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(ffffffff82854488,fffffd805c18a700) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82854488,fffffd805c18a700) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c18a700) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5300,800100,ffff8000006b5340,0) at rt_ifa_del+0x402 sys/net/route.c:1199 in6_unlink_ifa(ffff8000006b5300,ffff800000ac5800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac5800,ffff80001d77fb00,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d77fb00,ffff800000ac5800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da6a4b8,8080691a,ffff80001d77fb00,ffff80001d6a94e8) at ifioctl+0xe60 sys/net/if.c:2181 sys_ioctl(ffff80001d6a94e8,ffff80001d77fc18,ffff80001d77fc60) at sys_ioctl+0x4a1 syscall(ffff80001d77fce0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc56b0, count: -11 ddb> show registers rdi 0 rsi 0xe0d8a94de2e6451 rbp 0xffff80001d77f550 rbx 0xe0d8a94de2e6451 rdx 0xffff80001d77f4a0 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0xffffffff81f38a26 rtrequest+0x146 r10 0x38be970b993155fa r11 0xb0cfba970ce59aa8 r12 0xfffffd805c18a700 r13 0xe0d8a94de2e6451 r14 0xffffffff82854488 mbpool r15 0xfffffd8069d92f08 rip 0xffffffff823ae3be pool_do_put+0x12e cs 0x8 rflags 0x10296 __ALIGN_SIZE+0xf296 rsp 0xffff80001d77f4a0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=273238 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a9278,0xffffffff82865068 process=0xffff80001d6c55d0 user=0xffff80001d77a000, vmspace=0xfffffd806bc0a110 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *44680 273238 68188 0 7 0 syz-executor.0 68188 484398 57287 0 3 0x82 nanosleep syz-executor.0 57287 291678 3938 0 3 0x82 thrsleep syz-execprog 57287 428611 3938 0 3 0x4000082 nanosleep syz-execprog 57287 119306 3938 0 3 0x4000082 thrsleep syz-execprog 57287 390986 3938 0 3 0x4000082 kqread syz-execprog 57287 438145 3938 0 3 0x4000082 thrsleep syz-execprog 57287 76063 3938 0 3 0x4000082 thrsleep syz-execprog 57287 30409 3938 0 3 0x4000082 thrsleep syz-execprog 3938 490339 67593 0 3 0x10008a pause ksh 67593 390956 79755 0 3 0x92 select sshd 49099 123933 1 0 3 0x100083 ttyin getty 79755 415071 1 0 3 0x80 select sshd 76001 46801 25809 73 3 0x100090 kqread syslogd 25809 244086 1 0 3 0x100082 netio syslogd 3483 369520 1 77 3 0x100090 poll dhclient 87363 202674 1 0 3 0x80 poll dhclient 20966 469326 0 0 3 0x14200 bored smr 51217 445454 0 0 2 0x14200 zerothread 83393 128988 0 0 3 0x14200 aiodoned aiodoned 33881 365717 0 0 3 0x14200 syncer update 42589 479325 0 0 3 0x14200 cleaner cleaner 89098 112130 0 0 3 0x14200 reaper reaper 3588 458761 0 0 3 0x14200 pgdaemon pagedaemon 12821 286236 0 0 3 0x14200 bored crynlk 6284 479990 0 0 3 0x14200 bored crypto 12210 224263 0 0 3 0x40014200 acpi0 acpi0 13089 96263 0 0 3 0x14200 bored softnet 30820 290812 0 0 3 0x14200 bored systqmp 36392 457861 0 0 3 0x14200 bored systq 72158 322728 0 0 3 0x40014200 bored softclock 28942 232890 0 0 3 0x40014200 idle0 1 90850 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 9441 6320K 6320K 78643K 10540 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 75 11K 12K 78643K 846 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 1624 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 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 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 1413 0 21 87 0 87 87 0 8 0 ffsino 240 1413 0 21 82 0 82 82 0 8 0 nchpl 144 1631 0 36 60 0 60 60 0 8 0 uvmvnodes 72 1422 0 0 26 0 26 26 0 8 0 vnodes 208 1422 0 0 75 0 75 75 0 8 0 namei 1024 