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(ffffffff82808ac8,fffffd805c029300) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82808ac8,fffffd805c029300) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c029300) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5500,800100,ffff8000006b5540,0) at rt_ifa_del+0x402 sys/net/route.c:1197 in6_unlink_ifa(ffff8000006b5500,ffff800000ac3800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac3800,ffff80001d777a60,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d777a60,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da65c88,8080691a,ffff80001d777a60,ffff80001d6a9ea8) at ifioctl+0xe60 sys/net/if.c:2282 sys_ioctl(ffff80001d6a9ea8,ffff80001d777b78,ffff80001d777bc0) at sys_ioctl+0x4a1 syscall(ffff80001d777c40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff38d0, count: -11 ddb> show registers rdi 0 rsi 0xde8e4f824548a8fa rbp 0xffff80001d7774b0 rbx 0xde8e4f824548a8fa rdx 0xffff80001d777400 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0x5 r10 0x3d9238d10c2ce5ad r11 0x89e504afe9b87ad8 r12 0xfffffd805c029300 r13 0xde8e4f824548a8fa r14 0xffffffff82808ac8 mbpool r15 0xfffffd805e10cee8 rip 0xffffffff81210bce pool_do_put+0x12e cs 0x8 rflags 0x10216 __ALIGN_SIZE+0xf216 rsp 0xffff80001d777400 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=411805 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a9008,0xffffffff827e55d8 process=0xffff80001d6c5970 user=0xffff80001d772000, vmspace=0xfffffd806bc09110 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND * 7890 411805 29993 0 7 0 syz-executor.0 29993 518171 55446 0 3 0x82 nanosleep syz-executor.0 55446 495747 63373 0 3 0x82 thrsleep syz-execprog 55446 486332 63373 0 3 0x4000082 nanosleep syz-execprog 55446 154892 63373 0 3 0x4000082 thrsleep syz-execprog 55446 517322 63373 0 3 0x4000082 thrsleep syz-execprog 55446 428672 63373 0 3 0x4000082 kqread syz-execprog 55446 289764 63373 0 3 0x4000082 thrsleep syz-execprog 55446 349825 63373 0 3 0x4000082 thrsleep syz-execprog 63373 147100 70846 0 3 0x10008a pause ksh 70846 64162 24582 0 3 0x92 select sshd 19259 396417 1 0 3 0x100083 ttyin getty 24582 396181 1 0 3 0x80 select sshd 13885 457828 20529 73 3 0x100090 kqread syslogd 20529 69905 1 0 3 0x100082 netio syslogd 31909 248576 1 77 3 0x100090 poll dhclient 1380 269594 1 0 3 0x80 poll dhclient 92837 124531 0 0 3 0x14200 bored smr 89877 267993 0 0 2 0x14200 zerothread 74253 378574 0 0 3 0x14200 aiodoned aiodoned 6343 506058 0 0 3 0x14200 syncer update 37268 180744 0 0 3 0x14200 cleaner cleaner 69671 362449 0 0 3 0x14200 reaper reaper 70229 142287 0 0 3 0x14200 pgdaemon pagedaemon 86029 82293 0 0 3 0x14200 bored crynlk 46621 42082 0 0 3 0x14200 bored crypto 44613 166170 0 0 3 0x40014200 acpi0 acpi0 36021 144590 0 0 3 0x14200 bored softnet 63034 436305 0 0 3 0x14200 bored systqmp 79693 326524 0 0 3 0x14200 bored systq 27180 102054 0 0 3 0x40014200 bored softclock 67898 274990 0 0 3 0x40014200 idle0 1 138078 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 9444 6321K 6321K 78643K 10543 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 33 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1182 74K 74K 78643K 1187 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 1809 195K 288K 78643K 12938 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 19 95K 95K 78643K 19 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 835 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 6 0 temp 23 3845K 3909K 78643K 1623 0 kqueue 3 4K 4K 78643K 3 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 296 27 0 20 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 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 dino2pl 256 1415 0 21 88 0 88 88 0 8 0 ffsino 240 1415 0 21 82 0 82 82 0 8 0 nchpl 144 1634 0 36 