login: uvm_fault(0xffffffff82514e80, 0xfffffd0669307e27, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at pool_do_put+0x12e: movq 0x8(%rbx),%rbx
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel page fault
uvm_fault(0xffffffff82514e80, 0xfffffd0669307e27, 0, 1) -> e
pool_do_put(ffffffff82574cc8,fffffd803b67de00) at pool_do_put+0x12e sys/kern/subr_pool.c:844
end trace frame: 0xffff80001491a500, count: 0
ddb> trace
pool_do_put(ffffffff82574cc8,fffffd803b67de00) at pool_do_put+0x12e sys/kern/subr_pool.c:844
pool_put(ffffffff82574cc8,fffffd803b67de00) at pool_put+0x4b sys/kern/subr_pool.c:802
m_free(fffffd803b67de00) at m_free+0x119 sys/kern/uipc_mbuf.c:459
rt_ifa_del(ffff8000006a2200,800100,ffff8000006a2240,0) at rt_ifa_del+0x436 sys/net/route.c:1201
in6_unlink_ifa(ffff8000006a2200,ffff800000a69800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943
in6_update_ifa(ffff800000a69800,ffff80001491aa60,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875
in6_ioctl_change_ifaddr(8080691a,ffff80001491aa60,ffff800000a69800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352
ifioctl(fffffd80363d3c08,8080691a,ffff80001491aa60,ffff8000ffff8008) at ifioctl+0xe60 sys/net/if.c:2291
sys_ioctl(ffff8000ffff8008,ffff80001491ab78,ffff80001491abc0) at sys_ioctl+0x5b9
syscall(ffff80001491ac40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd2b90, count: -11
ddb> show registers
rdi 0
rsi 0xfffffd0669307e1f
rbp 0xffff80001491a4b0
rbx 0xfffffd0669307e1f
rdx 0xffff80001491a400
rcx 0x1000 __ALIGN_SIZE
rax 0xfffffd803b67e000
r8 0x4
r9 0x5
r10 0x40ce14e41ce4caca
r11 0xb7a272a0f4d47fea
r12 0xfffffd803b67de00
r13 0x5de4610669307e1f
r14 0xffffffff82574cc8 mbpool
r15 0xfffffd803a217da8
rip 0xffffffff81a74b7e pool_do_put+0x12e
cs 0x8
rflags 0x10216 __ALIGN_SIZE+0xf216
rsp 0xffff80001491a400
ss 0x10
pool_do_put+0x12e: movq 0x8(%rbx),%rbx
ddb> show proc
PROC (syz-executor.0) pid=487139 stat=onproc
flags process=0 proc=0
pri=62, usrpri=62, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff8290,0xffffffff82573ce8
process=0xffff8000148a2e00 user=0xffff800014915000, vmspace=0xfffffd803f012770
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*38843 487139 71642 0 7 0 syz-executor.0
71642 255844 53655 0 3 0x82 nanosleep syz-executor.0
53655 349335 36912 0 3 0x82 thrsleep syz-execprog
53655 146537 36912 0 3 0x4000082 nanosleep syz-execprog
53655 285669 36912 0 3 0x4000082 thrsleep syz-execprog
53655 167571 36912 0 3 0x4000082 thrsleep syz-execprog
53655 402158 36912 0 3 0x4000082 thrsleep syz-execprog
53655 472319 36912 0 3 0x4000082 kqread syz-execprog
53655 349798 36912 0 3 0x4000082 thrsleep syz-execprog
36912 461979 53403 0 3 0x10008a pause ksh
53403 15328 52684 0 3 0x92 select sshd
15142 75772 1 0 3 0x100083 ttyin getty
52684 301578 1 0 3 0x80 select sshd
77561 215108 33308 73 3 0x100090 kqread syslogd
33308 401710 1 0 3 0x100082 netio syslogd
19399 146171 1 77 3 0x100090 poll dhclient
29303 348821 1 0 3 0x80 poll dhclient
95465 42782 0 0 2 0x14200 zerothread
74267 458989 0 0 3 0x14200 aiodoned aiodoned
27023 132105 0 0 3 0x14200 syncer update
79763 255217 0 0 3 0x14200 cleaner cleaner
602 330221 0 0 3 0x14200 reaper reaper
78788 385158 0 0 3 0x14200 pgdaemon pagedaemon
71799 224191 0 0 3 0x14200 bored crynlk
57495 462913 0 0 3 0x14200 bored crypto
95923 410596 0 0 3 0x40014200 acpi0 acpi0
16442 240267 0 0 3 0x14200 bored softnet
31853 242423 0 0 3 0x14200 bored systqmp
55155 356204 0 0 3 0x14200 bored systq
16471 500165 0 0 3 0x40014200 bored softclock
87331 212285 0 0 3 0x40014200 idle0
88307 496655 0 0 3 0x14200 bored smr
1 57989 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb>