panic: kernel diagnostic assertion "map->limit == rtmap_limit" failed: file "/syzkaller/managers/multicore/kernel/sys/net/rtable.c", line 132
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*297488  39304      0           0  0x4000000    0K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834d7959) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8351594a,ffffffff8350d9a8,84,ffffffff83567428) at __assert+0x29 sys/kern/subr_prf.c:-1
rtmap_grow(cf,21) at rtmap_grow+0x24f
rtable_add(ce) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline]
rtable_add(ce) at rtable_add+0x2d9 sys/net/rtable.c:223
if_createrdomain(ce,ffff80000160f000) at if_createrdomain+0x40 sys/net/if.c:2046
ifioctl(ffff8000015ac5f0,8020699f,ffff80002a343e80,ffff800045fead18) at ifioctl+0x1c52 sys/net/if.c:2395
sys_ioctl(ffff800045fead18,ffff80002a344060,ffff80002a343fb0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80002a344060) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a344060) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x85cb54c6600, 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.
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: kernel diagnostic assertion "map->limit == rtmap_limit" failed: file "/syzkaller/managers/multicore/kernel/sys/net/rtable.c", line 132
ddb{0}> show kasan
No such command
ddb{0}>