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 3939 0 3939 2 1 1 1 0 8 1 scxspl 192 4419 0 4419 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 212 0 185 4 0 4 4 0 8 0 knotepl 112 47 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipepl 272 70 0 63 2 1 1 1 0 8 0 fdescpl 432 198 0 185 2 0 2 2 0 8 0 filepl 120 979 0 925 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 57 0 50 1 0 1 1 0 8 0 zombiepl 144 185 0 185 2 1 1 1 0 8 1 processpl 928 212 0 185 4 0 4 4 0 8 0 procpl 624 218 0 185 3 0 3 3 0 8 0 sockpl 400 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5543 0 5515 6 2 4 6 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9601 0 9526 7 2 5 5 0 8 0 mbufpl: pool(0xffffffff82808ac8:mbufpl): free list modified: page 0xfffffd805c029000; item ordinal 1; addr 0xfffffd805c029400 (p 0xfffffd805e10c000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd805c029000; item ordinal 1; addr 0xfffffd805c029400 (p 0xfffffd805e10c000); offset 0x0=0x0 mbufpl: pool(0xffffffff82808ac8:mbufpl): page inconsistency: page 0xfffffd805c029000; item ordinal 2; addr 0xde8e4f824548a8fa bufpl 280 2961 0 125 203 0 203 203 0 8 0 anonpl 16 20326 0 18815 14 2 12 12 0 107 4 amapchunkpl 152 770 0 709 4 0 4 4 0 158 1 amappl16 192 121 0 88 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 25 0 22 1 0 1 1 0 8 0 amappl13 168 21 0 19 2 1 1 1 0 8 0 amappl12 160 6 0 4 2 1 1 1 0 8 0 amappl11 152 44 0 35 1 0 1 1 0 8 0 amappl10 144 10 0 7 1 0 1 1 0 8 0 amappl9 136 224 0 222 1 0 1 1 0 8 0 amappl8 128 232 0 225 1 0 1 1 0 8 0 amappl7 120 110 0 97 1 0 1 1 0 8 0 amappl6 112 22 0 20 2 1 1 1 0 8 0 amappl5 104 133 0 123 1 0 1 1 0 8 0 amappl4 96 431 0 403 1 0 1 1 0 8 0 amappl3 88 107 0 101 1 0 1 1 0 8 0 amappl2 80 809 0 751 3 1 2 2 0 8 0 amappl1 72 13477 0 13081 24 7 17 17 0 8 8 amappl 80 419 0 393 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 2 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 6065 0 6044 2 0 2 2 0 8 0 vmmpepl 168 29408 0 28531 81 12 69 69 0 357 29 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 104606 0 100815 104 2 102 102 0 265 70 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 216 0 9 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff82808ac8,fffffd805c029300) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82808ac8,fffffd805c029300) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c029300) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5500,800100,ffff8000006b5540,0) at rt_ifa_del+0x402 sys/net/route.c:1197 in6_unlink_ifa(ffff8000006b5500,ffff800000ac3800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac3800,ffff80001d777a60,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d777a60,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da65c88,8080691a,ffff80001d777a60,ffff80001d6a9ea8) at ifioctl+0xe60 sys/net/if.c:2282 sys_ioctl(ffff80001d6a9ea8,ffff80001d777b78,ffff80001d777bc0) at sys_ioctl+0x4a1 syscall(ffff80001d777c40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff38d0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82808ac8,fffffd805c029300) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82808ac8,fffffd805c029300) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c029300) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5500,800100,ffff8000006b5540,0) at rt_ifa_del+0x402 sys/net/route.c:1197 in6_unlink_ifa(ffff8000006b5500,ffff800000ac3800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac3800,ffff80001d777a60,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d777a60,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da65c88,8080691a,ffff80001d777a60,ffff80001d6a9ea8) at ifioctl+0xe60 sys/net/if.c:2282 sys_ioctl(ffff80001d6a9ea8,ffff80001d777b78,ffff80001d777bc0) at sys_ioctl+0x4a1 syscall(ffff80001d777c40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff38d0, count: -11 ddb>