uvm_fault(0xffffffff824f0e38, 0xffffad566c1d49ca, 0, 1) -> e kernel: page 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 kernel page fault uvm_fault(0xffffffff824f0e38, 0xffffad566c1d49ca, 0, 1) -> e pool_do_put(ffffffff825577b0,fffffd80551e3e00) at pool_do_put+0x12e sys/kern/subr_pool.c:844 end trace frame: 0xffff80001e4446d0, count: 0 ddb> trace pool_do_put(ffffffff825577b0,fffffd80551e3e00) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff825577b0,fffffd80551e3e00) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd80551e3e00) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff800000a28e00,800100,ffff800000a28e40,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in6_unlink_ifa(ffff800000a28e00,ffff8000009f0800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff8000009f0800,ffff80001e444c30,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001e444c30,ffff8000009f0800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd8067f61a90,8080691a,ffff80001e444c30,ffff80001e44d160) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff80001e44d160,ffff80001e444d48,ffff80001e444d90) at sys_ioctl+0x5b9 syscall(ffff80001e444e10) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8b55753d8d0, count: -11 ddb> show registers rdi 0xffffffff816f6fb5 pool_do_put+0x125 rsi 0x174 rbp 0xffff80001e444680 rbx 0xffffad566c1d49c2 rdx 0x175 rcx 0xffff80001d439000 rax 0xffff80001d439000 r8 0x4 r9 0x5 r10 0x86f0c3882b7a857f r11 0xc938145c3a8aaa15 r12 0xfffffd80551e3e00 r13 0xd953ad566c1d49c2 r14 0xffffffff825577b0 mbpool r15 0xfffffd80551e4e20 rip 0xffffffff816f6fbe pool_do_put+0x12e cs 0x8 rflags 0x10212 __ALIGN_SIZE+0xf212 rsp 0xffff80001e4445d0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=147865 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001e44cee8,0xffffffff825475d0 process=0xffff8000ffff7480 user=0xffff80001e43f000, vmspace=0xfffffd80697f7cc8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 23663 342340 75028 0 2 0 syz-executor.0 *23663 147865 75028 0 7 0x4000000 syz-executor.0 12108 208520 6909 0 2 0 syz-executor.1 12108 249397 6909 0 3 0x4000000 biowait syz-executor.1 6909 416926 32464 0 3 0x82 nanosleep syz-executor.1 75028 18737 32464 0 3 0x82 nanosleep syz-executor.0 32464 166287 70365 0 3 0x82 thrsleep syz-fuzzer 32464 477866 70365 0 3 0x4000082 nanosleep syz-fuzzer 32464 328399 70365 0 3 0x4000082 thrsleep syz-fuzzer 32464 172035 70365 0 3 0x4000082 thrsleep syz-fuzzer 32464 463867 70365 0 3 0x4000082 kqread syz-fuzzer 32464 34723 70365 0 3 0x4000082 thrsleep syz-fuzzer 32464 352654 70365 0 3 0x4000082 thrsleep syz-fuzzer 70365 105233 20546 0 3 0x10008a pause ksh 20546 323690 25191 0 3 0x92 select sshd 62993 103790 1 0 3 0x100083 ttyin getty 25191 117435 1 0 3 0x80 select sshd 74024 488212 55682 73 3 0x100090 kqread syslogd 55682 248497 1 0 3 0x100082 netio syslogd 65975 411853 1 77 3 0x100090 poll dhclient 22423 362149 1 0 3 0x80 poll dhclient 59492 54865 0 0 2 0x14200 zerothread 70064 307890 0 0 3 0x14200 aiodoned aiodoned 17437 318899 0 0 3 0x14200 syncer update 65505 200274 0 0 3 0x14200 cleaner cleaner 31925 252357 0 0 3 0x14200 reaper reaper 33880 56981 0 0 3 0x14200 pgdaemon pagedaemon 97175 133964 0 0 3 0x14200 bored crynlk 91316 326789 0 0 3 0x14200 bored crypto 71436 108222 0 0 3 0x40014200 acpi0 acpi0 54967 237756 0 0 3 0x14200 bored softnet 67535 203089 0 0 3 0x14200 bored systqmp 74642 514649 0 0 3 0x14200 bored systq 26873 400210 0 0 3 0x40014200 bored softclock 27866 479595 0 0 3 0x40014200 idle0 38178 394899 0 0 3 0x14200 bored smr 1 105200 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 9468 6394K 6585K 78643K 10723 0 pcb 13 8K 8K 78643K 47 0 rtable 106 3K 4K 78643K 246 0 ifaddr 48 11K 11K 78643K 82 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 20 0 iov 0 0K 16K 78643K 26 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1284 