====================================== | [ 109.732189][ T1334] ================================================================== | [ 109.732512][ T1334] 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) | [ 109.732838][ T1334] Write of size 8 at addr 0000000000000000 by task ip/1334 | [ 109.733115][ T1334] [ 109.733229][ T1334] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 109.733234][ T1334] Call Trace: [ 109.733238][ T1334] [ 109.733240][ T1334] dump_stack_lvl (lib/dump_stack.c:123) [ 109.733253][ T1334] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 109.733257][ T1334] kasan_report (mm/kasan/report.c:597) [ 109.733263][ T1334] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 109.733269][ T1334] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 109.733272][ T1334] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 109.733278][ T1334] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 109.733281][ T1334] ? enable_delayed_work (kernel/workqueue.c:4359) [ 109.733285][ T1334] ? qdisc_destroy (net/sched/sch_generic.c:1355) [ 109.733292][ T1334] __cancel_work_sync (kernel/workqueue.c:4383) [ 109.733296][ T1334] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 109.733305][ T1334] ? netdev_notify_peers (net/core/dev.c:1891) [ 109.733310][ T1334] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 109.733318][ T1334] __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) [ 109.733321][ T1334] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 109.733328][ T1334] ? netif_set_allmulti (net/core/dev.c:9890) [ 109.733330][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.733337][ T1334] netif_change_flags (net/core/dev.c:9989) [ 109.733341][ T1334] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 109.733347][ T1334] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 109.733353][ T1334] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 109.733361][ T1334] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 109.733366][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.733371][ T1334] ? __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) [ 109.733375][ T1334] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 109.733379][ T1334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.733384][ T1334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.733386][ T1334] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 109.733390][ T1334] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 109.733402][ T1334] ? __create_object (mm/kmemleak.c:786) [ 109.733407][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.733410][ T1334] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 109.733413][ T1334] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 109.733417][ T1334] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 109.733424][ T1334] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 109.733430][ T1334] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 109.733434][ T1334] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.733437][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.733443][ T1334] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.733447][ T1334] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 109.733449][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.733454][ T1334] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.733457][ T1334] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 109.733461][ T1334] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.733464][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.733471][ T1334] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 109.733476][ T1334] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.733480][ T1334] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 109.733486][ T1334] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 109.733490][ T1334] ? 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) [ 109.733493][ T1334] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 109.733498][ T1334] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 109.733502][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.733507][ T1334] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 109.733512][ T1334] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.733516][ T1334] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 109.733527][ T1334] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.733531][ T1334] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 109.733538][ T1334] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 109.733541][ T1334] ? __copy_msghdr (net/socket.c:2556) [ 109.733549][ T1334] ___sys_sendmsg (net/socket.c:2686) [ 109.733552][ T1334] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 109.733556][ T1334] ? __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) [ 109.733565][ T1334] ? copy_msghdr_from_user (net/socket.c:2673) [ 109.733572][ T1334] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.733580][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.733589][ T1334] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.733594][ T1334] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 109.733604][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.733614][ T1334] __sys_sendmsg (net/socket.c:2716) [ 109.733619][ T1334] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 109.733625][ T1334] ? __sys_sendmsg_sock (net/socket.c:2701) [ 109.733638][ T1334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.733643][ T1334] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 109.733653][ T1334] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 109.733658][ T1334] RIP: 0033:0x7f8242ae61d7 [ 109.733663][ T1334] 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) [ 109.733666][ T1334] RSP: 002b:00007ffc16525618 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 109.733672][ T1334] RAX: ffffffffffffffda RBX: 00007ffc16525d40 RCX: 00007f8242ae61d7 [ 109.733675][ T1334] RDX: 0000000000000000 RSI: 00007ffc16525680 RDI: 0000000000000005 [ 109.733677][ T1334] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 109.733678][ T1334] R10: 00007f82429e2f60 R11: 0000000000000246 R12: 0000000000000003 [ 109.733680][ T1334] R13: 00000000691cd818 R14: 0000000000499600 R15: 0000000000000000 | [ 109.751649][ T1334] #PF: error_code(0x0002) - not-present page | [ 109.751867][ T1334] PGD 9b2d067 P4D 9b2d067 PUD 605a067 PMD 0 | [ 109.752092][ T1334] Oops: Oops: 0002 [#1] SMP KASAN | [ 109.752636][ T1334] Tainted: [B]=BAD_PAGE [ 109.752773][ T1334] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 109.752996][ T1334] 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) [ 109.753233][ T1334] 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 [ 109.753859][ T1334] RSP: 0018:ffffc900023b6f40 EFLAGS: 00010046 [ 109.754095][ T1334] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8ce4090a [ 109.754356][ T1334] RDX: fffffbfff220f2cd RSI: 0000000000000008 RDI: ffffffff91079660 [ 109.754615][ T1334] RBP: ffffc900023b6fa8 R08: 0000000000000001 R09: fffffbfff220f2cc [ 109.754881][ T1334] R10: ffffffff91079667 R11: ffffc900023b6a00 R12: 0000000000000000 [ 109.755146][ T1334] R13: 0000000000000282 R14: ffff88800a901000 R15: dffffc0000000000 [ 109.755407][ T1334] FS: 00007f8242918800(0000) GS:ffff8880a5272000(0000) knlGS:0000000000000000 [ 109.755827][ T1334] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.756054][ T1334] CR2: 0000000000000000 CR3: 000000000f59a005 CR4: 0000000000772ef0 [ 109.756323][ T1334] PKRU: 55555554 [ 109.756455][ T1334] Call Trace: [ 109.756693][ T1334] [ 109.756787][ T1334] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 109.756964][ T1334] ? enable_delayed_work (kernel/workqueue.c:4359) [ 109.757139][ T1334] ? qdisc_destroy (net/sched/sch_generic.c:1355) [ 109.757318][ T1334] __cancel_work_sync (kernel/workqueue.c:4383) [ 109.757598][ T1334] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 109.757779][ T1334] ? netdev_notify_peers (net/core/dev.c:1891) [ 109.757950][ T1334] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 109.758123][ T1334] __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) [ 109.758398][ T1334] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 109.758572][ T1334] ? netif_set_allmulti (net/core/dev.c:9890) [ 109.758741][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.758928][ T1334] netif_change_flags (net/core/dev.c:9989) [ 109.759220][ T1334] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 109.759399][ T1334] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 109.759576][ T1334] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 109.759752][ T1334] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 109.759927][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.760102][ T1334] ? __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) [ 109.760283][ T1334] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 109.760455][ T1334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.760772][ T1334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.760955][ T1334] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 109.761133][ T1334] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 109.761311][ T1334] ? __create_object (mm/kmemleak.c:786) [ 109.761596][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.761771][ T1334] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 109.761947][ T1334] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 109.762126][ T1334] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 109.762439][ T1334] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 109.762621][ T1334] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 109.762796][ T1334] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.762985][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.763269][ T1334] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.763447][ T1334] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 109.763626][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.763803][ T1334] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 109.764091][ T1334] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 109.764295][ T1334] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.764481][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.764659][ T1334] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 109.764936][ T1334] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 109.765111][ T1334] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 109.765299][ T1334] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 109.765479][ T1334] ? 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) [ 109.765760][ T1334] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 109.765935][ T1334] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 109.766113][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.766294][ T1334] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 109.766579][ T1334] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.766753][ T1334] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 109.766936][ T1334] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 109.767112][ T1334] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 109.767397][ T1334] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 109.767633][ T1334] ? __copy_msghdr (net/socket.c:2556) [ 109.767819][ T1334] ___sys_sendmsg (net/socket.c:2686) [ 109.768099][ T1334] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 109.768278][ T1334] ? __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) [ 109.768503][ T1334] ? copy_msghdr_from_user (net/socket.c:2673) [ 109.768683][ T1334] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.768979][ T1334] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 109.769154][ T1334] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 109.769332][ T1334] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 109.769509][ T1334] ? __lock_release (kernel/locking/lockdep.c:5536) [ 109.769794][ T1334] __sys_sendmsg (net/socket.c:2716) [ 109.769966][ T1334] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 109.770184][ T1334] ? __sys_sendmsg_sock (net/socket.c:2701) [ 109.770362][ T1334] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 109.770644][ T1334] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 109.770823][ T1334] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 109.771045][ T1334] RIP: 0033:0x7f8242ae61d7 [ 109.771229][ T1334] 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) [ 109.771990][ T1334] RSP: 002b:00007ffc16525618 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 109.772367][ T1334] RAX: ffffffffffffffda RBX: 00007ffc16525d40 RCX: 00007f8242ae61d7 [ 109.772634][ T1334] RDX: 0000000000000000 RSI: 00007ffc16525680 RDI: 0000000000000005 [ 109.772899][ T1334] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 109.773277][ T1334] R10: 00007f82429e2f60 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