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(ffffffff8256cf88,fffffd803d4d2100) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff8256cf88,fffffd803d4d2100) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd803d4d2100) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006a2b00,800100,ffff8000006a2b40,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in6_unlink_ifa(ffff8000006a2b00,ffff800000a65800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000a65800,ffff800014917f00,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800014917f00,ffff800000a65800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd80363e3a88,8080691a,ffff800014917f00,ffff8000ffff8770) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff8000ffff8770,ffff800014918018,ffff800014918060) at sys_ioctl+0x5b9 syscall(ffff8000149180e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0c60, count: -11 ddb> show registers rdi 0 rsi 0x19bd6dfecabc5ded rbp 0xffff800014917950 rbx 0x19bd6dfecabc5ded rdx 0xffff8000149178a0 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd803d4d3000 r8 0x4 r9 0x5 r10 0x9ec3ffccda7f3fc4 r11 0xa3191f11adf45f10 r12 0xfffffd803d4d2100 r13 0x19bd6dfecabc5ded r14 0xffffffff8256cf88 mbpool r15 0xfffffd80314a0550 rip 0xffffffff813700de pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff8000149178a0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=399715 stat=onproc flags process=0 proc=0 pri=53, usrpri=53, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff82595278 process=0xffff8000148a30f8 user=0xffff800014913000, vmspace=0xfffffd803f012330 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *55122 399715 79052 0 7 0 syz-executor.0 79052 381154 36774 0 3 0x82 nanosleep syz-executor.0 36774 35560 43302 0 3 0x82 thrsleep syz-execprog 36774 486230 43302 0 3 0x4000082 nanosleep syz-execprog 36774 174858 43302 0 3 0x4000082 thrsleep syz-execprog 36774 130177 43302 0 3 0x4000082 thrsleep syz-execprog 36774 5868 43302 0 3 0x4000082 kqread syz-execprog 36774 215422 43302 0 3 0x4000082 thrsleep syz-execprog 36774 37338 43302 0 3 0x4000082 thrsleep syz-execprog 43302 382486 25733 0 3 0x10008a pause ksh 25733 305715 43082 0 3 0x92 select sshd 89385 356144 1 0 3 0x100083 ttyin getty 43082 179635 1 0 3 0x80 select sshd 42292 242147 21493 73 3 0x100090 kqread syslogd 21493 84877 1 0 3 0x100082 netio syslogd 44544 16440 1 77 3 0x100090 poll dhclient 93034 256071 1 0 3 0x80 poll dhclient 25334 252326 0 0 2 0x14200 zerothread 46070 75817 0 0 3 0x14200 aiodoned aiodoned 29844 242213 0 0 3 0x14200 syncer update 37674 81093 0 0 3 0x14200 cleaner cleaner 53377 433866 0 0 3 0x14200 reaper reaper 48640 315119 0 0 3 0x14200 pgdaemon pagedaemon 18359 66102 0 0 3 0x14200 bored crynlk 57535 256181 0 0 3 0x14200 bored crypto 98088 185239 0 0 3 0x40014200 acpi0 acpi0 58983 361963 0 0 3 0x14200 bored softnet 49151 392338 0 0 3 0x14200 bored systqmp 14896 148039 0 0 3 0x14200 bored systq 69090 304919 0 0 3 0x40014200 bored softclock 27747 382223 0 0 3 0x40014200 idle0 85246 369869 0 0 3 0x14200 bored smr 1 136463 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 256 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 241 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 11K 78643K 1062 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 3471 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 280 250 0 243 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 256 168 0 0 11 0 11 11 0 8 0 art_table 32 169 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 1635 0 242 45 0 45 45 0 8 0 ffsino 240 1635 0 242 82 0 82 82 0 8 0 nchpl 144 2097 0 497 60 0 60 60 0 8 0 uvmvnodes 72 1644 0 0 30 0 30 30 0 8 0 vnodes 208 1644 0 0 87 0 87 87 0 8 0 namei 1024 4728 0 4728 1 0 1 1 0 8 1 scxspl 192 5335 0 5335 2 1 1 2 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 419 0 407 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 424 420 0 407 2 0 2 2 0 8 0 filepl 120 1419 0 1365 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 144 407 0 407 1 0 1 1 0 8 1 processpl 864 434 0 407 4 0 4 4 0 8 0 procpl 632 440 0 407 3 0 3 3 0 8 0 sockpl 384 294 0 277 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 1 0 1 0 8 0 mcl2k 2048 5478 0 5444 8 3 5 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9693 0 9607 8 2 6 6 0 8 0 mbufpl: pool(0xffffffff8256cf88:mbufpl): free list modified: page 0xfffffd803d4d2000; item ordinal 1; addr 0xfffffd803d4d2200 (p 0xfffffd80314a0000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd803d4d2000; item ordinal 1; addr 0xfffffd803d4d2200 (p 0xfffffd80314a0000); offset 0x0=0x0 mbufpl: pool(0xffffffff8256cf88:mbufpl): page inconsistency: page 0xfffffd803d4d2000; item ordinal 2; addr 0x19bd6dfecabc5ded bufpl 256 6008 0 1545 280 0 280 280 0 8 0 anonpl 16 26484 0 24323 15 2 13 13 0 62 3 amapchunkpl 152 966 0 906 5 0 5 5 0 158 2 amappl16 192 1071 0 988 5 0 5 5 0 8 0 amappl14 176 50 0 43 1 0 1 1 0 8 0 amappl12 160 5 0 4 1 0 1 1 0 8 0 amappl11 152 281 0 267 1 0 1 1 0 8 0 amappl10 144 17 0 14 1 0 1 1 0 8 0 amappl9 136 394 0 391 1 0 1 1 0 8 0 amappl8 128 113 0 102 1 0 1 1 0 8 0 amappl7 120 27 0 25 1 0 1 1 0 8 0 amappl6 112 281 0 274 1 0 1 1 0 8 0 amappl5 104 138 0 129 1 0 1 1 0 8 0 amappl4 96 648 0 621 1 0 1 1 0 8 0 amappl3 88 118 0 111 1 0 1 1 0 8 0 amappl2 80 1254 0 1198 3 0 3 3 0 8 1 amappl1 72 15008 0 14618 27 10 17 20 0 8 8 amappl 80 641 0 615 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 24 420 0 407 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 420 0 407 1 0 1 1 0 8 0 vmmpekpl 168 6597 0 6582 1 0 1 1 0 8 0 vmmpepl 168 37979 0 37055 85 8 77 77 0 357 36 vmsppl 272 419 0 407 1 0 1 1 0 8 0 pdppl 4096 846 0 814 5 0 5 5 0 8 0 pvpl 32 127280 0 122661 113 0 113 113 0 265 75 pmappl 200 419 0 407 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 404 0 8 12 0 12 12 0 8 0 ddb>