[ 17.789340][ T231] ==================================================================
[ 17.789805][ T231] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 17.790214][ T231] Write of size 8 at addr 0000000000000000 by task packetdrill/231
[ 17.790588][ T231]
[ 17.790715][ T231] CPU: 1 UID: 0 PID: 231 Comm: packetdrill Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 17.790721][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.790723][ T231] Call Trace:
[ 17.790726][ T231]
[ 17.790730][ T231] dump_stack_lvl+0x82/0xc0
[ 17.790745][ T231] ? try_to_grab_pending+0x81/0x6c0
[ 17.790750][ T231] kasan_report+0xca/0x100
[ 17.790768][ T231] ? try_to_grab_pending+0x81/0x6c0
[ 17.790775][ T231] kasan_check_range+0x39/0x1b0
[ 17.790780][ T231] try_to_grab_pending+0x81/0x6c0
[ 17.790785][ T231] __cancel_work+0x7c/0x260
[ 17.790788][ T231] ? enable_delayed_work+0x10/0x10
[ 17.790793][ T231] ? qdisc_destroy+0x50/0x50
[ 17.790799][ T231] __cancel_work_sync+0x18/0xc0
[ 17.790804][ T231] __dev_close_many+0x1ce/0x810
[ 17.790808][ T231] ? netdev_notify_peers+0x20/0x20
[ 17.790811][ T231] ? netif_close_many+0x201/0x650
[ 17.790816][ T231] netif_close_many+0x201/0x650
[ 17.790819][ T231] ? __dev_close_many+0x810/0x810
[ 17.790823][ T231] ? netif_close_many_and_unlock+0x21/0x2a0
[ 17.790827][ T231] unregister_netdevice_many_notify+0x305/0x1b30
[ 17.790832][ T231] ? try_to_wake_up+0x16e/0xd80
[ 17.790837][ T231] ? sched_ttwu_pending+0x530/0x530
[ 17.790840][ T231] ? dev_ingress_queue_create+0x190/0x190
[ 17.790843][ T231] ? find_held_lock+0x2b/0x80
[ 17.790848][ T231] ? irqentry_exit+0x3b/0x80
[ 17.790860][ T231] ? lockdep_hardirqs_on+0x7c/0x110
[ 17.790864][ T231] unregister_netdevice_queue+0x29e/0x410
[ 17.790868][ T231] ? unregister_netdevice_many+0x20/0x20
[ 17.790872][ T231] ? queue_delayed_work_on+0x53/0xa0
[ 17.790879][ T231] __tun_detach+0xd4a/0x10d0
[ 17.790886][ T231] tun_chr_close+0xae/0x1c0
[ 17.790890][ T231] __fput+0x35c/0xa70
[ 17.790902][ T231] fput_close_sync+0xdd/0x1b0
[ 17.790905][ T231] ? alloc_file_clone+0xf0/0xf0
[ 17.790911][ T231] __x64_sys_close+0x7d/0xd0
[ 17.790914][ T231] do_syscall_64+0xc1/0xfd0
[ 17.790919][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 17.790922][ T231] RIP: 0033:0x4901eb
[ 17.790929][ T231] Code: 03 00 00 00 0f 05 48 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 c3 78 04 00 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 21 79 04 00 8b 44
[ 17.790932][ T231] RSP: 002b:00007fffd328db90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 17.790937][ T231] RAX: ffffffffffffffda RBX: 00007fffd328e0f0 RCX: 00000000004901eb
[ 17.790940][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 17.790941][ T231] RBP: 00007fffd328dbd0 R08: 0000000000000000 R09: 0000000000000000
[ 17.790943][ T231] R10: 0000000000000004 R11: 0000000000000293 R12: 00007fffd328e068
[ 17.790945][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 17.790951][ T231]
[ 17.790953][ T231] ==================================================================
[ 17.801611][ T231] Disabling lock debugging due to kernel taint
[ 17.801849][ T231] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 17.802139][ T231] #PF: supervisor write access in kernel mode
[ 17.802365][ T231] #PF: error_code(0x0002) - not-present page
[ 17.802621][ T231] PGD 8e68067 P4D 8e68067 PUD 8c06067 PMD 0
[ 17.802868][ T231] Oops: Oops: 0002 [#1] SMP KASAN
[ 17.803104][ T231] CPU: 1 UID: 0 PID: 231 Comm: packetdrill Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 17.803674][ T231] Tainted: [B]=BAD_PAGE
[ 17.803811][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.804054][ T231] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 17.804370][ T231] 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
[ 17.805067][ T231] RSP: 0018:ffffc90000af7900 EFLAGS: 00010046
[ 17.805303][ T231] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9423e90a
[ 17.805597][ T231] RDX: fffffbfff308a0cd RSI: 0000000000000008 RDI: ffffffff98450660
[ 17.805889][ T231] RBP: ffffc90000af7968 R08: 0000000000000001 R09: fffffbfff308a0cc
[ 17.806184][ T231] R10: ffffffff98450667 R11: ffffc90000af73c0 R12: 0000000000000000
[ 17.806487][ T231] R13: 0000000000000286 R14: ffff88800969c000 R15: dffffc0000000000
[ 17.806768][ T231] FS: 0000000002f823c0(0000) GS:ffff88809de9b000(0000) knlGS:0000000000000000
[ 17.807114][ T231] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.807400][ T231] CR2: 0000000000000000 CR3: 0000000009a44001 CR4: 0000000000772ef0
[ 17.807673][ T231] PKRU: 55555554
[ 17.807806][ T231] Call Trace:
[ 17.807955][ T231]
[ 17.808049][ T231] __cancel_work+0x7c/0x260
[ 17.808280][ T231] ? enable_delayed_work+0x10/0x10
[ 17.808475][ T231] ? qdisc_destroy+0x50/0x50
[ 17.808661][ T231] __cancel_work_sync+0x18/0xc0
[ 17.808830][ T231] __dev_close_many+0x1ce/0x810
[ 17.809012][ T231] ? netdev_notify_peers+0x20/0x20
[ 17.809192][ T231] ? netif_close_many+0x201/0x650
[ 17.809366][ T231] netif_close_many+0x201/0x650
[ 17.809593][ T231] ? __dev_close_many+0x810/0x810
[ 17.809776][ T231] ? netif_close_many_and_unlock+0x21/0x2a0
[ 17.809995][ T231] unregister_netdevice_many_notify+0x305/0x1b30
[ 17.810230][ T231] ? try_to_wake_up+0x16e/0xd80
[ 17.810427][ T231] ? sched_ttwu_pending+0x530/0x530
[ 17.810604][ T231] ? dev_ingress_queue_create+0x190/0x190
[ 17.810812][ T231] ? find_held_lock+0x2b/0x80
[ 17.810988][ T231] ? irqentry_exit+0x3b/0x80
[ 17.811179][ T231] ? lockdep_hardirqs_on+0x7c/0x110
[ 17.811363][ T231] unregister_netdevice_queue+0x29e/0x410
[ 17.811559][ T231] ? unregister_netdevice_many+0x20/0x20
[ 17.811740][ T231] ? queue_delayed_work_on+0x53/0xa0
[ 17.811915][ T231] __tun_detach+0xd4a/0x10d0
[ 17.812104][ T231] tun_chr_close+0xae/0x1c0
[ 17.812283][ T231] __fput+0x35c/0xa70
[ 17.812434][ T231] fput_close_sync+0xdd/0x1b0
[ 17.812647][ T231] ? alloc_file_clone+0xf0/0xf0
[ 17.812929][ T231] __x64_sys_close+0x7d/0xd0
[ 17.813145][ T231] do_syscall_64+0xc1/0xfd0
[ 17.813369][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 17.813675][ T231] RIP: 0033:0x4901eb
[ 17.813844][ T231] Code: 03 00 00 00 0f 05 48 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 c3 78 04 00 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 21 79 04 00 8b 44
[ 17.814607][ T231] RSP: 002b:00007fffd328db90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 17.814930][ T231] RAX: ffffffffffffffda RBX: 00007fffd328e0f0 RCX: 00000000004901eb
[ 17.815285][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 17.815669][ T231] RBP: 00007fffd328dbd0 R08: 0000000000000000 R09: 0000000000000000
[ 17.816047][ T231] R10: 0000000000000004 R11: 0000000000000293 R12: 00007fffd328e068
[ 17.816363][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 17.816739][ T231]
[ 17.816919][ T231] Modules linked in:
[ 17.817146][ T231] CR2: 0000000000000000
[ 17.817304][ T231] ---[ end trace 0000000000000000 ]---
[ 17.817519][ T231] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 17.817842][ T231] 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
[ 17.818667][ T231] RSP: 0018:ffffc90000af7900 EFLAGS: 00010046
[ 17.818933][ T231] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9423e90a
[ 17.819234][ T231] RDX: fffffbfff308a0cd RSI: 0000000000000008 RDI: ffffffff98450660
[ 17.819566][ T231] RBP: ffffc90000af7968 R08: 0000000000000001 R09: fffffbfff308a0cc
[ 17.819915][ T231] R10: ffffffff98450667 R11: ffffc90000af73c0 R12: 0000000000000000
[ 17.820233][ T231] R13: 0000000000000286 R14: ffff88800969c000 R15: dffffc0000000000
[ 17.820562][ T231] FS: 0000000002f823c0(0000) GS:ffff88809de9b000(0000) knlGS:0000000000000000
[ 17.820922][ T231] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.821190][ T231] CR2: 0000000000000000 CR3: 0000000009a44001 CR4: 0000000000772ef0
[ 17.821514][ T231] PKRU: 55555554
[ 17.821671][ T231] Kernel panic - not syncing: Fatal exception
[ 17.822014][ T231] Kernel Offset: 0x12c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 17.822502][ T231] ---[ end Kernel panic - not syncing: Fatal exception ]---
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