login: uvm_fault(0xfffffd8057474cc8, 0x8d23, 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(0xfffffd8057474cc8, 0x8d23, 0, 1) -> e pool_do_put(ffffffff82592790,fffffd8063039a00) at pool_do_put+0x12e sys/kern/subr_pool.c:836 end trace frame: 0xffff80001d403b30, count: 0 ddb> trace pool_do_put(ffffffff82592790,fffffd8063039a00) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff82592790,fffffd8063039a00) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd8063039a00) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff800000a08a00,800100,ffff800000a08a40,0) at rt_ifa_del+0x402 sys/net/route.c:1196 in6_unlink_ifa(ffff800000a08a00,ffff800000a07000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000a07000,ffff80001d404090,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d404090,ffff800000a07000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805e5657d0,8080691a,ffff80001d404090,ffff80001d33a868) at ifioctl+0xe60 sys/net/if.c:2289 sys_ioctl(ffff80001d33a868,ffff80001d4041a8,ffff80001d4041f0) at sys_ioctl+0x4a1 syscall(ffff80001d404270) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1e36c866aa0, count: -11 ddb> show registers rdi 0xffffffff8133ca05 pool_do_put+0x125 rsi 0x154 rbp 0xffff80001d403ae0 rbx 0x8d1b __ALIGN_SIZE+0x7d1b rdx 0x155 rcx 0xffff80001f633000 rax 0xffff80001f633000 r8 0x4 r9 0x5 r10 0x2ab039060bf18aa3 r11 0xebfdd6585b67fa76 r12 0xfffffd8063039a00 r13 0xba97c7d49c998d1b r14 0xffffffff82592790 mbpool r15 0xfffffd80536a1bf0 rip 0xffffffff8133ca0e pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff80001d403a30 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.1) pid=221698 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=61, nice=20 forw=0xffffffffffffffff, list=0xffff80001d339c38,0xffffffff82599f18 process=0xffff8000ffffa740 user=0xffff80001d3ff000, vmspace=0xfffffd8057474cc8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 86321 378987 20888 0 2 0 syz-executor.1 *86321 221698 20888 0 7 0x4000000 syz-executor.1 34203 372879 22897 0 3 0x2 biowait syz-executor.0 20888 305671 22897 0 3 0x82 nanosleep syz-executor.1 22897 28053 5191 0 3 0x82 thrsleep syz-fuzzer 22897 283433 5191 0 3 0x4000082 nanosleep syz-fuzzer 22897 128227 5191 0 3 0x4000082 kqread syz-fuzzer 22897 23636 5191 0 3 0x4000082 thrsleep syz-fuzzer 22897 351857 5191 0 3 0x4000082 thrsleep syz-fuzzer 22897 195704 5191 0 3 0x4000082 thrsleep syz-fuzzer 22897 370940 5191 0 3 0x4000082 thrsleep syz-fuzzer 22897 127820 5191 0 3 0x4000082 thrsleep syz-fuzzer 5191 161274 61423 0 3 0x10008a pause ksh 61423 508503 97298 0 3 0x92 select sshd 8939 151895 1 0 3 0x100083 ttyin getty 97298 57944 1 0 3 0x80 select sshd 69042 243942 28527 73 3 0x100090 kqread syslogd 28527 167368 1 0 3 0x100082 netio syslogd 69783 143609 1 77 3 0x100090 poll dhclient 44461 159401 1 0 3 0x80 poll dhclient 73493 409947 0 0 3 0x14200 bored smr 16917 145385 0 0 2 0x14200 zerothread 18225 365773 0 0 3 0x14200 aiodoned aiodoned 99529 500790 0 0 3 0x14200 syncer update 23450 500887 0 0 3 0x14200 cleaner cleaner 44666 412831 0 0 3 0x14200 reaper reaper 21311 13574 0 0 3 0x14200 pgdaemon pagedaemon 94416 300538 0 0 3 0x14200 bored crynlk 82295 508728 0 0 3 0x14200 bored crypto 65805 487932 0 0 3 0x40014200 acpi0 acpi0 75590 49472 0 0 3 0x14200 bored softnet 76944 362919 0 0 3 0x14200 bored systqmp 23327 279926 0 0 3 0x14200 bored systq 42016 420082 0 0 3 0x40014200 bored softclock 60105 145448 0 0 3 0x40014200 idle0 1 517076 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 