[ 17.254564][ T231] ==================================================================
[ 17.255004][ T231] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 17.255399][ T231] Write of size 8 at addr 0000000000000000 by task packetdrill/231
[ 17.255821][ T231]
[ 17.255955][ T231] CPU: 3 UID: 0 PID: 231 Comm: packetdrill Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 17.255963][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.255965][ T231] Call Trace:
[ 17.255968][ T231]
[ 17.255971][ T231] dump_stack_lvl+0x82/0xc0
[ 17.255981][ T231] ? try_to_grab_pending+0x81/0x6c0
[ 17.255987][ T231] kasan_report+0xca/0x100
[ 17.255996][ T231] ? try_to_grab_pending+0x81/0x6c0
[ 17.256005][ T231] kasan_check_range+0x39/0x1b0
[ 17.256013][ T231] try_to_grab_pending+0x81/0x6c0
[ 17.256020][ T231] __cancel_work+0x7c/0x260
[ 17.256026][ T231] ? enable_delayed_work+0x10/0x10
[ 17.256033][ T231] ? qdisc_destroy+0x50/0x50
[ 17.256042][ T231] __cancel_work_sync+0x18/0xc0
[ 17.256049][ T231] __dev_close_many+0x1ce/0x810
[ 17.256056][ T231] ? netdev_notify_peers+0x20/0x20
[ 17.256062][ T231] ? netif_close_many+0x201/0x650
[ 17.256068][ T231] netif_close_many+0x201/0x650
[ 17.256073][ T231] ? rcu_is_watching+0x12/0xb0
[ 17.256082][ T231] ? __dev_close_many+0x810/0x810
[ 17.256087][ T231] ? netif_close_many_and_unlock+0x21/0x2a0
[ 17.256094][ T231] unregister_netdevice_many_notify+0x305/0x1b30
[ 17.256103][ T231] ? sched_ttwu_pending+0x530/0x530
[ 17.256110][ T231] ? dev_ingress_queue_create+0x190/0x190
[ 17.256118][ T231] ? irqentry_exit+0x3b/0x80
[ 17.256124][ T231] ? lockdep_hardirqs_on+0x7c/0x110
[ 17.256131][ T231] unregister_netdevice_queue+0x29e/0x410
[ 17.256137][ T231] ? unregister_netdevice_many+0x20/0x20
[ 17.256144][ T231] ? queue_delayed_work_on+0x53/0xa0
[ 17.256151][ T231] __tun_detach+0xd4a/0x10d0
[ 17.256162][ T231] tun_chr_close+0xae/0x1c0
[ 17.256168][ T231] __fput+0x35c/0xa70
[ 17.256179][ T231] fput_close_sync+0xdd/0x1b0
[ 17.256184][ T231] ? alloc_file_clone+0xf0/0xf0
[ 17.256191][ T231] __x64_sys_close+0x7d/0xd0
[ 17.256197][ T231] do_syscall_64+0xc1/0xfd0
[ 17.256206][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 17.256212][ T231] RIP: 0033:0x4901eb
[ 17.256218][ 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
[ 17.256222][ T231] RSP: 002b:00007fff22d13900 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 17.256227][ T231] RAX: ffffffffffffffda RBX: 00007fff22d13e60 RCX: 00000000004901eb
[ 17.256231][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 17.256233][ T231] RBP: 00007fff22d13940 R08: 0000000000000000 R09: 0000000000000000
[ 17.256236][ T231] R10: 0000000015b33f50 R11: 0000000000000293 R12: 00007fff22d13dd8
[ 17.256238][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 17.256248][ T231]
[ 17.256250][ T231] ==================================================================
[ 17.269803][ T231] Disabling lock debugging due to kernel taint
[ 17.270131][ T231] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 17.270525][ T231] #PF: supervisor write access in kernel mode
[ 17.270840][ T231] #PF: error_code(0x0002) - not-present page
[ 17.271157][ T231] PGD c321067 P4D c321067 PUD bd57067 PMD 0
[ 17.271490][ T231] Oops: Oops: 0002 [#1] SMP KASAN
[ 17.271756][ T231] CPU: 3 UID: 0 PID: 231 Comm: packetdrill Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 17.272328][ T231] Tainted: [B]=BAD_PAGE
[ 17.272524][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.272846][ T231] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 17.273185][ 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
[ 17.274081][ T231] RSP: 0018:ffffc90000ad7900 EFLAGS: 00010046
[ 17.274417][ T231] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8dc3e90a
[ 17.274797][ T231] RDX: fffffbfff23ca0cd RSI: 0000000000000008 RDI: ffffffff91e50660
[ 17.275171][ T231] RBP: ffffc90000ad7968 R08: 0000000000000001 R09: fffffbfff23ca0cc
