login: kernel: protection 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 the kernel did not panic ddb> trace pool_do_put(ffffffff825b5230,fffffd803537ae00) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff825b5230,fffffd803537ae00) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd803537ae00) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006a2500,800100,ffff8000006a2540,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in6_unlink_ifa(ffff8000006a2500,ffff800000a65800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000a65800,ffff800014918be0,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800014918be0,ffff800000a65800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd80363d5c08,8080691a,ffff800014918be0,ffff8000ffff8280) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff8000ffff8280,ffff800014918cf8,ffff800014918d40) at sys_ioctl+0x5b9 syscall(ffff800014918dc0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe2470, count: -11 ddb> show registers rdi 0 rsi 0x77d0e3cb071458ab rbp 0xffff800014918630 rbx 0x77d0e3cb071458ab rdx 0xffff800014918580 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd803537b000 r8 0x4 r9 0 r10 0xe1def2d47508e57c r11 0xd1bb1339be56c867 r12 0xfffffd803537ae00 r13 0x77d0e3cb071458ab r14 0xffffffff825b5230 mbpool r15 0xfffffd80313d5400 rip 0xffffffff81d7d3ce pool_do_put+0x12e cs 0x8 rflags 0x10296 __ALIGN_SIZE+0xf296 rsp 0xffff800014918580 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=184685 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff825af5d0 process=0xffff8000148a2378 user=0xffff800014913000, vmspace=0xfffffd803f012bb0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *99044 184685 85221 0 7 0 syz-executor.0 85221 32344 42024 0 3 0x82 nanosleep syz-executor.0 42024 409706 63311 0 3 0x82 thrsleep syz-execprog 42024 107220 63311 0 3 0x4000082 nanosleep syz-execprog 42024 115949 63311 0 3 0x4000082 thrsleep syz-execprog 42024 234066 63311 0 3 0x4000082 thrsleep syz-execprog 42024 393691 63311 0 3 0x4000082 thrsleep syz-execprog 42024 182423 63311 0 3 0x4000082 kqread syz-execprog 42024 337898 63311 0 3 0x4000082 thrsleep syz-execprog 63311 112191 78849 0 3 0x10008a pause ksh 78849 197224 43163 0 3 0x92 select sshd 49804 444822 1 0 3 0x100083 ttyin getty 43163 295031 1 0 3 0x80 select sshd 16969 395489 48759 73 3 0x100090 kqread syslogd 48759 375597 1 0 3 0x100082 netio syslogd 58999 40621 1 77 3 0x100090 poll dhclient 95982 374468 1 0 3 0x80 poll dhclient 90491 64610 0 0 2 0x14200 zerothread 28383 435555 0 0 3 0x14200 aiodoned aiodoned 12230 332400 0 0 3 0x14200 syncer update 429 139629 0 0 3 0x14200 cleaner cleaner 87202 207500 0 0 3 0x14200 reaper reaper 28228 475343 0 0 3 0x14200 pgdaemon pagedaemon 95121 404159 0 0 3 0x14200 bored crynlk 93342 384781 0 0 3 0x14200 bored crypto 49507 294777 0 0 3 0x40014200 acpi0 acpi0 72550 260376 0 0 3 0x14200 bored softnet 82497 126377 0 0 3 0x14200 bored systqmp 214 85649 0 0 3 0x14200 bored systq 4929 402035 0 0 3 0x40014200 bored softclock 7747 81566 0 0 3 0x40014200 idle0 27498 325701 0 0 3 0x14200 bored smr 1 266839 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9442 6320K 6320K 78643K 10539 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 83 2K 2K 78643K 153 0 0 ifaddr 33 9K 9K 78643K 166 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1180 74K 74K 78643K 1185 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1794 195K 288K 78643K 12646 0 0 file desc 3 8K 12K 78643K 151 0 0 proc 47 38K 54K 78643K 318 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 22 1K 1K 78643K 22 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 171 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 67 11K 12K 78643K 975 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 4 0K 0K 78643K 6 0 0 temp 27 3521K 3585K 78643K 3293 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 1 0 1 0 8 0 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 160 0 153 1 0 1 1 0 8 0 nd6 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1545 0 152 45 0 45 45 0 8 0 ffsino 240 1545 0 152 82 0 82 82 0 8 0 nchpl 144 1903 0 302 60 0 60 60 0 8 0 uvmvnodes 72 1554 0 0 29 0 29 29 0 8 0 vnodes 208 1554 0 0 82 0 82 82 0 8 0 namei 1024 4368 0 4368 1 0 1 1 0 8 1 scxspl 192 4756 0 4756 2 1 1 2 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 329 0 317 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 128 134 0 121 1 0 1 1 0 8 0 fdescpl 424 330 0 317 2 0 2 2 0 8 0 filepl 120 1239 0 1185 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 317 0 317 1 0 1 1 0 8 1 processpl 864 344 0 317 4 0 4 4 0 8 0 procpl 632 350 0 317 3 0 3 3 0 8 0 sockpl 384 204 0 187 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5471 0 5443 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9612 0 9532 7 1 6 6 0 8 0 mbufpl: pool(0xffffffff825b5230:mbufpl): free list modified: page 0xfffffd803537a000; item ordinal 14; addr 0xfffffd803537af00 (p 0xfffffd80313d5000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd803537a000; item ordinal 14; addr 0xfffffd803537af00 (p 0xfffffd80313d5000); offset 0x0=0x0 mbufpl: pool(0xffffffff825b5230:mbufpl): page inconsistency: page 0xfffffd803537a000; item ordinal 15; addr 0x77d0e3cb071458ab bufpl 256 5916 0 1456 279 0 279 279 0 8 0 anonpl 16 23818 0 21805 15 2 13 13 0 62 4 amapchunkpl 152 861 0 801 5 0 5 5 0 158 2 amappl16 192 698 0 632 4 0 4 4 0 8 0 amappl14 176 180 0 172 1 0 1 1 0 8 0 amappl12 160 8 0 5 1 0 1 1 0 8 0 amappl11 152 45 0 34 1 0 1 1 0 8 0 amappl10 144 8 0 8 1 0 1 1 0 8 1 amappl9 136 394 0 392 1 0 1 1 0 8 0 amappl8 128 118 0 107 1 0 1 1 0 8 0 amappl7 120 29 0 27 1 0 1 1 0 8 0 amappl6 112 56 0 48 1 0 1 1 0 8 0 amappl5 104 132 0 122 1 0 1 1 0 8 0 amappl4 96 556 0 531 1 0 1 1 0 8 0 amappl3 88 250 0 243 1 0 1 1 0 8 0 amappl2 80 1101 0 1044 4 1 3 3 0 8 1 amappl1 72 14426 0 14031 27 10 17 20 0 8 8 amappl 80 551 0 525 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 330 0 317 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 330 0 317 1 0 1 1 0 8 0 vmmpekpl 168 6412 0 6397 1 0 1 1 0 8 0 vmmpepl 168 34579 0 33665 88 11 77 77 0 357 37 vmsppl 272 329 0 317 1 0 1 1 0 8 0 pdppl 4096 666 0 634 5 0 5 5 0 8 0 pvpl 32 117573 0 113244 113 0 113 113 0 265 78 pmappl 200 329 0 317 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 400 0 5 12 0 12 12 0 8 0 ddb>