====================================== | [ 37.541720][ T328] ================================================================== | [ 37.542050][ T328] 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) | [ 37.542354][ T328] Write of size 8 at addr 0000000000000000 by task ip/328 | [ 37.542599][ T328] [ 37.542706][ T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.542709][ T328] Call Trace: [ 37.542711][ T328] [ 37.542713][ T328] dump_stack_lvl (lib/dump_stack.c:123) [ 37.542721][ T328] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 37.542724][ T328] kasan_report (mm/kasan/report.c:597) [ 37.542731][ T328] ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 37.542736][ T328] kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200) [ 37.542740][ T328] try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072) [ 37.542745][ T328] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 37.542748][ T328] ? enable_delayed_work (kernel/workqueue.c:4359) [ 37.542752][ T328] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 37.542756][ T328] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 37.542765][ T328] __cancel_work_sync (kernel/workqueue.c:4383) [ 37.542770][ T328] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 37.542778][ T328] ? netdev_notify_peers (net/core/dev.c:1891) [ 37.542782][ T328] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 37.542788][ T328] __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) [ 37.542791][ T328] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 37.542799][ T328] ? netif_set_allmulti (net/core/dev.c:9890) [ 37.542801][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.542808][ T328] netif_change_flags (net/core/dev.c:9989) [ 37.542812][ T328] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 37.542818][ T328] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 37.542823][ T328] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.542830][ T328] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 37.542835][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.542840][ T328] ? __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) [ 37.542844][ T328] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 37.542848][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 37.542856][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 37.542859][ T328] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 37.542862][ T328] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 37.542871][ T328] ? __create_object (mm/kmemleak.c:786) [ 37.542874][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.542877][ T328] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 37.542880][ T328] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 37.542884][ T328] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 37.542889][ T328] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 37.542894][ T328] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 37.542899][ T328] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 37.542903][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.542909][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 37.542912][ T328] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 37.542915][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.542919][ T328] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 37.542922][ T328] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 37.542926][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 37.542929][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.542936][ T328] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 37.542941][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 37.542945][ T328] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 37.542952][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 37.542955][ T328] ? 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) [ 37.542959][ T328] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 37.542963][ T328] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 37.542966][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.542972][ T328] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 37.542976][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 37.542980][ T328] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 37.542987][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 37.542991][ T328] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 37.542997][ T328] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 37.543000][ T328] ? __copy_msghdr (net/socket.c:2556) [ 37.543008][ T328] ___sys_sendmsg (net/socket.c:2686) [ 37.543011][ T328] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 37.543014][ T328] ? __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) [ 37.543020][ T328] ? copy_msghdr_from_user (net/socket.c:2673) [ 37.543025][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 37.543029][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.543035][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 37.543039][ T328] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 37.543048][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.543055][ T328] __sys_sendmsg (net/socket.c:2716) [ 37.543058][ T328] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 37.543062][ T328] ? __sys_sendmsg_sock (net/socket.c:2701) [ 37.543069][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 37.543073][ T328] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 37.543078][ T328] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 37.543082][ T328] RIP: 0033:0x7fafe91131d7 [ 37.543086][ T328] 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) [ 37.543090][ T328] RSP: 002b:00007fff285adee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.543094][ T328] RAX: ffffffffffffffda RBX: 00007fff285ae610 RCX: 00007fafe91131d7 [ 37.543096][ T328] RDX: 0000000000000000 RSI: 00007fff285adf50 RDI: 0000000000000005 [ 37.543098][ T328] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 37.543099][ T328] R10: 00007fafe900ff60 R11: 0000000000000246 R12: 0000000000000003 [ 37.543101][ T328] R13: 00000000691cc9e7 R14: 0000000000499600 R15: 0000000000000000 | [ 37.561989][ T328] #PF: error_code(0x0002) - not-present page | [ 37.562227][ T328] PGD c87e067 P4D c87e067 PUD f7ec067 PMD 0 | [ 37.562463][ T328] Oops: Oops: 0002 [#1] SMP KASAN | [ 37.563115][ T328] Tainted: [B]=BAD_PAGE [ 37.563250][ T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.563591][ T328] 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) [ 37.563824][ T328] 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 [ 37.564576][ T328] RSP: 0018:ffffc900006d6f40 EFLAGS: 00010046 [ 37.564806][ T328] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9444090a [ 37.565096][ T328] RDX: fffffbfff30cf2cd RSI: 0000000000000008 RDI: ffffffff98679660 [ 37.565359][ T328] RBP: ffffc900006d6fa8 R08: 0000000000000001 R09: fffffbfff30cf2cc [ 37.565630][ T328] R10: ffffffff98679667 R11: ffffc900006d6a00 R12: 0000000000000000 [ 37.566008][ T328] R13: 0000000000000282 R14: ffff88800b814000 R15: dffffc0000000000 [ 37.566280][ T328] FS: 00007fafe8f45800(0000) GS:ffff88809dd72000(0000) knlGS:0000000000000000 [ 37.566694][ T328] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.566917][ T328] CR2: 0000000000000000 CR3: 000000000c7e5002 CR4: 0000000000772ef0 [ 37.567177][ T328] PKRU: 55555554 [ 37.567322][ T328] Call Trace: [ 37.567570][ T328] [ 37.567671][ T328] __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364) [ 37.567863][ T328] ? enable_delayed_work (kernel/workqueue.c:4359) [ 37.568042][ T328] ? queue_delayed_work_on (kernel/workqueue.c:2590) [ 37.568219][ T328] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 37.568507][ T328] __cancel_work_sync (kernel/workqueue.c:4383) [ 37.568680][ T328] __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2)) [ 37.568862][ T328] ? netdev_notify_peers (net/core/dev.c:1891) [ 37.569043][ T328] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455) [ 37.569322][ T328] __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) [ 37.569505][ T328] ? __free_zapped_classes (kernel/locking/lockdep.c:5343) [ 37.569678][ T328] ? netif_set_allmulti (net/core/dev.c:9890) [ 37.569859][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.570136][ T328] netif_change_flags (net/core/dev.c:9989) [ 37.570316][ T328] do_setlink.constprop.0 (net/core/rtnetlink.c:3158) [ 37.570509][ T328] ? rtnl_newlink_create (net/core/rtnetlink.c:3036) [ 37.570682][ T328] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.570962][ T328] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) [ 37.571134][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.571306][ T328] ? __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) [ 37.571488][ T328] ? __mutex_handoff (kernel/locking/mutex.c:88) [ 37.571769][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 37.571944][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 37.572135][ T328] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 37.572310][ T328] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) [ 37.572595][ T328] ? __create_object (mm/kmemleak.c:786) [ 37.572774][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.572945][ T328] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071) [ 37.573115][ T328] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 37.573386][ T328] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 37.573575][ T328] ? __rtnl_newlink (net/core/rtnetlink.c:3922) [ 37.573747][ T328] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073) [ 37.573923][ T328] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 37.574197][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.574371][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 37.574548][ T328] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956) [ 37.574719][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.574998][ T328] ? __rtnl_newlink (net/core/rtnetlink.c:3963) [ 37.575175][ T328] rtnetlink_rcv_msg (net/core/rtnetlink.c:6958) [ 37.575346][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 37.575524][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.575807][ T328] netlink_rcv_skb (net/netlink/af_netlink.c:2550) [ 37.575982][ T328] ? rtnl_port_fill (net/core/rtnetlink.c:6861) [ 37.576151][ T328] ? netlink_ack (net/netlink/af_netlink.c:2527) [ 37.576327][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340) [ 37.576608][ T328] ? 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) [ 37.576788][ T328] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) [ 37.576963][ T328] ? netlink_attachskb (net/netlink/af_netlink.c:1329) [ 37.577135][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.577413][ T328] netlink_sendmsg (net/netlink/af_netlink.c:1894) [ 37.577591][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 37.577766][ T328] ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361) [ 37.577943][ T328] ? netlink_unicast (net/netlink/af_netlink.c:1813) [ 37.578220][ T328] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630) [ 37.578400][ T328] ? get_timestamp.constprop.0 (net/socket.c:2576) [ 37.578623][ T328] ? __copy_msghdr (net/socket.c:2556) [ 37.578904][ T328] ___sys_sendmsg (net/socket.c:2686) [ 37.579074][ T328] ? kasan_record_aux_stack (mm/kasan/generic.c:559) [ 37.579253][ T328] ? __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) [ 37.579475][ T328] ? copy_msghdr_from_user (net/socket.c:2673) [ 37.579757][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 37.579933][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 37.580107][ T328] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 37.580282][ T328] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65) [ 37.580571][ T328] ? __lock_release (kernel/locking/lockdep.c:5536) [ 37.580749][ T328] __sys_sendmsg (net/socket.c:2716) [ 37.580926][ T328] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148) [ 37.581138][ T328] ? __sys_sendmsg_sock (net/socket.c:2701) [ 37.581424][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 37.581607][ T328] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 37.581786][ T328] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 37.582000][ T328] RIP: 0033:0x7fafe91131d7 [ 37.582194][ T328] 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) [ 37.582937][ T328] RSP: 002b:00007fff285adee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.583200][ T328] RAX: ffffffffffffffda RBX: 00007fff285ae610 RCX: 00007fafe91131d7 [ 37.583465][ T328] RDX: 0000000000000000 RSI: 00007fff285adf50 RDI: 0000000000000005 [ 37.583834][ T328] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 37.584101][ T328] R10: 00007fafe900ff60 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