panic: kernel diagnostic assertion "map->limit == rtmap_limit" failed: file "/syzkaller/managers/multicore/kernel/sys/net/rtable.c", line 131 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 121441 50761 0 0 0 0 syz-executor * 21154 50761 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e69d4) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83099abb,ffffffff82fd7642,83,ffffffff830d7657) at __assert+0x29 rtable_init() at rtable_init rtable_add(16) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:373 [inline] rtable_add(16) at rtable_add+0x2d9 sys/net/rtable.c:222 if_createrdomain(16,ffff8000015b6000) at if_createrdomain+0x40 sys/net/if.c:1947 ifioctl(ffff8000015e9768,8020699f,ffff8000371c3800,ffff8000ffff6020) at ifioctl+0x1a1e sys/net/if.c:2296 sys_ioctl(ffff8000ffff6020,ffff8000371c39e0,ffff8000371c3930) at sys_ioctl+0x67c syscall(ffff8000371c39e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371c39e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd15e7e2a430, 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.