====================================== | [ 254.798677][ T1674] ================================================================== | [ 254.799049][ T1674] 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) | [ 254.799381][ T1674] Write of size 8 at addr 0000000000000000 by task ip/1674 | [ 254.799684][ T1674] [ 254.799822][ T1674] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 254.799829][ T1674] Call Trace: [ 254.799832][ T1674] [ 254.799834][ T1674] dump_stack_lvl (lib/dump_stack.c:123) [ 254.799846][ T1674] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 254.799849][ T1674] kasan_report (mm/kasan/report.c:597) [ 254.799855][ T1674] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 254.799860][ T1674] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 254.799864][ T1674] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 254.799870][ T1674] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 254.799873][ T1674] ? enable_delayed_work (kernel/workqueue.c:4359) [ 254.799877][ T1674] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 254.799880][ T1674] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 254.799887][ T1674] __cancel_work_sync (kernel/workqueue.c:4383) [ 254.799891][ T1674] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 254.799900][ T1674] ? netdev_notify_peers (net/core/dev.c:1891) [ 254.799904][ T1674] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 254.799912][ T1674] __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) [ 254.799915][ T1674] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 254.799921][ T1674] ? netif_set_allmulti (net/core/dev.c:9890) [ 254.799924][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.799930][ T1674] netif_change_flags (net/core/dev.c:9989) [ 254.799934][ T1674] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 254.799940][ T1674] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 254.799945][ T1674] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 254.799954][ T1674] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 254.799959][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.799964][ T1674] ? __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) [ 254.799968][ T1674] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 254.799972][ T1674] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 254.799977][ T1674] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 254.799980][ T1674] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 254.799984][ T1674] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 254.799989][ T1674] ? __create_object (mm/kmemleak.c:786) [ 254.799994][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.799997][ T1674] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 254.800000][ T1674] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 254.800004][ T1674] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 254.800008][ T1674] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 254.800014][ T1674] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 254.800018][ T1674] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 254.800021][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.800027][ T1674] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 254.800031][ T1674] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 254.800033][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.800038][ T1674] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 254.800041][ T1674] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 254.800044][ T1674] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 254.800047][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.800054][ T1674] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 254.800058][ T1674] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 254.800062][ T1674] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 254.800069][ T1674] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 254.800072][ T1674] ? 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) [ 254.800076][ T1674] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 254.800080][ T1674] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 254.800084][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.800089][ T1674] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 254.800094][ T1674] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 254.800098][ T1674] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 254.800105][ T1674] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 254.800108][ T1674] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 254.800114][ T1674] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 254.800117][ T1674] ? __copy_msghdr (net/socket.c:2556) [ 254.800125][ T1674] ___sys_sendmsg (net/socket.c:2686) [ 254.800128][ T1674] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 254.800131][ T1674] ? __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) [ 254.800138][ T1674] ? copy_msghdr_from_user (net/socket.c:2673) [ 254.800143][ T1674] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 254.800147][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.800153][ T1674] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 254.800156][ T1674] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 254.800161][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.800168][ T1674] __sys_sendmsg (net/socket.c:2716) [ 254.800171][ T1674] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 254.800174][ T1674] ? __sys_sendmsg_sock (net/socket.c:2701) [ 254.800182][ T1674] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 254.800186][ T1674] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 254.800191][ T1674] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 254.800195][ T1674] RIP: 0033:0x7ff83aa781d7 [ 254.800209][ T1674] 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) [ 254.800215][ T1674] RSP: 002b:00007ffee4ba17e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 254.800221][ T1674] RAX: ffffffffffffffda RBX: 00007ffee4ba1f10 RCX: 00007ff83aa781d7 [ 254.800223][ T1674] RDX: 0000000000000000 RSI: 00007ffee4ba1850 RDI: 0000000000000005 [ 254.800225][ T1674] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 254.800226][ T1674] R10: 00007ff83a974f60 R11: 0000000000000246 R12: 0000000000000003 [ 254.800228][ T1674] R13: 00000000691cd2d5 R14: 0000000000499600 R15: 0000000000000000 | [ 254.820567][ T1674] #PF: error_code(0x0002) - not-present page | [ 254.820909][ T1674] PGD 1526a067 P4D 1526a067 PUD dfaf067 PMD 0 | [ 254.821160][ T1674] Oops: Oops: 0002 [#1] SMP KASAN | [ 