[ 17.275544][ T231] R10: ffffffff91e50667 R11: ffffc90000ad73c0 R12: 0000000000000000
[ 17.275926][ T231] R13: 0000000000000286 R14: ffff888008c68000 R15: dffffc0000000000
[ 17.276307][ T231] FS: 0000000015b2c3c0(0000) GS:ffff8880a459b000(0000) knlGS:0000000000000000
[ 17.276756][ T231] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.277088][ T231] CR2: 0000000000000000 CR3: 00000000088e0002 CR4: 0000000000772ef0
[ 17.277478][ T231] PKRU: 55555554
[ 17.277692][ T231] Call Trace:
[ 17.277884][ T231]
[ 17.278021][ T231] __cancel_work+0x7c/0x260
[ 17.278290][ T231] ? enable_delayed_work+0x10/0x10
[ 17.278558][ T231] ? qdisc_destroy+0x50/0x50
[ 17.278819][ T231] __cancel_work_sync+0x18/0xc0
[ 17.279113][ T231] __dev_close_many+0x1ce/0x810
[ 17.279391][ T231] ? netdev_notify_peers+0x20/0x20
[ 17.279653][ T231] ? netif_close_many+0x201/0x650
[ 17.279915][ T231] netif_close_many+0x201/0x650
[ 17.280172][ T231] ? rcu_is_watching+0x12/0xb0
[ 17.280436][ T231] ? __dev_close_many+0x810/0x810
[ 17.280691][ T231] ? netif_close_many_and_unlock+0x21/0x2a0
[ 17.281013][ T231] unregister_netdevice_many_notify+0x305/0x1b30
[ 17.281342][ T231] ? sched_ttwu_pending+0x530/0x530
[ 17.281605][ T231] ? dev_ingress_queue_create+0x190/0x190
[ 17.281864][ T231] ? irqentry_exit+0x3b/0x80
[ 17.282124][ T231] ? lockdep_hardirqs_on+0x7c/0x110
[ 17.282385][ T231] unregister_netdevice_queue+0x29e/0x410
[ 17.282644][ T231] ? unregister_netdevice_many+0x20/0x20
[ 17.282898][ T231] ? queue_delayed_work_on+0x53/0xa0
[ 17.283154][ T231] __tun_detach+0xd4a/0x10d0
[ 17.283422][ T231] tun_chr_close+0xae/0x1c0
[ 17.283677][ T231] __fput+0x35c/0xa70
[ 17.283877][ T231] fput_close_sync+0xdd/0x1b0
[ 17.284133][ T231] ? alloc_file_clone+0xf0/0xf0
[ 17.284391][ T231] __x64_sys_close+0x7d/0xd0
[ 17.284646][ T231] do_syscall_64+0xc1/0xfd0
[ 17.284905][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 17.285214][ T231] RIP: 0033:0x4901eb
[ 17.285415][ 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
[ 17.286332][ T231] RSP: 002b:00007fff22d13900 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 17.286712][ T231] RAX: ffffffffffffffda RBX: 00007fff22d13e60 RCX: 00000000004901eb
[ 17.287085][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 17.287461][ T231] RBP: 00007fff22d13940 R08: 0000000000000000 R09: 0000000000000000
[ 17.287850][ T231] R10: 0000000015b33f50 R11: 0000000000000293 R12: 00007fff22d13dd8
[ 17.288237][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 17.288619][ T231]
[ 17.288810][ T231] Modules linked in:
[ 17.289007][ T231] CR2: 0000000000000000
[ 17.289199][ T231] ---[ end trace 0000000000000000 ]---
[ 17.289446][ T231] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 17.289782][ 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
[ 17.290670][ T231] RSP: 0018:ffffc90000ad7900 EFLAGS: 00010046
[ 17.290984][ T231] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8dc3e90a
[ 17.291363][ T231] RDX: fffffbfff23ca0cd RSI: 0000000000000008 RDI: ffffffff91e50660
[ 17.291735][ T231] RBP: ffffc90000ad7968 R08: 0000000000000001 R09: fffffbfff23ca0cc
[ 17.292106][ T231] R10: ffffffff91e50667 R11: ffffc90000ad73c0 R12: 0000000000000000
[ 17.292478][ T231] R13: 0000000000000286 R14: ffff888008c68000 R15: dffffc0000000000
[ 17.292860][ T231] FS: 0000000015b2c3c0(0000) GS:ffff8880a459b000(0000) knlGS:0000000000000000
[ 17.293299][ T231] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.293618][ T231] CR2: 0000000000000000 CR3: 00000000088e0002 CR4: 0000000000772ef0
[ 17.293995][ T231] PKRU: 55555554
[ 17.294184][ T231] Kernel panic - not syncing: Fatal exception
[ 17.294599][ T231] Kernel Offset: 0xc600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 17.295217][ T231] ---[ end Kernel panic - not syncing: Fatal exception ]---
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