panic: ASan: Invalid access, 8-byte read at 0xfffffe0079d37b98, UMAUseAfterFree(fd)
cpuid = 1
time = 2147483682
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056df6050
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056df61b0
vpanic() at vpanic+0x257/frame 0xfffffe0056df6370
panic() at panic+0xb5/frame 0xfffffe0056df6430
kasan_report() at kasan_report+0xdf/frame 0xfffffe0056df6500
ip6_freemoptions() at ip6_freemoptions+0x1ff/frame 0xfffffe0056df6560
in_pcbfree() at in_pcbfree+0x682/frame 0xfffffe0056df65b0
sorele_locked() at sorele_locked+0x264/frame 0xfffffe0056df65f0
soclose() at soclose+0x41f/frame 0xfffffe0056df66e0
_fdrop() at _fdrop+0x5c/frame 0xfffffe0056df6710
closef() at closef+0x655/frame 0xfffffe0056df68f0
fdescfree() at fdescfree+0xa5e/frame 0xfffffe0056df6ad0
fork1() at fork1+0x833/frame 0xfffffe0056df6bf0
sys_rfork() at sys_rfork+0x1b7/frame 0xfffffe0056df6d10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe0056df6f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0056df6f30
--- syscall (198, FreeBSD ELF64, __syscall), rip = 0x3a372a, rsp = 0x82522ff08, rbp = 0x82522ff80 ---
KDB: enter: panic
[ thread pid 1327 tid 100819 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25b6f77(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db>