====================================== | [ 15.859694][ T260] ================================================================== | [ 15.860053][ T260] 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) | [ 15.860351][ T260] Write of size 8 at addr 0000000000000000 by task ip/260 | [ 15.860578][ T260] [ 15.860678][ T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.860681][ T260] Call Trace: [ 15.860684][ T260] [ 15.860686][ T260] dump_stack_lvl (lib/dump_stack.c:123) [ 15.860695][ T260] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 15.860699][ T260] kasan_report (mm/kasan/report.c:597) [ 15.860706][ T260] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 15.860712][ T260] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 15.860717][ T260] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 15.860722][ T260] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 15.860726][ T260] ? enable_delayed_work (kernel/workqueue.c:4359) [ 15.860733][ T260] __cancel_work_sync (kernel/workqueue.c:4383) [ 15.860737][ T260] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 15.860744][ T260] ? netdev_notify_peers (net/core/dev.c:1891) [ 15.860749][ T260] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 15.860756][ T260] __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) [ 15.860761][ T260] ? netif_set_allmulti (net/core/dev.c:9890) [ 15.860763][ T260] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746) [ 15.860772][ T260] netif_change_flags (net/core/dev.c:9989) [ 15.860774][ T260] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 15.860780][ T260] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 15.860787][ T260] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 15.860793][ T260] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.860798][ T260] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 15.860805][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.860810][ T260] ? __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) [ 15.860815][ T260] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 15.860819][ T260] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 15.860823][ T260] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 15.860825][ T260] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 15.860830][ T260] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 15.860836][ T260] ? __create_object (mm/kmemleak.c:786) [ 15.860840][ T260] ? __lock_release (kernel/locking/lockdep.c:5536) [ 15.860843][ T260] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 15.860847][ T260] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 15.860851][ T260] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 15.860858][ T260] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 15.860864][ T260] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 15.860869][ T260] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 15.860872][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.860878][ T260] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 15.860881][ T260] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 15.860884][ T260] ? __lock_release (kernel/locking/lockdep.c:5536) [ 15.860888][ T260] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 15.860891][ T260] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 15.860895][ T260] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 15.860897][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.860904][ T260] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 15.860909][ T260] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 15.860913][ T260] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 15.860920][ T260] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 15.860923][ T260] ? 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) [ 15.860927][ T260] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 15.860931][ T260] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 15.860935][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.860940][ T260] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 15.860945][ T260] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 15.860949][ T260] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 15.860953][ T260] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 15.860957][ T260] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 15.860965][ T260] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 15.860968][ T260] ? __copy_msghdr (net/socket.c:2556) [ 15.860976][ T260] ___sys_sendmsg (net/socket.c:2686) [ 15.860978][ T260] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 15.860980][ T260] ? __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) [ 15.860986][ T260] ? copy_msghdr_from_user (net/socket.c:2673) [ 15.860991][ T260] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 15.860995][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.861000][ T260] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 15.861003][ T260] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 15.861008][ T260] ? __lock_release (kernel/locking/lockdep.c:5536) [ 15.861014][ T260] __sys_sendmsg (net/socket.c:2716) [ 15.861016][ T260] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 15.861019][ T260] ? __sys_sendmsg_sock (net/socket.c:2701) [ 15.861026][ T260] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 15.861029][ T260] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 15.861035][ T260] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 15.861039][ T260] RIP: 0033:0x7fc47ad6d1d7 [ 15.861044][ T260] 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) [ 15.861047][ T260] RSP: 002b:00007fff3d39f5e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.861051][ T260] RAX: ffffffffffffffda RBX: 00007fff3d39fd10 RCX: 00007fc47ad6d1d7 [ 15.861053][ T260] RDX: 0000000000000000 RSI: 00007fff3d39f650 RDI: 0000000000000005 [ 15.861055][ T260] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.861056][ T260] R10: 00007fc47ac69f60 R11: 0000000000000246 R12: 0000000000000003 [ 15.861058][ T260] R13: 00000000691ccd29 R14: 0000000000499600 R15: 0000000000000000 | [ 15.878598][ T260] #PF: error_code(0x0002) - not-present page | [ 15.878821][ T260] PGD c7e5067 P4D c7e5067 PUD 4b9c067 PMD 0 | [ 15.879043][ T260] Oops: Oops: 0002 [#1] SMP KASAN | [ 15.879611][ T260] Tainted: [B]=BAD_PAGE [ 15.879750][ T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.879979][ T260] 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) [ 15.880220][ T260] 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 af 80 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 af 80 81 00 call 0x8180d9 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 [ 15.880871][ T260] RSP: 0018:ffffc90000616f30 EFLAGS: 00010046 [ 15.881100][ T260] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffb0a3e90a [ 15.881370][ T260] RDX: fffffbfff698decd RSI: 0000000000000008 RDI: ffffffffb4c6f660 [ 15.881635][ T260] RBP: ffffc90000616f98 R08: 0000000000000001 R09: fffffbfff698decc [ 15.881903][ T260] R10: ffffffffb4c6f667 R11: ffffc90000616a00 R12: 0000000000000000 [ 15.882169][ T260] R13: 0000000000000286 R14: ffff88800e19a000 R15: dffffc0000000000 [ 15.882432][ T260] FS: 00007fc47ab9f800(0000) GS:ffff88807bcfc000(0000) knlGS:0000000000000000 [ 15.882751][ T260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.883004][ T260] CR2: 0000000000000000 CR3: 000000000f61b002 CR4: 0000000000772ef0 [ 15.883270][ T260] PKRU: 55555554 [ 15.883406][ T260] Call Trace: [ 15.883542][ T260] [ 15.883657][ T260] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 15.883833][ T260] ? enable_delayed_work (kernel/workqueue.c:4359) [ 15.884017][ T260] __cancel_work_sync (kernel/workqueue.c:4383) [ 15.884192][ T260] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 15.884380][ T260] ? netdev_notify_peers (net/core/dev.c:1891) [ 15.884555][ T260] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 15.884732][ T260] __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) [ 15.884917][ T260] ? netif_set_allmulti (net/core/dev.c:9890) [ 15.885089][ T260] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746) [ 15.885276][ T260] netif_change_flags (net/core/dev.c:9989) [ 15.885449][ T260] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 15.885622][ T260] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 15.885802][ T260] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 15.885981][ T260] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.886153][ T260] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 15.886364][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.886565][ T260] ? __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) [ 15.886740][ T260] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 15.886911][ T260] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 15.887081][ T260] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 15.887255][ T260] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 15.887428][ T260] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 15.887606][ T260] ? __create_object (mm/kmemleak.c:786) [ 15.887784][ T260] ? __lock_release (kernel/locking/lockdep.c:5536) [ 15.887969][ T260] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 15.888146][ T260] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 15.888324][ T260] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 15.888495][ T260] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 15.888671][ T260] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 15.888842][ T260] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 15.889017][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.889189][ T260] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 15.889378][ T260] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 15.889551][ T260] ? __lock_release (kernel/locking/lockdep.c:5536) [ 15.889726][ T260] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 15.889898][ T260] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 15.890071][ T260] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 15.890258][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.890431][ T260] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 15.890605][ T260] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 15.890785][ T260] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 15.890959][ T260] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 15.891131][ T260] ? 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) [ 15.891301][ T260] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 15.891490][ T260] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 15.891662][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.891835][ T260] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 15.892019][ T260] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 15.892190][ T260] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 15.892364][ T260] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 15.892531][ T260] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 15.892700][ T260] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 15.892908][ T260] ? __copy_msghdr (net/socket.c:2556) [ 15.893086][ T260] ___sys_sendmsg (net/socket.c:2686) [ 15.893253][ T260] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 15.893427][ T260] ? __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) [ 15.893637][ T260] ? copy_msghdr_from_user (net/socket.c:2673) [ 15.893832][ T260] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 15.894017][ T260] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 15.894189][ T260] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 15.894362][ T260] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 15.894531][ T260] ? __lock_release (kernel/locking/lockdep.c:5536) [ 15.894708][ T260] __sys_sendmsg (net/socket.c:2716) [ 15.894874][ T260] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 15.895085][ T260] ? __sys_sendmsg_sock (net/socket.c:2701) [ 15.895259][ T260] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 15.895427][ T260] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 15.895595][ T260] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 15.895809][ T260] RIP: 0033:0x7fc47ad6d1d7 [ 15.895988][ T260] 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) [ 15.896758][ T260] RSP: 002b:00007fff3d39f5e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.897045][ T260] RAX: ffffffffffffffda RBX: 00007fff3d39fd10 RCX: 00007fc47ad6d1d7 [ 15.897307][ T260] RDX: 0000000000000000 RSI: 00007fff3d39f650 RDI: 0000000000000005 [ 15.897577][ T260] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.897841][ T260] R10: 00007fc47ac69f60 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