3937 0 3937 2 1 1 1 0 8 1 scxspl 192 4162 0 4162 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 48 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipepl 272 71 0 63 2 1 1 1 0 8 0 fdescpl 432 198 0 185 2 0 2 2 0 8 0 filepl 120 979 0 923 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 4935 0 4907 6 2 4 6 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 8696 0 8627 5 0 5 5 0 8 0 mbufpl: pool(0xffffffff82854488:mbufpl): free list modified: page 0xfffffd805c18a000; item ordinal 7; addr 0xfffffd805c18a800 (p 0xfffffd8069d92000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd805c18a000; item ordinal 7; addr 0xfffffd805c18a800 (p 0xfffffd8069d92000); offset 0x0=0x0 mbufpl: pool(0xffffffff82854488:mbufpl): page inconsistency: page 0xfffffd805c18a000; item ordinal 8; addr 0xe0d8a94de2e6451 bufpl 280 2900 0 117 199 0 199 199 0 8 0 anonpl 16 20233 0 18675 14 2 12 12 0 107 4 amapchunkpl 152 623 0 558 4 0 4 4 0 158 1 amappl16 192 128 0 96 2 0 2 2 0 8 0 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 3 0 1 1 0 1 1 0 8 0 amappl13 168 20 0 18 2 1 1 1 0 8 0 amappl12 160 27 0 22 1 0 1 1 0 8 0 amappl11 152 41 0 32 1 0 1 1 0 8 0 amappl10 144 8 0 6 1 0 1 1 0 8 0 amappl9 136 179 0 177 1 0 1 1 0 8 0 amappl8 128 248 0 232 1 0 1 1 0 8 0 amappl7 120 97 0 88 1 0 1 1 0 8 0 amappl6 112 31 0 26 1 0 1 1 0 8 0 amappl5 104 165 0 156 1 0 1 1 0 8 0 amappl4 96 427 0 403 1 0 1 1 0 8 0 amappl3 88 130 0 119 1 0 1 1 0 8 0 amappl2 80 808 0 751 3 1 2 2 0 8 0 amappl1 72 13597 0 13204 24 7 17 17 0 8 8 amappl 80 421 0 394 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 6073 0 6052 2 0 2 2 0 8 1 vmmpepl 168 29170 0 28282 81 12 69 69 0 357 30 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 104501 0 100707 104 3 101 101 0 265 69 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 112 214 0 7 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff82854488,fffffd805c18a700) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82854488,fffffd805c18a700) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c18a700) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5300,800100,ffff8000006b5340,0) at rt_ifa_del+0x402 sys/net/route.c:1199 in6_unlink_ifa(ffff8000006b5300,ffff800000ac5800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac5800,ffff80001d77fb00,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d77fb00,ffff800000ac5800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da6a4b8,8080691a,ffff80001d77fb00,ffff80001d6a94e8) at ifioctl+0xe60 sys/net/if.c:2181 sys_ioctl(ffff80001d6a94e8,ffff80001d77fc18,ffff80001d77fc60) at sys_ioctl+0x4a1 syscall(ffff80001d77fce0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc56b0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82854488,fffffd805c18a700) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82854488,fffffd805c18a700) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805c18a700) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006b5300,800100,ffff8000006b5340,0) at rt_ifa_del+0x402 sys/net/route.c:1199 in6_unlink_ifa(ffff8000006b5300,ffff800000ac5800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000ac5800,ffff80001d77fb00,0) at in6_update_ifa+0x13e7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d77fb00,ffff800000ac5800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805da6a4b8,8080691a,ffff80001d77fb00,ffff80001d6a94e8) at ifioctl+0xe60 sys/net/if.c:2181 sys_ioctl(ffff80001d6a94e8,ffff80001d77fc18,ffff80001d77fc60) at sys_ioctl+0x4a1 syscall(ffff80001d77fce0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc56b0, count: -11 ddb>