[ 17.801087][ T231] ==================================================================
[ 17.801463][ T231] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 17.801761][ T231] Write of size 8 at addr 0000000000000000 by task packetdrill/231
[ 17.802125][ T231]
[ 17.802222][ T231] CPU: 0 UID: 0 PID: 231 Comm: packetdrill Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 17.802228][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.802230][ T231] Call Trace:
[ 17.802232][ T231]
[ 17.802235][ T231] dump_stack_lvl+0x82/0xc0
[ 17.802244][ T231] ? try_to_grab_pending+0x81/0x6c0
[ 17.802248][ T231] kasan_report+0xca/0x100
[ 17.802255][ T231] ? try_to_grab_pending+0x81/0x6c0
[ 17.802261][ T231] kasan_check_range+0x39/0x1b0
[ 17.802265][ T231] try_to_grab_pending+0x81/0x6c0
[ 17.802270][ T231] __cancel_work+0x7c/0x260
[ 17.802274][ T231] ? enable_delayed_work+0x10/0x10
[ 17.802279][ T231] ? qdisc_destroy+0x50/0x50
[ 17.802286][ T231] __cancel_work_sync+0x18/0xc0
[ 17.802291][ T231] __dev_close_many+0x1ce/0x810
[ 17.802296][ T231] ? netdev_notify_peers+0x20/0x20
[ 17.802300][ T231] ? netif_close_many+0x201/0x650
[ 17.802304][ T231] netif_close_many+0x201/0x650
[ 17.802308][ T231] ? __dev_close_many+0x810/0x810
[ 17.802312][ T231] ? netif_close_many_and_unlock+0x21/0x2a0
[ 17.802316][ T231] unregister_netdevice_many_notify+0x305/0x1b30
[ 17.802321][ T231] ? try_to_wake_up+0x16e/0xd80
[ 17.802328][ T231] ? sched_ttwu_pending+0x530/0x530
[ 17.802334][ T231] ? dev_ingress_queue_create+0x190/0x190
[ 17.802339][ T231] ? find_held_lock+0x2b/0x80
[ 17.802347][ T231] ? irqentry_exit+0x3b/0x80
[ 17.802352][ T231] ? lockdep_hardirqs_on+0x7c/0x110
[ 17.802357][ T231] unregister_netdevice_queue+0x29e/0x410
[ 17.802361][ T231] ? unregister_netdevice_many+0x20/0x20
[ 17.802365][ T231] ? queue_delayed_work_on+0x53/0xa0
[ 17.802371][ T231] __tun_detach+0xd4a/0x10d0
[ 17.802379][ T231] tun_chr_close+0xae/0x1c0
[ 17.802383][ T231] __fput+0x35c/0xa70
[ 17.802392][ T231] fput_close_sync+0xdd/0x1b0
[ 17.802396][ T231] ? alloc_file_clone+0xf0/0xf0
[ 17.802400][ T231] __x64_sys_close+0x7d/0xd0
[ 17.802405][ T231] do_syscall_64+0xc1/0xfd0
[ 17.802411][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 17.802416][ T231] RIP: 0033:0x4901eb
[ 17.802420][ 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
[ 17.802423][ T231] RSP: 002b:00007ffe6d49f3d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 17.802428][ T231] RAX: ffffffffffffffda RBX: 00007ffe6d49f930 RCX: 00000000004901eb
[ 17.802431][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 17.802432][ T231] RBP: 00007ffe6d49f410 R08: 0000000000000000 R09: 0000000000000000
[ 17.802435][ T231] R10: 000000002ed01f70 R11: 0000000000000293 R12: 00007ffe6d49f8a8
[ 17.802437][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 17.802443][ T231]
[ 17.802445][ T231] ==================================================================
[ 17.812256][ T231] Disabling lock debugging due to kernel taint
[ 17.812485][ T231] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 17.812738][ T231] #PF: supervisor write access in kernel mode
[ 17.812948][ T231] #PF: error_code(0x0002) - not-present page
[ 17.813159][ T231] PGD 9efc067 P4D 9efc067 PUD 24f8067 PMD 0
[ 17.813398][ T231] Oops: Oops: 0002 [#1] SMP KASAN
[ 17.813575][ T231] CPU: 0 UID: 0 PID: 231 Comm: packetdrill Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 17.813957][ T231] Tainted: [B]=BAD_PAGE
[ 17.814086][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.814317][ T231] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 17.814556][ 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
[ 17.815158][ T231] RSP: 0018:ffffc90000a87900 EFLAGS: 00010046
[ 17.815391][ T231] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8703e90a
[ 17.815649][ T231] RDX: fffffbfff164a0cd RSI: 0000000000000008 RDI: ffffffff8b250660
[ 17.815907][ T231] RBP: ffffc90000a87968 R08: 0000000000000001 R09: fffffbfff164a0cc
