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>