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(ffffffff82570ea0,fffffd80352d5800) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff82570ea0,fffffd80352d5800) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd80352d5800) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff8000006a2400,800100,ffff8000006a2440,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in6_unlink_ifa(ffff8000006a2400,ffff800000a63800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000a63800,ffff800014918d40,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff800014918d40,ffff800000a63800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd80363d2a88,8080691a,ffff800014918d40,ffff8000ffff87a0) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff8000ffff87a0,ffff800014918e58,ffff800014918ea0) at sys_ioctl+0x5b9 syscall(ffff800014918f20) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0230, count: -11 ddb> show registers rdi 0 rsi 0xc19d9be9a2c1b190 rbp 0xffff800014918790 rbx 0xc19d9be9a2c1b190 rdx 0xffff8000149186e0 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd80352d6000 r8 0x4 r9 0x5 r10 0x5bc2a51e4091d3f3 r11 0x2060c0d9be914283 r12 0xfffffd80352d5800 r13 0xc19d9be9a2c1b190 r14 0xffffffff82570ea0 mbpool r15 0xfffffd80360639c8 rip 0xffffffff81a2e10e pool_do_put+0x12e cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff8000149186e0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=514499 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8a28,0xffffffff8256ed08 process=0xffff8000148a2380 user=0xffff800014913000, vmspace=0xfffffd803f011880 estcpu=18, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *32547 514499 76136 0 7 0 syz-executor.0 76136 20991 78140 0 3 0x82 nanosleep syz-executor.0 78140 61564 61633 0 3 0x82 kqread syz-execprog 78140 176964 61633 0 3 0x4000082 nanosleep syz-execprog 78140 26324 61633 0 3 0x4000082 thrsleep syz-execprog 78140 336055 61633 0 3 0x4000082 thrsleep syz-execprog 78140 343208 61633 0 3 0x4000082 thrsleep syz-execprog 78140 182754 61633 0 3 0x4000082 thrsleep syz-execprog 78140 217645 61633 0 3 0x4000082 thrsleep syz-execprog 61633 178311 65884 0 3 0x10008a pause ksh 65884 370740 26399 0 3 0x92 select sshd 92943 367155 1 0 3 0x100083 ttyin getty 26399 216544 1 0 3 0x80 select sshd 14069 395432 78625 73 3 0x100090 kqread syslogd 78625 229016 1 0 3 0x100082 netio syslogd 54252 460423 1 77 3 0x100090 poll dhclient 33466 446625 1 0 3 0x80 poll dhclient 92474 126547 0 0 2 0x14200 zerothread 25680 181657 0 0 3 0x14200 aiodoned aiodoned 13060 35443 0 0 3 0x14200 syncer update 80107 46870 0 0 3 0x14200 cleaner cleaner 83841 114664 0 0 3 0x14200 reaper reaper 88385 146882 0 0 3 0x14200 pgdaemon pagedaemon 35658 20325 0 0 3 0x14200 bored crynlk 95920 404404 0 0 3 0x14200 bored crypto 30707 42930 0 0 3 0x40014200 acpi0 acpi0 50938 381774 0 0 3 0x14200 bored softnet 92436 280760 0 0 3 0x14200 bored systqmp 20404 107539 0 0 3 0x14200 bored systq 57298 98584 0 0 3 0x40014200 bored softclock 8379 388527 0 0 3 0x40014200 idle0 65075 306158 0 0 3 0x14200 bored smr 1 252992 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 66 11K 11K 78643K 840 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 3521K 3585K 78643K 3026 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 2 1 1 1 0 8 1 tcpqe 32 24 0 24 1 1 0 1 0 8 0 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 256 167 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 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 2 1 1 1 0 8 1 scxspl 208 4150 0 4150 10 9 1 7 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 2 1 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 2 1 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 2 1 1 1 0 8 1 mcl2k 2048 5466 0 5449 9 6 3 9 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9482 0 9422 7 2 5 6 0 8 0 mbufpl: pool(0xffffffff82570ea0:mbufpl): free list modified: page 0xfffffd80352d5000; item ordinal 9; addr 0xfffffd80352d5900 (p 0xfffffd8036063000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd80352d5000; item ordinal 9; addr 0xfffffd80352d5900 (p 0xfffffd8036063000); offset 0x0=0x0 mbufpl: pool(0xffffffff82570ea0:mbufpl): page inconsistency: page 0xfffffd80352d5000; item ordinal 10; addr 0xc19d9be9a2c1b190 bufpl 256 5783 0 1322 279 0 279 279 0 8 0 anonpl 16 20153 0 18702 15 2 13 13 0 62 7 amapchunkpl 152 671 0 611 5 0 5 5 0 158 2 amappl16 192 126 0 97 2 0 2 2 0 8 0 amappl15 184 8 0 6 1 0 1 1 0 8 0 amappl14 176 47 0 41 1 0 1 1 0 8 0 amappl12 160 13 0 10 2 1 1 1 0 8 0 amappl11 152 46 0 35 1 0 1 1 0 8 0 amappl10 144 9 0 8 2 1 1 1 0 8 0 amappl9 136 396 0 394 1 0 1 1 0 8 0 amappl8 128 113 0 104 1 0 1 1 0 8 0 amappl7 120 32 0 28 1 0 1 1 0 8 0 amappl6 112 57 0 50 1 0 1 1 0 8 0 amappl5 104 127 0 116 1 0 1 1 0 8 0 amappl4 96 422 0 399 1 0 1 1 0 8 0 amappl3 88 116 0 111 1 0 1 1 0 8 0 amappl2 80 836 0 780 4 1 3 3 0 8 1 amappl1 72 13278 0 12890 27 10 17 20 0 8 8 amappl 80 418 0 392 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 6154 0 6140 1 0 1 1 0 8 0 vmmpepl 168 28620 0 27765 95 19 76 76 0 357 38 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 103464 0 99705 119 6 113 113 0 265 82 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 112 404 0 12 12 0 12 12 0 8 0