panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/main/kernel/sys/net/if_tun.c", line 305 Starting stack trace... panic(ffffffff825763f8) at panic+0x155 sys/kern/subr_prf.c:233 __assert(ffffffff825e6bb6,ffffffff82614da8,131,ffffffff825f6a71) at __assert+0x25 sys/kern/subr_prf.c:161 tun_clone_destroy(ffff800000cf9800) at tun_clone_destroy+0x234 sys/net/if_tun.c:305 if_clone_destroy(ffff800022f43b10) at if_clone_destroy+0x132 sys/net/if.c:1219 sys_ioctl(ffff800024ad5510,ffff800022f43c28,ffff800022f43c80) at sys_ioctl+0x49e syscall(ffff800022f43cf0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf46e49af330, count: 250 End of stack trace. syncing disks...23 11 done dump to dev 4,1 not possible rebooting... SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000080000000 = 2048 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID 29e59ed8-cf7d-ff95-0f1a-46f3bc188dc1 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f2730: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... >> OpenBSD/amd64 BOOT 3.53 boot> set $lines = 0 set: syntax error boot> set $maxwidth = 0 set: syntax error boot> show panic boot: illegal argument panic boot> trace boot> show registers boot> show proc boot> ps boot> show all locks boot> show malloc boot> show all pools boot> machine ddbcpu 0 machine: syntax error boot> trace boot> machine ddbcpu 1 machine: syntax error boot> trace