][ T371] [ 29.612287][ T371] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.612290][ T371] Call Trace: [ 29.612292][ T371] [ 29.612299][ T371] dump_stack_lvl (lib/dump_stack.c:123) [ 29.612312][ T371] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 29.612316][ T371] kasan_report (mm/kasan/report.c:597) [ 29.612324][ T371] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 29.612332][ T371] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 29.612337][ T371] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 29.612345][ T371] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 29.612350][ T371] ? enable_delayed_work (kernel/workqueue.c:4359) [ 29.612356][ T371] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 29.612361][ T371] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 29.612369][ T371] __cancel_work_sync (kernel/workqueue.c:4383) [ 29.612375][ T371] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 29.612383][ T371] ? netdev_notify_peers (net/core/dev.c:1891) [ 29.612390][ T371] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 29.612397][ T371] __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) [ 29.612401][ T371] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 29.612409][ T371] ? netif_set_allmulti (net/core/dev.c:9890) [ 29.612412][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.612422][ T371] netif_change_flags (net/core/dev.c:9989) [ 29.612428][ T371] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 29.612436][ T371] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 29.612445][ T371] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.612452][ T371] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 29.612460][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.612467][ T371] ? __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) [ 29.612473][ T371] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 29.612478][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 29.612484][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 29.612488][ T371] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 29.612493][ T371] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 29.612499][ T371] ? __create_object (mm/kmemleak.c:786) [ 29.612503][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.612508][ T371] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 29.612513][ T371] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 29.612518][ T371] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 29.612526][ T371] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 29.612535][ T371] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 29.612543][ T371] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 29.612547][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.612556][ T371] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 29.612562][ T371] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 29.612565][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.612572][ T371] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 29.612576][ T371] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 29.612582][ T371] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 29.612586][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.612598][ T371] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 29.612603][ T371] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 29.612609][ T371] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 29.612620][ T371] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 29.612624][ T371] ? 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) [ 29.612631][ T371] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 29.612637][ T371] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 29.612643][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.612652][ T371] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 29.612659][ T371] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 29.612665][ T371] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 29.612675][ T371] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 29.612681][ T371] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 29.612688][ T371] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 29.612693][ T371] ? __copy_msghdr (net/socket.c:2556) [ 29.612705][ T371] ___sys_sendmsg (net/socket.c:2686) [ 29.612709][ T371] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 29.612713][ T371] ? __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) [ 29.612720][ T371] ? copy_msghdr_from_user (net/socket.c:2673) [ 29.612728][ T371] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 29.612734][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.612743][ T371] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 29.612749][ T371] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 29.612754][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.612764][ T371] __sys_sendmsg (net/socket.c:2716) [ 29.612769][ T371] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 29.612774][ T371] ? __sys_sendmsg_sock (net/socket.c:2701) [ 29.612786][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 29.612792][ T371] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 29.612800][ T371] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 29.612804][ T371] RIP: 0033:0x7fee1815b1d7 [ 29.612812][ T371] 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) [ 29.612817][ T371] RSP: 002b:00007ffd27968418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.612822][ T371] RAX: ffffffffffffffda RBX: 00007ffd27968b40 RCX: 00007fee1815b1d7 [ 29.612825][ T371] RDX: 0000000000000000 RSI: 00007ffd27968480 RDI: 0000000000000005 [ 29.612828][ T371] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 29.612830][ T371] R10: 00007fee18057f60 R11: 0000000000000246 R12: 0000000000000003 [ 29.612833][ T371] R13: 00000000691ccd9b R14: 0000000000499600 R15: 0000000000000000 | [ 29.642021][ T371] #PF: error_code(0x0002) - not-present page | [ 29.642531][ T371] PGD de19067 P4D de19067 PUD de18067 PMD 0 | [ 29.642880][ T371] Oops: Oops: 0002 [#1] SMP KASAN | [ 29.643868][ T371] Tainted: [B]=BAD_PAGE [ 29.644078][ T371] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.644434][ T371] 