Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x0
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81a74900
stack pointer	        = 0x28:0xfffffe00572a3360
frame pointer	        = 0x28:0xfffffe00572a33d0
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 1614 (syz-executor)
rdi: 0000000000000000 rsi: 0000000000000000 rdx: 0000000000000000
rcx: fffffe0002bf1850  r8: 0000000000000000  r9: 0000000000000001
rax: fffffe0000000000 rbx: 0000000000000000 rbp: fffffe00572a33d0
r10: 0000000000000000 r11: 0000000000000033 r12: fffffe006decb980
r13: fffffe0077b7c800 r14: fffffe006decb9a4 r15: fffffe0077b7c9d0
trap number		= 12
panic: page fault
cpuid = 0
time = 1753864754
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe00572a2b90
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe00572a2cf0
vpanic() at vpanic+0x257/frame 0xfffffe00572a2eb0
panic() at panic+0xb5/frame 0xfffffe00572a2f70
trap_pfault() at trap_pfault+0xaf2/frame 0xfffffe00572a30b0
trap() at trap+0x78e/frame 0xfffffe00572a3290
calltrap() at calltrap+0x8/frame 0xfffffe00572a3290
--- trap 0xc, rip = 0xffffffff81a74900, rsp = 0xfffffe00572a3360, rbp = 0xfffffe00572a33d0 ---
in6m_disconnect_locked() at in6m_disconnect_locked+0x140/frame 0xfffffe00572a33d0
in6_leavegroup_locked() at in6_leavegroup_locked+0x1ef/frame 0xfffffe00572a3500
ip6_freemoptions() at ip6_freemoptions+0x282/frame 0xfffffe00572a3560
in_pcbfree() at in_pcbfree+0x682/frame 0xfffffe00572a35b0
sorele_locked() at sorele_locked+0x264/frame 0xfffffe00572a35f0
soclose() at soclose+0x41f/frame 0xfffffe00572a36e0
_fdrop() at _fdrop+0x5c/frame 0xfffffe00572a3710
closef() at closef+0x655/frame 0xfffffe00572a38f0
fdescfree() at fdescfree+0xa5e/frame 0xfffffe00572a3ad0
fork1() at fork1+0x833/frame 0xfffffe00572a3bf0
sys_rfork() at sys_rfork+0x1b7/frame 0xfffffe00572a3d10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe00572a3f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00572a3f30
--- syscall (198, FreeBSD ELF64, __syscall), rip = 0x3a1afa, rsp = 0x8244a3f08, rbp = 0x8244a3f80 ---
KDB: enter: panic
[ thread pid 1614 tid 101256 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25c44a7(%rip)
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe006e600000
rdx                    0x7ffff
rbx         0xffffffff827cb4e0  .str.27
rsp         0xfffffe00572a2cd0
rbp         0xfffffe00572a2cf0
rsi                    0x80001
rdi         0xffffffff81614bb9  printf+0x149
r8                           0
r9                  0xffffffff
r10                          0
r11                       0x17
r12         0xfffffe00541cc780
r13         0xfffffffffffffffe
r14         0xffffffff827cb4e0  .str.27
r15                          0
rip         0xffffffff815fe6ee  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x25c44a7(%rip)
db>