254.821871][ T1674] Tainted: [B]=BAD_PAGE [ 254.822027][ T1674] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 254.822274][ T1674] 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) [ 254.822651][ T1674] 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 [ 254.823350][ T1674] RSP: 0018:ffffc900043f6f40 EFLAGS: 00010046 [ 254.823732][ T1674] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa5a4090a [ 254.824022][ T1674] RDX: fffffbfff538f2cd RSI: 0000000000000008 RDI: ffffffffa9c79660 [ 254.824311][ T1674] RBP: ffffc900043f6fa8 R08: 0000000000000001 R09: fffffbfff538f2cc [ 254.824724][ T1674] R10: ffffffffa9c79667 R11: ffffc900043f6a00 R12: 0000000000000000 [ 254.825026][ T1674] R13: 0000000000000282 R14: ffff888002811000 R15: dffffc0000000000 [ 254.825435][ T1674] FS: 00007ff83a8aa800(0000) GS:ffff88808c772000(0000) knlGS:0000000000000000 [ 254.825777][ T1674] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 254.826027][ T1674] CR2: 0000000000000000 CR3: 0000000012775002 CR4: 0000000000772ef0 [ 254.826440][ T1674] PKRU: 55555554 [ 254.826594][ T1674] Call Trace: [ 254.826752][ T1674] [ 254.826857][ T1674] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 254.827053][ T1674] ? enable_delayed_work (kernel/workqueue.c:4359) [ 254.827248][ T1674] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 254.827452][ T1674] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 254.827651][ T1674] __cancel_work_sync (kernel/workqueue.c:4383) [ 254.827853][ T1674] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 254.828158][ T1674] ? netdev_notify_peers (net/core/dev.c:1891) [ 254.828355][ T1674] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 254.828570][ T1674] __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) [ 254.828767][ T1674] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 254.829069][ T1674] ? netif_set_allmulti (net/core/dev.c:9890) [ 254.829262][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.829465][ T1674] netif_change_flags (net/core/dev.c:9989) [ 254.829688][ T1674] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 254.829992][ T1674] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 254.830186][ T1674] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 254.830382][ T1674] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 254.830585][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.830886][ T1674] ? __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) [ 254.831090][ T1674] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 254.831284][ T1674] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 254.831479][ T1674] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 254.831789][ T1674] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 254.831984][ T1674] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 254.832180][ T1674] ? __create_object (mm/kmemleak.c:786) [ 254.832374][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.832680][ T1674] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 254.832879][ T1674] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 254.833072][ T1674] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 254.833268][ T1674] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 254.833566][ T1674] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 254.833772][ T1674] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 254.833963][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.834160][ T1674] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 254.834454][ T1674] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 254.834666][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.834857][ T1674] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 254.835048][ T1674] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 254.835238][ T1674] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 254.835429][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.835624][ T1674] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 254.835837][ T1674] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 254.836147][ T1674] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 254.836345][ T1674] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 254.836540][ T1674] ? 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) [ 254.836776][ T1674] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 254.837077][ T1674] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 254.837274][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.837475][ T1674] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 254.837670][ T1674] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 254.837982][ T1674] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 254.838184][ T1674] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 254.838376][ T1674] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 254.838573][ T1674] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 254.838928][ T1674] ? __copy_msghdr (net/socket.c:2556) [ 254.839127][ T1674] ___sys_sendmsg (net/socket.c:2686) [ 254.839323][ T1674] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 254.839620][ T1674] ? __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) [ 254.839882][ T1674] ? copy_msghdr_from_user (net/socket.c:2673) [ 254.840075][ T1674] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 254.840266][ T1674] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 254.840572][ T1674] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 254.840776][ T1674] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 254.840972][ T1674] ? __lock_release (kernel/locking/lockdep.c:5536) [ 254.841167][ T1674] __sys_sendmsg (net/socket.c:2716) [ 254.841462][ T1674] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 254.841708][ T1674] ? __sys_sendmsg_sock (net/socket.c:2701) [ 254.841934][ T1674] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 254.842126][ T1674] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 254.842429][ T1674] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 254.842667][ T1674] RIP: 0033:0x7ff83aa781d7 [ 254.842882][ T1674] 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) [ 254.843687][ T1674] RSP: 002b:00007ffee4ba17e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 254.843992][ T1674] RAX: ffffffffffffffda RBX: 00007ffee4ba1f10 RCX: 00007ff83aa781d7 [ 254.844388][ T1674] RDX: 0000000000000000 RSI: 00007ffee4ba1850 RDI: 0000000000000005 [ 254.844681][ T1674] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 254.845090][ T1674] R10: 00007ff83a974f60 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