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(ffffffff8257aed0,fffffd8034e59000) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff8257aed0,fffffd8034e59000) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd8034e59000) 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,ffff8000009e3800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff8000009e3800,ffff80001492a280,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001492a280,ffff8000009e3800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd80363c6908,8080691a,ffff80001492a280,ffff8000ffff8008) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff8000ffff8008,ffff80001492a398,ffff80001492a3e0) at sys_ioctl+0x5b9 syscall(ffff80001492a460) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd0a30, count: -11 ddb> show registers rdi 0 rsi 0xe45e66fe86e055e1 rbp 0xffff800014929cd0 rbx 0xe45e66fe86e055e1 rdx 0xffff800014929c20 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd8034e5a000 r8 0x4 r9 0x5 r10 0xe2ca6724bbf889bf r11 0xa8fdd60e5d727474 r12 0xfffffd8034e59000 r13 0xe45e66fe86e055e1 r14 0xffffffff8257aed0 mbpool r15 0xfffffd80355ed718 rip 0xffffffff81739b8e pool_do_put+0x12e cs 0x8 rflags 0x10212 __ALIGN_SIZE+0xf212 rsp 0xffff800014929c20 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=196991 stat=onproc flags process=0 proc=0 pri=51, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff84f8,0xffffffff82545ea8 process=0xffff8000148b30f8 user=0xffff800014925000, vmspace=0xfffffd803f012110 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *73730 196991 78623 0 7 0 syz-executor.0 78623 347932 79858 0 3 0x82 nanosleep syz-executor.0 79858 306277 67657 0 3 0x82 thrsleep syz-execprog 79858 139371 67657 0 3 0x4000082 thrsleep syz-execprog 79858 105507 67657 0 3 0x4000082 thrsleep syz-execprog 79858 351119 67657 0 3 0x4000082 thrsleep syz-execprog 79858 514065 67657 0 3 0x4000082 kqread syz-execprog 79858 325914 67657 0 3 0x4000082 thrsleep syz-execprog 79858 414959 67657 0 3 0x4000082 thrsleep syz-execprog 67657 285222 56234 0 3 0x10008a pause ksh 56234 416031 69040 0 3 0x92 select sshd 93164 300795 1 0 3 0x100083 ttyin getty 69040 466686 1 0 3 0x80 select sshd 40362 496554 10063 73 3 0x100090 kqread syslogd 10063 436336 1 0 3 0x100082 netio syslogd 50319 147426 1 77 3 0x100090 poll dhclient 86682 379681 1 0 3 0x80 poll dhclient 64148 145358 0 0 2 0x14200 zerothread 90497 41176 0 0 3 0x14200 aiodoned aiodoned 16961 480420 0 0 3 0x14200 syncer update 29038 404397 0 0 3 0x14200 cleaner cleaner 68235 481983 0 0 3 0x14200 reaper reaper 94837 7705 0 0 3 0x14200 pgdaemon pagedaemon 70221 111819 0 0 3 0x14200 bored crynlk 67674 285054 0 0 3 0x14200 bored crypto 212 372323 0 0 3 0x40014200 acpi0 acpi0 27766 405033 0 0 3 0x14200 bored softnet 49998 203586 0 0 3 0x14200 bored systqmp 33253 88006 0 0 3 0x14200 bored systq 5054 299601 0 0 3 0x40014200 bored softclock 29247 305062 0 0 3 0x40014200 idle0 67962 174841 0 0 3 0x14200 bored smr 1 134379 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 155 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 76 11K 12K 78643K 862 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 3001K 3065K 78643K 3056 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 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 2 1 1 1 0 8 1 tcpcb 544 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 256 167 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 1415 0 19 46 0 46 46 0 8 0 ffsino 240 1415 0 19 83 0 83 83 0 8 0 nchpl 144 1640 0 35 60 0 60 60 0 8 0 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3862 0 3862 2 1 1 1 0 8 1 scxspl 192 4012 0 4012 2 1 1 2 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 185 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 2 1 1 1 0 8 0 fdescpl 424 198 0 185 2 0 2 2 0 8 0 filepl 120 997 0 943 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 144 185 0 185 2 1 1 1 0 8 1 processpl 864 212 0 185 4 0 4 4 0 8 0 procpl 632 218 0 185 3 0 3 3 0 8 0 sockpl 384 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5478 0 5446 8 2 6 8 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9470 0 9394 7 2 5 5 0 8 0 mbufpl: pool(0xffffffff8257aed0:mbufpl): free list modified: page 0xfffffd8034e59000; item ordinal 1; addr 0xfffffd8034e59100 (p 0xfffffd80355ed000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd8034e59000; item ordinal 1; addr 0xfffffd8034e59100 (p 0xfffffd80355ed000); offset 0x0=0x0 mbufpl: pool(0xffffffff8257aed0:mbufpl): page inconsistency: page 0xfffffd8034e59000; item ordinal 2; addr 0xe45e66fe86e055e1 bufpl 280 5846 0 1353 321 0 321 321 0 8 0 anonpl 16 20493 0 19007 15 2 13 13 0 62 6 amapchunkpl 152 631 0 571 5 0 5 5 0 158 2 amappl16 192 77 0 51 2 0 2 2 0 8 0 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 23 0 20 2 1 1 1 0 8 0 amappl13 168 1 0 0 1 0 1 1 0 8 0 amappl12 160 11 0 8 2 1 1 1 0 8 0 amappl11 152 47 0 36 1 0 1 1 0 8 0 amappl10 144 12 0 9 2 1 1 1 0 8 0 amappl9 136 387 0 385 1 0 1 1 0 8 0 amappl8 128 84 0 75 1 0 1 1 0 8 0 amappl7 120 88 0 78 1 0 1 1 0 8 0 amappl6 112 54 0 50 1 0 1 1 0 8 0 amappl5 104 143 0 134 1 0 1 1 0 8 0 amappl4 96 427 0 403 1 0 1 1 0 8 0 amappl3 88 123 0 116 1 0 1 1 0 8 0 amappl2 80 847 0 787 4 1 3 3 0 8 1 amappl1 72 13574 0 13160 26 8 18 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 24 198 0 185 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 185 1 0 1 1 0 8 0 vmmpekpl 168 6041 0 6026 1 0 1 1 0 8 0 vmmpepl 168 29507 0 28603 88 10 78 78 0 357 38 vmsppl 272 197 0 185 1 0 1 1 0 8 0 pdppl 4096 402 0 370 5 0 5 5 0 8 0 pvpl 32 103745 0 99975 115 2 113 113 0 265 81 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 126 0 8 4 0 4 4 0 8 0 ddb>