uvm_fault(0xfffffd806bc09bb0, 0xc073, 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(0xfffffd806bc09bb0, 0xc073, 0, 1) -> e pool_do_put(ffffffff82570910,fffffd806bc21300) at pool_do_put+0x12e sys/kern/subr_pool.c:836 end trace frame: 0xffff80001d43bca0, count: 0 ddb> trace pool_do_put(ffffffff82570910,fffffd806bc21300) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82570910,fffffd806bc21300) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd806bc21300) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff800000a30300,800100,ffff800000a30340,0) at rt_ifa_del+0x402 sys/net/route.c:1196 in6_unlink_ifa(ffff800000a30300,ffff8000009f0800) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff8000009f0800,ffff80001d43c200,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d43c200,ffff8000009f0800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805e557c80,8080691a,ffff80001d43c200,ffff80001d34a388) at ifioctl+0xe60 sys/net/if.c:2290 sys_ioctl(ffff80001d34a388,ffff80001d43c318,ffff80001d43c360) at sys_ioctl+0x4a1 syscall(ffff80001d43c3e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee4816522b0, count: -11 ddb> show registers rdi 0xffffffff82001665 pool_do_put+0x125 rsi 0x13b rbp 0xffff80001d43bc50 rbx 0xc06b __ALIGN_SIZE+0xb06b rdx 0x13c rcx 0xffff80001d445000 rax 0xffff80001d445000 r8 0x4 r9 0x5 r10 0xf2e6648c1a0b2013 r11 0xfac7f0a31c075d92 r12 0xfffffd806bc21300 r13 0xac88eb2d91d1c06b r14 0xffffffff82570910 mbpool r15 0xfffffd806c3c4bd0 rip 0xffffffff8200166e pool_do_put+0x12e cs 0x8 rflags 0x10296 __ALIGN_SIZE+0xf296 rsp 0xffff80001d43bba0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=104090 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=73, nice=20 forw=0xffffffffffffffff, list=0xffff80001d349008,0xffffffff82566a90 process=0xffff8000ffffb510 user=0xffff80001d437000, vmspace=0xfffffd806bc09bb0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 90621 239829 19958 0 2 0 syz-executor.0 *90621 104090 19958 0 7 0x4000000 syz-executor.0 38760 401854 42544 0 2 0 syz-executor.1 38760 206499 42544 0 3 0x4000080 lockf syz-executor.1 42544 444506 35278 0 3 0x82 nanosleep syz-executor.1 97205 66289 0 0 3 0x14200 bored sosplice 19958 417294 35278 0 3 0x82 nanosleep syz-executor.0 35278 316582 9950 0 3 0x82 thrsleep syz-fuzzer 35278 80382 9950 0 3 0x4000082 thrsleep syz-fuzzer 35278 68102 9950 0 3 0x4000082 thrsleep syz-fuzzer 35278 424847 9950 0 3 0x4000082 thrsleep syz-fuzzer 35278 42830 9950 0 3 0x4000082 thrsleep syz-fuzzer 35278 156858 9950 0 3 0x4000082 kqread syz-fuzzer 35278 231194 9950 0 3 0x4000082 thrsleep syz-fuzzer 9950 503125 13127 0 3 0x10008a pause ksh 13127 16557 73743 0 3 0x92 select sshd 42036 15097 1 0 3 0x100083 ttyin getty 73743 12177 1 0 3 0x80 select sshd 80068 460783 32158 73 3 0x100090 kqread syslogd 32158 494685 1 0 3 0x100082 netio syslogd 96467 454054 0 0 2 0x14200 zerothread 54726 173519 0 0 3 0x14200 aiodoned aiodoned 80070 458348 0 0 3 0x14200 syncer update 19892 31564 0 0 3 0x14200 cleaner cleaner 72965 511610 0 0 3 0x14200 reaper reaper 58815 9361 0 0 3 0x14200 pgdaemon pagedaemon 83074 391591 0 0 3 0x14200 bored crynlk 93789 82175 0 0 3 0x14200 bored crypto 990 159340 0 0 3 0x40014200 acpi0 acpi0 35609 213829 0 0 3 0x14200 bored softnet 97179 341145 0 0 3 0x14200 bored systqmp 34862 163470 0 0 3 0x14200 bored systq 59090 179837 0 0 3 0x40014200 bored softclock 23285 126442 0 0 3 0x40014200 idle0 26207 249461 0 0 3 0x14200 bored smr 1 350594 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 9512 6308K 6662K 78643K 10763 0 pcb 13 8K 8K 78643K 88 0 rtable 117 11K 12K 78643K 351 0 ifaddr 81 15K 15K 78643K 131 0 counters 21 16K 16K 78643K 27 0 ioctlops 0 0K 2K 78643K 32 0 iov 0 0K 12K 78643K 61 0 mount 1 1K 1K 78643K 1 0 vnodes 1214 76K 77K 78643K 1333 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 5K 78643K 9 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 60 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 317 0 sigio 0 0K 0K 78643K 2 