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(ffffffff825b2d80,fffffd80330cb900) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff825b2d80,fffffd80330cb900) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd80330cb900) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006a2600,800100,ffff8000006a2640,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in6_unlink_ifa(ffff8000006a2600,ffff800000a69800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000a69800,ffff800014918d10,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800014918d10,ffff800000a69800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd80363cec08,8080691a,ffff800014918d10,ffff8000ffff8a28) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff8000ffff8a28,ffff800014918e28,ffff800014918e70) at sys_ioctl+0x5b9 syscall(ffff800014918ef0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbfd30, count: -11 ddb> show registers rdi 0 rsi 0x5e08e3167953f31b rbp 0xffff800014918760 rbx 0x5e08e3167953f31b rdx 0xffff8000149186b0 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd80330cc000 r8 0x4 r9 0x5 r10 0x539d76e14a53ae5f r11 0xf021aadf1452c8fc r12 0xfffffd80330cb900 r13 0x5e08e3167953f31b r14 0xffffffff825b2d80 mbpool r15 0xfffffd803587d788 rip 0xffffffff816ea64e pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff8000149186b0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=258790 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8cb0,0xffffffff825b8d60 process=0xffff8000148a2380 user=0xffff800014913000, vmspace=0xfffffd803f012110 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *47902 258790 19331 0 7 0 syz-executor.0 19331 317954 63938 0 3 0x82 nanosleep syz-executor.0 63938 400 16341 0 3 0x82 thrsleep syz-execprog 63938 473281 16341 0 3 0x4000082 nanosleep syz-execprog 63938 262192 16341 0 3 0x4000082 thrsleep syz-execprog 63938 270564 16341 0 3 0x4000082 thrsleep syz-execprog 63938 437128 16341 0 3 0x4000082 kqread syz-execprog 63938 245052 16341 0 3 0x4000082 thrsleep syz-execprog 63938 450724 16341 0 3 0x4000082 thrsleep syz-execprog 16341 39138 33132 0 3 0x10008a pause ksh 33132 515222 82390 0 3 0x92 select sshd 35007 72839 1 0 3 0x100083 ttyin getty 82390 238464 1 0 3 0x80 select sshd 30720 404627 59164 73 3 0x100090 kqread syslogd 59164 182726 1 0 3 0x100082 netio syslogd 50308 153233 1 77 3 0x100090 poll dhclient 31479 171855 1 0 3 0x80 poll dhclient 29508 190604 0 0 2 0x14200 zerothread 96508 279903 0 0 3 0x14200 aiodoned aiodoned 94214 400349 0 0 3 0x14200 syncer update 53799 462007 0 0 3 0x14200 cleaner cleaner 91022 227139 0 0 3 0x14200 reaper reaper 39406 166986 0 0 3 0x14200 pgdaemon pagedaemon 40598 156461 0 0 3 0x14200 bored crynlk 26125 352761 0 0 3 0x14200 bored crypto 82389 376391 0 0 3 0x40014200 acpi0 acpi0 97007 387482 0 0 3 0x14200 bored softnet 98496 332278 0 0 3 0x14200 bored systqmp 42049 220635 0 0 3 0x14200 bored systq 58417 99269 0 0 3 0x40014200 bored softclock 31193 111757 0 0 3 0x40014200 idle0 93842 119885 0 0 3 0x14200 bored smr 1 433748 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 devbuf 9442 6320K 6320K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 33 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1180 74K 74K 78643K 1185 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 3 8K 12K 78643K 18 0 proc 47 38K 54K 78643K 318 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 18 79K 79K 78643K 18 0 exec 0 0K 1K 78643K 171 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 69 11K 12K 78643K 842 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 6 0 temp 27 3545K 3609K 78643K 3027 0 SYN cache 2 16K 16K 78643K 2 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 96 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 280 5 0 5 1 0 1 1 0 8 1 tcpcb 640 8 0 5 1 0 1 1 0 8 0 inpcb 280 27 0 20 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 1412 0 19 45 0 45 45 0 8 0 ffsino 240 1412 0 19 82 0 82 82 0 8 0 nchpl 144 1637 0 35 60 0 60 60 0 8 0 uvmvnodes 72 1421 0 0 26 0 26 26 0 8 0 vnodes 208 1421 0 0 75 0 75 75 0 8 0 namei 1024 3836 0 3836 1 0 1 1 0 8 1 scxspl 208 3971 0 3971 2 1 1 2 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 196 0 184 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 424 197 0 184 2 0 2 2 0 8 0 filepl 120 973 0 919 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 128 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 144 184 0 184 1 0 1 1 0 8 1 processpl 896 211 0 184 4 0 4 4 0 8 0 procpl 648 217 0 184 3 0 3 3 0 8 0 sockpl 384 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5478 0 5446 7 2 5 7 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9442 0 9366 8 3 5 6 0 8 0 mbufpl: pool(0xffffffff825b2d80:mbufpl): free list modified: page 0xfffffd80330cb000; item ordinal 1; addr 0xfffffd80330cba00 (p 0xfffffd803587d000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd80330cb000; item ordinal 1; addr 0xfffffd80330cba00 (p 0xfffffd803587d000); offset 0x0=0x0 mbufpl: pool(0xffffffff825b2d80:mbufpl): page inconsistency: page 0xfffffd80330cb000; item ordinal 2; addr 0x5e08e3167953f31b bufpl 280 5782 0 1322 319 0 319 319 0 8 0 anonpl 16 19939 0 18484 15 2 13 13 0 62 6 amapchunkpl 152 739 0 679 5 0 5 5 0 158 2 amappl16 192 126 0 97 2 0 2 2 0 8 0 amappl14 176 46 0 39 1 0 1 1 0 8 0 amappl13 168 1 0 0 1 0 1 1 0 8 0 amappl12 160 9 0 6 1 0 1 1 0 8 0 amappl11 152 45 0 34 1 0 1 1 0 8 0 amappl10 144 11 0 10 1 0 1 1 0 8 0 amappl9 136 394 0 392 1 0 1 1 0 8 0 amappl8 128 111 0 101 1 0 1 1 0 8 0 amappl7 120 28 0 26 1 0 1 1 0 8 0 amappl6 112 58 0 51 1 0 1 1 0 8 0 amappl5 104 127 0 118 1 0 1 1 0 8 0 amappl4 96 425 0 400 1 0 1 1 0 8 0 amappl3 88 121 0 111 1 0 1 1 0 8 0 amappl2 80 828 0 772 3 0 3 3 0 8 1 amappl1 72 13256 0 12865 27 10 17 20 0 8 8 amappl 80 417 0 391 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 24 197 0 184 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 197 0 184 1 0 1 1 0 8 0 vmmpekpl 168 6162 0 6148 1 0 1 1 0 8 0 vmmpepl 168 28561 0 27702 84 7 77 77 0 357 39 vmsppl 272 196 0 184 1 0 1 1 0 8 0 pdppl 4096 400 0 368 5 0 5 5 0 8 0 pvpl 32 103317 0 99553 113 0 113 113 0 265 81 pmappl 200 196 0 184 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 122 0 7 4 0 4 4 0 8 0 ddb>