[ 17.816171][ T231] R10: ffffffff8b250667 R11: ffffc90000a873c0 R12: 0000000000000000
[ 17.816443][ T231] R13: 0000000000000286 R14: ffff8880057b0000 R15: dffffc0000000000
[ 17.816701][ T231] FS: 000000002ece63c0(0000) GS:ffff8880ab01b000(0000) knlGS:0000000000000000
[ 17.817006][ T231] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.817221][ T231] CR2: 0000000000000000 CR3: 0000000008f2b006 CR4: 0000000000772ef0
[ 17.817511][ T231] PKRU: 55555554
[ 17.817640][ T231] Call Trace:
[ 17.817777][ T231]
[ 17.817866][ T231] __cancel_work+0x7c/0x260
[ 17.818053][ T231] ? enable_delayed_work+0x10/0x10
[ 17.818230][ T231] ? qdisc_destroy+0x50/0x50
[ 17.818440][ T231] __cancel_work_sync+0x18/0xc0
[ 17.818614][ T231] __dev_close_many+0x1ce/0x810
[ 17.818791][ T231] ? netdev_notify_peers+0x20/0x20
[ 17.818964][ T231] ? netif_close_many+0x201/0x650
[ 17.819143][ T231] netif_close_many+0x201/0x650
[ 17.819309][ T231] ? __dev_close_many+0x810/0x810
[ 17.819501][ T231] ? netif_close_many_and_unlock+0x21/0x2a0
[ 17.819712][ T231] unregister_netdevice_many_notify+0x305/0x1b30
[ 17.819926][ T231] ? try_to_wake_up+0x16e/0xd80
[ 17.820102][ T231] ? sched_ttwu_pending+0x530/0x530
[ 17.820273][ T231] ? dev_ingress_queue_create+0x190/0x190
[ 17.820461][ T231] ? find_held_lock+0x2b/0x80
[ 17.820629][ T231] ? irqentry_exit+0x3b/0x80
[ 17.820800][ T231] ? lockdep_hardirqs_on+0x7c/0x110
[ 17.820982][ T231] unregister_netdevice_queue+0x29e/0x410
[ 17.821155][ T231] ? unregister_netdevice_many+0x20/0x20
[ 17.821323][ T231] ? queue_delayed_work_on+0x53/0xa0
[ 17.821514][ T231] __tun_detach+0xd4a/0x10d0
[ 17.821693][ T231] tun_chr_close+0xae/0x1c0
[ 17.821859][ T231] __fput+0x35c/0xa70
[ 17.822001][ T231] fput_close_sync+0xdd/0x1b0
[ 17.822168][ T231] ? alloc_file_clone+0xf0/0xf0
[ 17.822337][ T231] __x64_sys_close+0x7d/0xd0
[ 17.822522][ T231] do_syscall_64+0xc1/0xfd0
[ 17.822695][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 17.823004][ T231] RIP: 0033:0x4901eb
[ 17.823232][ 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
[ 17.824240][ T231] RSP: 002b:00007ffe6d49f3d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 17.824672][ T231] RAX: ffffffffffffffda RBX: 00007ffe6d49f930 RCX: 00000000004901eb
[ 17.825017][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 17.825276][ T231] RBP: 00007ffe6d49f410 R08: 0000000000000000 R09: 0000000000000000
[ 17.825638][ T231] R10: 000000002ed01f70 R11: 0000000000000293 R12: 00007ffe6d49f8a8
[ 17.825892][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 17.826158][ T231]
[ 17.826386][ T231] Modules linked in:
[ 17.826523][ T231] CR2: 0000000000000000
[ 17.826648][ T231] ---[ end trace 0000000000000000 ]---
[ 17.826816][ T231] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 17.827134][ 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
[ 17.827725][ T231] RSP: 0018:ffffc90000a87900 EFLAGS: 00010046
[ 17.828033][ T231] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8703e90a
[ 17.828283][ T231] RDX: fffffbfff164a0cd RSI: 0000000000000008 RDI: ffffffff8b250660
[ 17.828553][ T231] RBP: ffffc90000a87968 R08: 0000000000000001 R09: fffffbfff164a0cc
[ 17.828901][ T231] R10: ffffffff8b250667 R11: ffffc90000a873c0 R12: 0000000000000000
[ 17.829152][ T231] R13: 0000000000000286 R14: ffff8880057b0000 R15: dffffc0000000000
[ 17.829501][ T231] FS: 000000002ece63c0(0000) GS:ffff8880ab01b000(0000) knlGS:0000000000000000
[ 17.829790][ T231] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.830003][ T231] CR2: 0000000000000000 CR3: 0000000008f2b006 CR4: 0000000000772ef0
[ 17.830348][ T231] PKRU: 55555554
[ 17.830476][ T231] Kernel panic - not syncing: Fatal exception
[ 17.830776][ T231] Kernel Offset: 0x5a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 17.831268][ T231] ---[ end Kernel panic - not syncing: Fatal exception ]---
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