panic: kernel diagnostic assertion "map->limit == rtmap_limit" failed: file "/syzkaller/managers/main/kernel/sys/net/rtable.c", line 132 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *319472 74690 0 0 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83377ca4) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff833b51f8,ffffffff8338fc49,84,ffffffff83405e34) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(17,21) at rtmap_grow+0x1f2 rtable_add(16) at rtable_add+0x289 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(16) at rtable_add+0x289 sys/net/rtable.c:223 if_createrdomain(16,ffff800000c47000) at if_createrdomain+0x40 sys/net/if.c:2045 ifioctl(ffff8000015d9c38,8020699f,ffff800037d2d2a0,ffff80003c93bca8) at ifioctl+0x1be2 sys/net/if.c:2394 sys_ioctl(ffff80003c93bca8,ffff800037d2d470,ffff800037d2d3c0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff800037d2d470) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800037d2d470) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e869b8010, count: 5 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.