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) [ 29.644793][ T371] 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 [ 29.645913][ T371] RSP: 0018:ffffc900007b6f40 EFLAGS: 00010046 [ 29.646435][ T371] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff84e4090a [ 29.646887][ T371] RDX: fffffbfff120f2cd RSI: 0000000000000008 RDI: ffffffff89079660 [ 29.647337][ T371] RBP: ffffc900007b6fa8 R08: 0000000000000001 R09: fffffbfff120f2cc [ 29.647920][ T371] R10: ffffffff89079667 R11: ffffc900007b6a00 R12: 0000000000000000 [ 29.648327][ T371] R13: 0000000000000282 R14: ffff8880051ec000 R15: dffffc0000000000 [ 29.648922][ T371] FS: 00007fee17f8d800(0000) GS:ffff8880ad372000(0000) knlGS:0000000000000000 [ 29.649392][ T371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.649723][ T371] CR2: 0000000000000000 CR3: 0000000004c2b006 CR4: 0000000000772ef0 [ 29.650308][ T371] PKRU: 55555554 [ 29.650516][ T371] Call Trace: [ 29.650723][ T371] [ 29.650872][ T371] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 29.651157][ T371] ? enable_delayed_work (kernel/workqueue.c:4359) [ 29.651603][ T371] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 29.651871][ T371] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 29.652145][ T371] __cancel_work_sync (kernel/workqueue.c:4383) [ 29.652407][ T371] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 29.652845][ T371] ? netdev_notify_peers (net/core/dev.c:1891) [ 29.653109][ T371] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 29.653379][ T371] __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) [ 29.653644][ T371] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 29.654081][ T371] ? netif_set_allmulti (net/core/dev.c:9890) [ 29.654340][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.654605][ T371] netif_change_flags (net/core/dev.c:9989) [ 29.654873][ T371] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 29.655310][ T371] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 29.655580][ T371] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.655844][ T371] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 29.656112][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.656551][ T371] ? __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) [ 29.656818][ T371] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 29.657086][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 29.657360][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 29.657799][ T371] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 29.658065][ T371] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 29.658331][ T371] ? __create_object (mm/kmemleak.c:786) [ 29.658592][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.659027][ T371] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 29.659289][ T371] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 29.659551][ T371] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 29.659820][ T371] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 29.660267][ T371] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 29.660532][ T371] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 29.660791][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.661060][ T371] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 29.661325][ T371] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 29.661586][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.661853][ T371] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 29.662119][ T371] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 29.662564][ T371] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 29.662833][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.663106][ T371] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 29.663370][ T371] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 29.663806][ T371] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 29.664079][ T371] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 29.664343][ T371] ? 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) [ 29.664609][ T371] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 29.665062][ T371] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 29.665345][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.665629][ T371] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 29.665912][ T371] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 29.666361][ T371] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 29.666646][ T371] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 29.666910][ T371] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 29.667187][ T371] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 29.667718][ T371] ? __copy_msghdr (net/socket.c:2556) [ 29.668003][ T371] ___sys_sendmsg (net/socket.c:2686) [ 29.668285][ T371] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 29.668566][ T371] ? __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) [ 29.669098][ T371] ? copy_msghdr_from_user (net/socket.c:2673) [ 29.669381][ T371] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 29.669663][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 29.670115][ T371] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 29.670398][ T371] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 29.670677][ T371] ? __lock_release (kernel/locking/lockdep.c:5536) [ 29.670959][ T371] __sys_sendmsg (net/socket.c:2716) [ 29.671394][ T371] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 29.671733][ T371] ? __sys_sendmsg_sock (net/socket.c:2701) [ 29.672011][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 29.672291][ T371] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 29.672726][ T371] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 29.673053][ T371] RIP: 0033:0x7fee1815b1d7 [ 29.673335][ T371] 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) [ 29.674519][ T371] RSP: 002b:00007ffd27968418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.674956][ T371] RAX: ffffffffffffffda RBX: 00007ffd27968b40 RCX: 00007fee1815b1d7 [ 29.675545][ T371] RDX: 0000000000000000 RSI: 00007ffd27968480 RDI: 0000000000000005 [ 29.675946][ T371] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 29.676542][ T371] R10: 00007fee18057f60 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