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 24 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 118 0 sigio 0 0K 0K 78643K 2 0 proc 48 38K 54K 78643K 361 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 4 0 in_multi 29 1K 2K 78643K 40 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 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 191 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 119 22K 32K 78643K 1175 0 UVM aobj 18 4K 4K 78643K 20 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 24 0 NDP 7 0K 0K 78643K 18 0 temp 90 3012K 3076K 78643K 3479 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 6 0 0 1 0 1 1 0 8 0 rtpcb 80 28 0 26 1 0 1 1 0 8 0 rtentry 112 50 0 7 2 0 2 2 0 8 0 unpcb 120 53 0 45 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 141 0 141 1 1 0 1 0 8 0 tcpcb 544 30 0 26 1 0 1 1 0 8 0 inpcb 280 129 0 121 1 0 1 1 0 8 0 rttmr 72 2 0 1 1 0 1 1 0 8 0 nd6 48 5 0 2 1 0 1 1 0 8 0 ppxss 1128 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 259 0 39 16 0 16 16 0 8 0 art_table 32 260 0 39 2 0 2 2 0 8 0 art_node 16 49 0 9 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 8 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 18 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1586 0 187 46 0 46 46 0 8 0 ffsino 240 1586 0 187 83 0 83 83 0 8 0 nchpl 144 1944 0 332 60 0 60 60 0 8 0 uvmvnodes 72 1665 0 0 31 0 31 31 0 8 0 vnodes 208 1665 0 0 88 0 88 88 0 8 0 namei 1024 4989 0 4989 1 0 1 1 0 8 1 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 528 2 0 0 1 0 1 1 0 8 0 scsiplug 64 3 0 3 1 0 1 1 0 8 1 scxspl 192 7266 0 7265 1 0 1 1 0 8 0 plimitpl 152 20 0 13 1 0 1 1 0 8 0 sigapl 432 289 0 275 2 0 2 2 0 8 0 futexpl 56 2527 0 2527 1 0 1 1 0 8 1 knotepl 112 57 0 38 1 0 1 1 0 8 0 kqueuepl 104 15 0 13 1 0 1 1 0 8 0 pipepl 112 202 0 183 1 0 1 1 0 8 0 fdescpl 424 290 0 275 2 0 2 2 0 8 0 filepl 120 1757 0 1659 4 0 4 4 0 8 1 lockfpl 104 60 0 58 1 0 1 1 0 8 0 lockfspl 48 27 0 25 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 143 0 136 1 0 1 1 0 8 0 zombiepl 144 275 0 275 1 0 1 1 0 8 1 processpl 872 304 0 275 4 0 4 4 0 8 0 procpl 632 432 0 395 4 0 4 4 0 8 0 sockpl 384 210 0 192 3 0 3 3 0 8 0 mcl64k 65536 37 0 37 1 0 1 1 0 8 1 mcl8k 8192 8 0 8 1 0 1 1 0 8 1 mcl4k 4096 35 0 35 1 0 1 1 0 8 1 mcl2k 2048 67928 0 67882 15 5 10 14 0 8 3 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 108052 0 107961 16 4 12 13 0 8 4 mbufpl: pool(0xffffffff825577b0:mbufpl): free list modified: page 0xfffffd80551e3000; item ordinal 0; addr 0xfffffd80551e3f00 (p 0xfffffd80551e4000); offset 0x0=0x0 mbufpl: pool(0xffffffff825577b0:mbufpl): page inconsistency: page 0xfffffd80551e3000; item ordinal 1; addr 0xffffad566c1d49c2 bufpl 280 7490 0 1334 440 0 440 440 0 8 0 anonpl 16 57226 0 37652 95 1 94 94 0 107 13 amapchunkpl 152 1650 0 1492 13 0 13 13 0 158 6 amappl16 192 2108 0 1022 65 1 64 65 0 8 8 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 108 0 103 1 0 1 1 0 8 0 amappl12 160 9 0 8 1 0 1 1 0 8 0 amappl11 152 50 0 39 1 0 1 1 0 8 0 amappl10 144 10 0 8 1 0 1 1 0 8 0 amappl9 136 543 0 540 1 0 1 1 0 8 0 amappl8 128 114 0 90 1 0 1 1 0 8 0 amappl7 120 91 0 80 1 0 1 1 0 8 0 amappl6 112 54 0 48 1 0 1 1 0 8 0 amappl5 104 205 0 194 1 0 1 1 0 8 0 amappl4 96 416 0 393 1 0 1 1 0 8 0 amappl3 88 287 0 271 1 0 1 1 0 8 0 amappl2 80 1501 0 1425 3 1 2 3 0 8 0 amappl1 72 15177 0 14736 27 17 10 20 0 8 1 amappl 80 682 0 635 2 0 2 2 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 19 0 2 1 0 1 1 0 8 0 uaddrrnd 24 292 0 275 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 292 0 275 1 0 1 1 0 8 0 vmmpekpl 168 6148 0 6124 2 0 2 2 0 8 0 vmmpepl 168 43632 0 41346 129 10 119 121 0 357 19 vmsppl 272 291 0 275 2 0 2 2 0 8 0 pdppl 4096 590 0 552 6 1 5 6 0 8 0 pvpl 32 164133 0 142508 213 0 213 213 0 265 38 pmappl 200 291 0 275 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 149 0 12 5 0 5 5 0 8 0