====================================== | [ 116.453251][ T2113] ================================================================== | [ 116.453769][ T2113] 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) | [ 116.454274][ T2113] Write of size 8 at addr 0000000000000000 by task ip/2113 | [ 116.454762][ T2113] [ 116.454940][ T2113] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 116.454944][ T2113] Call Trace: [ 116.454949][ T2113] [ 116.454952][ T2113] dump_stack_lvl (lib/dump_stack.c:123) [ 116.454978][ T2113] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 116.454984][ T2113] kasan_report (mm/kasan/report.c:597) [ 116.455001][ T2113] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 116.455013][ T2113] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 116.455019][ T2113] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 116.455030][ T2113] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 116.455036][ T2113] ? enable_delayed_work (kernel/workqueue.c:4359) [ 116.455043][ T2113] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 116.455049][ T2113] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 116.455062][ T2113] __cancel_work_sync (kernel/workqueue.c:4383) [ 116.455068][ T2113] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 116.455084][ T2113] ? netdev_notify_peers (net/core/dev.c:1891) [ 116.455091][ T2113] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 116.455102][ T2113] __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) [ 116.455108][ T2113] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 116.455120][ T2113] ? netif_set_allmulti (net/core/dev.c:9890) [ 116.455124][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.455135][ T2113] netif_change_flags (net/core/dev.c:9989) [ 116.455143][ T2113] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 116.455153][ T2113] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 116.455164][ T2113] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 116.455173][ T2113] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 116.455182][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.455191][ T2113] ? __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) [ 116.455198][ T2113] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 116.455204][ T2113] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 116.455212][ T2113] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 116.455217][ T2113] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 116.455224][ T2113] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 116.455245][ T2113] ? __create_object (mm/kmemleak.c:786) [ 116.455252][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.455258][ T2113] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 116.455264][ T2113] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 116.455270][ T2113] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 116.455282][ T2113] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 116.455293][ T2113] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 116.455302][ T2113] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 116.455308][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.455319][ T2113] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 116.455325][ T2113] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 116.455329][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.455337][ T2113] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 116.455343][ T2113] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 116.455350][ T2113] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 116.455355][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.455368][ T2113] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 116.455378][ T2113] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 116.455385][ T2113] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 116.455398][ T2113] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 116.455403][ T2113] ? 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) [ 116.455410][ T2113] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 116.455419][ T2113] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 116.455426][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.455436][ T2113] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 116.455445][ T2113] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 116.455451][ T2113] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 116.455468][ T2113] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 116.455475][ T2113] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 116.455489][ T2113] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 116.455494][ T2113] ? __copy_msghdr (net/socket.c:2556) [ 116.455509][ T2113] ___sys_sendmsg (net/socket.c:2686) [ 116.455514][ T2113] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 116.455519][ T2113] ? __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) [ 116.455528][ T2113] ? copy_msghdr_from_user (net/socket.c:2673) [ 116.455537][ T2113] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 116.455545][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.455555][ T2113] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 116.455562][ T2113] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 116.455578][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.455590][ T2113] __sys_sendmsg (net/socket.c:2716) [ 116.455596][ T2113] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 116.455602][ T2113] ? __sys_sendmsg_sock (net/socket.c:2701) [ 116.455616][ T2113] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 116.455623][ T2113] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 116.455632][ T2113] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 116.455643][ T2113] RIP: 0033:0x7f65d28891d7 [ 116.455650][ T2113] 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) [ 116.455655][ T2113] RSP: 002b:00007ffea3d13db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.455666][ T2113] RAX: ffffffffffffffda RBX: 00007ffea3d144e0 RCX: 00007f65d28891d7 [ 116.455670][ T2113] RDX: 0000000000000000 RSI: 00007ffea3d13e20 RDI: 0000000000000005 [ 116.455673][ T2113] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 116.455676][ T2113] R10: 00007f65d2785f60 R11: 0000000000000246 R12: 0000000000000003 [ 116.455679][ T2113] R13: 00000000691cbbe0 R14: 0000000000499600 R15: 0000000000000000 | [ 116.485594][ T2113] #PF: error_code(0x0002) - not-present page | [ 116.485953][ T2113] PGD fdeb067 P4D fdeb067 PUD fca4067 PMD 0 | [ 116.486324][ T2113] Oops: Oops: 0002 [#1] SMP KASAN | [ 116.487215][ T2113] Tainted: [B]=BAD_PAGE [ 116.487452][ T2113] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 116.487824][ T2113] 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) [ 116.488213][ T2113] 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 [ 116.489277][ T2113] RSP: 0018:ffffc90003b86f40 EFLAGS: 00010046 [ 116.489655][ T2113] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa304090a [ 116.490104][ T2113] RDX: fffffbfff4e4f2cd RSI: 0000000000000008 RDI: ffffffffa7279660 [ 116.490553][ T2113] RBP: ffffc90003b86fa8 R08: 0000000000000001 R09: fffffbfff4e4f2cc [ 116.491000][ T2113] R10: ffffffffa7279667 R11: ffffc90003b86a00 R12: 0000000000000000 [ 116.491446][ T2113] R13: 0000000000000282 R14: ffff88800a97c000 R15: dffffc0000000000 [ 116.491885][ T2113] FS: 00007f65d26bb800(0000) GS:ffff88808eff2000(0000) knlGS:0000000000000000 [ 116.492388][ T2113] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 116.492752][ T2113] CR2: 0000000000000000 CR3: 000000000cbcf006 CR4: 0000000000772ef0 [ 116.493203][ T2113] PKRU: 55555554 [ 116.493431][ T2113] Call Trace: [ 116.493656][ T2113] [ 116.493815][ T2113] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 116.494121][ T2113] ? enable_delayed_work (kernel/workqueue.c:4359) [ 116.494421][ T2113] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 116.494716][ T2113] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 116.495014][ T2113] __cancel_work_sync (kernel/workqueue.c:4383) [ 116.495326][ T2113] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 116.495614][ T2113] ? netdev_notify_peers (net/core/dev.c:1891) [ 116.495903][ T2113] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 116.496194][ T2113] __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) [ 116.496481][ T2113] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 116.496770][ T2113] ? netif_set_allmulti (net/core/dev.c:9890) [ 116.497064][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.497378][ T2113] netif_change_flags (net/core/dev.c:9989) [ 116.497678][ T2113] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 116.497977][ T2113] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 116.498277][ T2113] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 116.498575][ T2113] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 116.498886][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.499186][ T2113] ? __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) [ 116.499490][ T2113] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 116.499776][ T2113] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 116.500068][ T2113] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 116.500357][ T2113] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 116.500654][ T2113] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 116.500951][ T2113] ? __create_object (mm/kmemleak.c:786) [ 116.501250][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.501544][ T2113] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 116.501849][ T2113] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 116.502139][ T2113] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 116.502431][ T2113] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 116.502723][ T2113] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 116.503015][ T2113] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 116.503313][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.503614][ T2113] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 116.503909][ T2113] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 116.504212][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.504508][ T2113] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 116.504795][ T2113] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 116.505086][ T2113] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 116.505378][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.505675][ T2113] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 116.505972][ T2113] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 116.506269][ T2113] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 116.506581][ T2113] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 116.506876][ T2113] ? 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) [ 116.507175][ T2113] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 116.507478][ T2113] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 116.507777][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.508079][ T2113] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 116.508363][ T2113] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 116.508654][ T2113] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 116.508968][ T2113] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 116.509267][ T2113] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 116.509566][ T2113] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 116.509926][ T2113] ? __copy_msghdr (net/socket.c:2556) [ 116.510226][ T2113] ___sys_sendmsg (net/socket.c:2686) [ 116.510516][ T2113] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 116.510815][ T2113] ? __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) [ 116.511199][ T2113] ? copy_msghdr_from_user (net/socket.c:2673) [ 116.511500][ T2113] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 116.511802][ T2113] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 116.512104][ T2113] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 116.512400][ T2113] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 116.512893][ T2113] ? __lock_release (kernel/locking/lockdep.c:5536) [ 116.513186][ T2113] __sys_sendmsg (net/socket.c:2716) [ 116.513472][ T2113] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 116.513852][ T2113] ? __sys_sendmsg_sock (net/socket.c:2701) [ 116.514337][ T2113] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 116.514633][ T2113] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 116.514933][ T2113] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 116.515505][ T2113] RIP: 0033:0x7f65d28891d7 [ 116.515816][ T2113] 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) [ 116.517077][ T2113] RSP: 002b:00007ffea3d13db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.517519][ T2113] RAX: ffffffffffffffda RBX: 00007ffea3d144e0 RCX: 00007f65d28891d7 [ 116.517955][ T2113] RDX: 0000000000000000 RSI: 00007ffea3d13e20 RDI: 0000000000000005 [ 116.518608][ T2113] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 116.519065][ T2113] R10: 00007f65d2785f60 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