====================================== | [ 272.027264][ T1675] ================================================================== | [ 272.027642][ T1675] 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) | [ 272.027991][ T1675] Write of size 8 at addr 0000000000000000 by task ip/1675 | [ 272.028294][ T1675] [ 272.028413][ T1675] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 272.028416][ T1675] Call Trace: [ 272.028421][ T1675] [ 272.028423][ T1675] dump_stack_lvl (lib/dump_stack.c:123) [ 272.028437][ T1675] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 272.028442][ T1675] kasan_report (mm/kasan/report.c:597) [ 272.028450][ T1675] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 272.028455][ T1675] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 272.028459][ T1675] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 272.028465][ T1675] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 272.028468][ T1675] ? enable_delayed_work (kernel/workqueue.c:4359) [ 272.028472][ T1675] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 272.028476][ T1675] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 272.028483][ T1675] __cancel_work_sync (kernel/workqueue.c:4383) [ 272.028487][ T1675] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 272.028497][ T1675] ? netdev_notify_peers (net/core/dev.c:1891) [ 272.028501][ T1675] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 272.028510][ T1675] __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) [ 272.028513][ T1675] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 272.028520][ T1675] ? netif_set_allmulti (net/core/dev.c:9890) [ 272.028523][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.028529][ T1675] netif_change_flags (net/core/dev.c:9989) [ 272.028533][ T1675] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 272.028539][ T1675] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 272.028545][ T1675] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 272.028554][ T1675] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 272.028559][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.028565][ T1675] ? __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) [ 272.028569][ T1675] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 272.028572][ T1675] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 272.028576][ T1675] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 272.028579][ T1675] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 272.028583][ T1675] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 272.028592][ T1675] ? __create_object (mm/kmemleak.c:786) [ 272.028597][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.028601][ T1675] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 272.028604][ T1675] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 272.028607][ T1675] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 272.028615][ T1675] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 272.028620][ T1675] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 272.028625][ T1675] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 272.028628][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.028634][ T1675] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 272.028638][ T1675] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 272.028641][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.028645][ T1675] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 272.028649][ T1675] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 272.028652][ T1675] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 272.028655][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.028662][ T1675] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 272.028669][ T1675] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 272.028672][ T1675] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 272.028684][ T1675] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 272.028689][ T1675] ? 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) [ 272.028695][ T1675] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 272.028703][ T1675] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 272.028710][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.028716][ T1675] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 272.028721][ T1675] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 272.028724][ T1675] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 272.028734][ T1675] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 272.028737][ T1675] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 272.028744][ T1675] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 272.028747][ T1675] ? __copy_msghdr (net/socket.c:2556) [ 272.028755][ T1675] ___sys_sendmsg (net/socket.c:2686) [ 272.028758][ T1675] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 272.028761][ T1675] ? __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) [ 272.028767][ T1675] ? copy_msghdr_from_user (net/socket.c:2673) [ 272.028773][ T1675] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 272.028777][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.028783][ T1675] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 272.028787][ T1675] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 272.028798][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.028808][ T1675] __sys_sendmsg (net/socket.c:2716) [ 272.028814][ T1675] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 272.028823][ T1675] ? __sys_sendmsg_sock (net/socket.c:2701) [ 272.028836][ T1675] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 272.028843][ T1675] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 272.028852][ T1675] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 272.028856][ T1675] RIP: 0033:0x7faded4c61d7 [ 272.028862][ T1675] 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) [ 272.028865][ T1675] RSP: 002b:00007ffea900b308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 272.028872][ T1675] RAX: ffffffffffffffda RBX: 00007ffea900ba30 RCX: 00007faded4c61d7 [ 272.028875][ T1675] RDX: 0000000000000000 RSI: 00007ffea900b370 RDI: 0000000000000005 [ 272.028878][ T1675] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 272.028880][ T1675] R10: 00007faded3c2f60 R11: 0000000000000246 R12: 0000000000000003 [ 272.028882][ T1675] R13: 00000000691cbe3a R14: 0000000000499600 R15: 0000000000000000 | [ 272.047479][ T1675] #PF: error_code(0x0002) - not-present page | [ 272.047706][ T1675] PGD 5926067 P4D 5926067 PUD 12656067 PMD 0 | [ 272.047940][ T1675] Oops: Oops: 0002 [#1] SMP KASAN | [ 272.048494][ T1675] Tainted: [B]=BAD_PAGE [ 272.048637][ T1675] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 272.048853][ T1675] 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) [ 272.049131][ T1675] 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 [ 272.049769][ T1675] RSP: 0018:ffffc90004006f40 EFLAGS: 00010046 [ 272.050040][ T1675] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffae84090a [ 272.050308][ T1675] RDX: fffffbfff654f2cd RSI: 0000000000000008 RDI: ffffffffb2a79660 [ 272.050583][ T1675] RBP: ffffc90004006fa8 R08: 0000000000000001 R09: fffffbfff654f2cc [ 272.050857][ T1675] R10: ffffffffb2a79667 R11: ffffc90004006a00 R12: 0000000000000000 [ 272.051130][ T1675] R13: 0000000000000282 R14: ffff8880118bc000 R15: dffffc0000000000 [ 272.051411][ T1675] FS: 00007faded2f8800(0000) GS:ffff888083972000(0000) knlGS:0000000000000000 [ 272.051723][ T1675] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 272.051976][ T1675] CR2: 0000000000000000 CR3: 0000000011fa8005 CR4: 0000000000772ef0 [ 272.052240][ T1675] PKRU: 55555554 [ 272.052481][ T1675] Call Trace: [ 272.052621][ T1675] [ 272.052736][ T1675] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 272.052934][ T1675] ? enable_delayed_work (kernel/workqueue.c:4359) [ 272.053112][ T1675] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 272.053399][ T1675] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 272.053611][ T1675] __cancel_work_sync (kernel/workqueue.c:4383) [ 272.053796][ T1675] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 272.054007][ T1675] ? netdev_notify_peers (net/core/dev.c:1891) [ 272.054308][ T1675] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 272.054497][ T1675] __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) [ 272.054691][ T1675] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 272.054893][ T1675] ? netif_set_allmulti (net/core/dev.c:9890) [ 272.055085][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.055271][ T1675] netif_change_flags (net/core/dev.c:9989) [ 272.055456][ T1675] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 272.055648][ T1675] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 272.055954][ T1675] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 272.056142][ T1675] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 272.056324][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.056493][ T1675] ? __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) [ 272.056776][ T1675] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 272.056964][ T1675] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 272.057138][ T1675] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 272.057309][ T1675] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 272.057595][ T1675] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 272.057773][ T1675] ? __create_object (mm/kmemleak.c:786) [ 272.057960][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.058130][ T1675] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 272.058406][ T1675] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 272.058591][ T1675] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 272.058763][ T1675] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 272.058946][ T1675] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 272.059118][ T1675] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 272.059295][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.059467][ T1675] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 272.059641][ T1675] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 272.059931][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.060102][ T1675] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 272.060276][ T1675] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 272.060448][ T1675] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 272.060730][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.060948][ T1675] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 272.061122][ T1675] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 272.061291][ T1675] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 272.061580][ T1675] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 272.061791][ T1675] ? 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) [ 272.061983][ T1675] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 272.062173][ T1675] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 272.062462][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.062656][ T1675] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 272.062842][ T1675] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 272.063039][ T1675] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 272.063326][ T1675] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 272.063517][ T1675] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 272.063702][ T1675] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 272.063929][ T1675] ? __copy_msghdr (net/socket.c:2556) [ 272.064223][ T1675] ___sys_sendmsg (net/socket.c:2686) [ 272.064450][ T1675] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 272.064647][ T1675] ? __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) [ 272.064895][ T1675] ? copy_msghdr_from_user (net/socket.c:2673) [ 272.065193][ T1675] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 272.065377][ T1675] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 272.065574][ T1675] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 272.065758][ T1675] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 272.066072][ T1675] ? __lock_release (kernel/locking/lockdep.c:5536) [ 272.066263][ T1675] __sys_sendmsg (net/socket.c:2716) [ 272.066462][ T1675] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 272.066801][ T1675] ? __sys_sendmsg_sock (net/socket.c:2701) [ 272.067005][ T1675] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 272.067193][ T1675] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 272.067384][ T1675] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 272.067733][ T1675] RIP: 0033:0x7faded4c61d7 [ 272.067949][ T1675] 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) [ 272.068756][ T1675] RSP: 002b:00007ffea900b308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 272.069053][ T1675] RAX: ffffffffffffffda RBX: 00007ffea900ba30 RCX: 00007faded4c61d7 [ 272.069341][ T1675] RDX: 0000000000000000 RSI: 00007ffea900b370 RDI: 0000000000000005 [ 272.069744][ T1675] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 272.070067][ T1675] R10: 00007faded3c2f60 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