0 proc 44 30K 63K 78643K 446 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 214 0 in_multi 55 3K 3K 78643K 91 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 230 0 pfkey data 0 0K 0K 78643K 2 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 106 53K 54K 78643K 1636 0 UVM aobj 17 4K 4K 78643K 29 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 59 0 NDP 14 0K 0K 78643K 26 0 temp 138 3018K 3098K 78643K 29891 0 kqueue 3 4K 12K 78643K 32 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 14 0 8 1 0 1 1 0 8 0 rtpcb 80 74 0 73 1 0 1 1 0 8 0 rtentry 112 74 0 27 2 0 2 2 0 8 0 unpcb 120 621 0 615 2 1 1 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 72 0 72 1 1 0 1 0 8 0 tcpcb 544 308 0 304 2 1 1 2 0 8 0 ipq 40 4 0 3 1 0 1 1 0 8 0 ipqe 40 136 0 135 1 0 1 1 0 8 0 inpcb 280 580 0 575 3 1 2 2 0 8 1 nd6 48 6 0 2 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 304 0 69 16 1 15 16 0 8 0 art_table 32 306 0 69 2 0 2 2 0 8 0 art_node 16 73 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 6 1 1 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 52 0 42 1 0 1 1 0 8 0 shmpl 112 27 0 12 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1890 0 494 46 0 46 46 0 8 0 ffsino 240 1890 0 494 83 0 83 83 0 8 0 nchpl 144 2587 0 988 60 0 60 60 0 8 0 uvmvnodes 72 1972 0 0 36 0 36 36 0 8 0 vnodes 208 1972 0 0 104 0 104 104 0 8 0 namei 1024 7643 0 7643 1 0 1 1 0 8 1 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 528 3 0 0 1 0 1 1 0 8 0 scxspl 192 7537 0 7537 1 0 1 1 0 8 1 plimitpl 152 52 0 46 1 0 1 1 0 8 0 sigapl 432 485 0 473 2 0 2 2 0 8 0 futexpl 56 9412 0 9412 1 0 1 1 0 8 1 knotepl 112 97 0 78 1 0 1 1 0 8 0 kqueuepl 104 76 0 74 1 0 1 1 0 8 0 pipelkpl 16 128 0 118 1 0 1 1 0 8 0 pipepl 120 256 0 237 1 0 1 1 0 8 0 fdescpl 432 486 0 473 2 0 2 2 0 8 0 filepl 120 4228 0 4136 5 1 4 5 0 8 1 lockfpl 104 67 0 63 2 1 1 1 0 8 0 lockfspl 48 27 0 24 2 1 1 1 0 8 0 sessionpl 112 18 0 10 1 0 1 1 0 8 0 pgrppl 48 22 0 14 1 0 1 1 0 8 0 ucredpl 96 521 0 515 1 0 1 1 0 8 0 zombiepl 144 473 0 473 1 0 1 1 0 8 1 processpl 896 501 0 473 4 0 4 4 0 8 0 procpl 624 887 0 851 4 0 4 4 0 8 1 sockpl 400 1284 0 1272 7 4 3 7 0 8 1 mcl64k 65536 29 0 29 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 13 0 13 1 0 1 1 0 8 1 mcl9k 9216 9 0 9 2 1 1 1 0 8 1 mcl8k 8192 18 0 18 1 1 0 1 0 8 0 mcl4k 4096 51 0 51 2 1 1 1 0 8 1 mcl2k2 2112 4 0 4 1 1 0 1 0 8 0 mcl2k 2048 64961 0 64913 17 10 7 14 0 8 0 mtagpl 80 8 0 6 2 1 1 1 0 8 0 mbufpl 256 105469 0 105375 31 21 10 27 0 8 0 mbufpl: pool(0xffffffff82570910:mbufpl): free list modified: page 0xfffffd806bc21000; item ordinal 2; addr 0xfffffd806bc21400 (p 0xfffffd806c3c4000); offset 0x0=0x0 mbufpl: pool(0xffffffff82570910:mbufpl): page inconsistency: page 0xfffffd806bc21000; item ordinal 3; addr 0xc06b bufpl 280 6026 0 618 387 0 387 387 0 8 0 anonpl 16 63237 0 46869 86 10 76 84 0 107 7 amapchunkpl 152 2405 0 2266 17 9 8 16 0 158 1 amappl16 192 2183 0 1278 47 1 46 47 0 8 0 amappl15 184 52 0 48 1 0 1 1 0 8 0 amappl14 176 178 0 173 1 0 1 1 0 8 0 amappl13 168 29 0 27 1 0 1 1 0 8 0 amappl12 160 8 0 7 1 0 1 1 0 8 0 amappl11 152 53 0 49 1 0 1 1 0 8 0 amappl10 144 13 0 11 1 0 1 1 0 8 0 amappl9 136 648 0 644 1 0 1 1 0 8 0 amappl8 128 225 0 204 1 0 1 1 0 8 0 amappl7 120 98 0 87 1 0 1 1 0 8 0 amappl6 112 57 0 53 1 0 1 1 0 8 0 amappl5 104 209 0 202 1 0 1 1 0 8 0 amappl4 96 558 0 533 1 0 1 1 0 8 0 amappl3 88 423 0 412 1 0 1 1 0 8 0 amappl2 80 3084 0 3013 3 1 2 3 0 8 0 amappl1 72 18597 0 18195 26 17 9 20 0 8 0 amappl 80 1130 0 1087 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 28 0 12 1 0 1 1 0 8 0 uaddrrnd 24 489 0 473 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 489 0 473 1 0 1 1 0 8 0 vmmpekpl 168 7232 0 7204 2 0 2 2 0 8 0 vmmpepl 168 65402 0 63392 153 30 123 147 0 357 35 vmsppl 272 488 0 473 3 1 2 2 0 8 1 pdppl 4096 984 0 949 6 1 5 6 0 8 0 pvpl 32 221023 0 201598 238 8 230 238 0 265 70 pmappl 200 488 0 473 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 182 0 44 5 0 5 5 0 8 0