9449 6324K 7357K 78643K 10780 0 pcb 13 8K 8K 78643K 27 0 rtable 101 2K 3K 78643K 201 0 ifaddr 39 10K 10K 78643K 42 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 2K 78643K 17 0 iov 0 0K 16K 78643K 8 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1274 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 8 0K 0K 78643K 10 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 73 0 proc 47 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 1 0 in_multi 29 1K 2K 78643K 41 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 183 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 90 37K 37K 78643K 979 0 UVM aobj 4 2K 2K 78643K 6 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 12 0 NDP 5 0K 0K 78643K 10 0 temp 66 3028K 3092K 78643K 2919 0 kqueue 3 4K 5K 78643K 7 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 21 0 19 1 0 1 1 0 8 0 rtentry 112 50 0 8 2 0 2 2 0 8 0 unpcb 120 45 0 37 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 106 0 106 1 0 1 1 0 8 1 tcpcb 544 20 0 16 1 0 1 1 0 8 0 inpcb 280 64 0 55 1 0 1 1 0 8 0 nd6 48 8 0 3 1 0 1 1 0 8 0 pkpcb 40 12 0 12 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 215 0 40 13 0 13 13 0 8 0 art_table 32 216 0 40 2 0 2 2 0 8 0 art_node 16 49 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 8 0 2 1 0 1 1 0 8 0 shmpl 112 4 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1469 0 71 46 0 46 46 0 8 0 ffsino 240 1469 0 71 83 0 83 83 0 8 0 nchpl 144 1750 0 143 60 0 60 60 0 8 0 uvmvnodes 72 1562 0 0 29 0 29 29 0 8 0 vnodes 208 1562 0 0 83 0 83 83 0 8 0 namei 1024 4249 0 4249 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 1 0 1 1 0 1 1 0 8 1 scxspl 192 4949 0 4948 1 0 1 1 0 8 0 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 424 259 0 231 4 0 4 4 0 8 0 futexpl 56 783 0 783 1 0 1 1 0 8 1 knotepl 112 55 0 36 1 0 1 1 0 8 0 kqueuepl 144 6 0 4 1 0 1 1 0 8 0 pipelkpl 16 75 0 65 1 0 1 1 0 8 0 pipepl 120 150 0 131 1 0 1 1 0 8 0 fdescpl 432 245 0 231 2 0 2 2 0 8 0 filepl 120 1227 0 1130 4 0 4 4 0 8 1 lockfpl 104 17 0 16 1 0 1 1 0 8 0 lockfspl 48 9 0 8 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 64 0 57 1 0 1 1 0 8 0 zombiepl 144 231 0 231 1 0 1 1 0 8 1 processpl 920 259 0 231 4 0 4 4 0 8 0 procpl 624 311 0 275 4 0 4 4 0 8 1 sockpl 400 142 0 123 3 0 3 3 0 8 1 mcl64k 65536 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl4k 4096 11 0 11 1 0 1 1 0 8 1 mcl2k 2048 60635 0 60588 20 6 14 18 0 8 7 mtagpl 80 12 0 2 2 1 1 1 0 8 0 mbufpl 256 96259 0 96085 12 1 11 11 0 8 0 mbufpl: pool(0xffffffff82592790:mbufpl): free list modified: page 0xfffffd8063039000; item ordinal 0; addr 0xfffffd8063039b00 (p 0xfffffd80536a1000); offset 0x0=0x0 mbufpl: pool(0xffffffff82592790:mbufpl): page inconsistency: page 0xfffffd8063039000; item ordinal 1; addr 0x8d1b bufpl 280 4033 0 161 277 0 277 277 0 8 0 anonpl 16 36491 0 22858 57 2 55 55 0 107 0 amapchunkpl 152 1072 0 945 8 0 8 8 0 158 1 amappl16 192 1021 0 282 37 0 37 37 0 8 0 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 30 0 27 2 1 1 1 0 8 0 amappl13 168 23 0 22 1 0 1 1 0 8 0 amappl12 160 2 0 2 1 1 0 1 0 8 0 amappl11 152 63 0 51 1 0 1 1 0 8 0 amappl10 144 16 0 10 1 0 1 1 0 8 0 amappl9 136 393 0 389 1 0 1 1 0 8 0 amappl8 128 276 0 266 1 0 1 1 0 8 0 amappl7 120 107 0 95 1 0 1 1 0 8 0 amappl6 112 22 0 19 1 0 1 1 0 8 0 amappl5 104 189 0 179 1 0 1 1 0 8 0 amappl4 96 436 0 408 1 0 1 1 0 8 0 amappl3 88 108 0 100 1 0 1 1 0 8 0 amappl2 80 1155 0 1090 3 0 3 3 0 8 1 amappl1 72 14152 0 13746 27 10 17 20 0 8 8 amappl 80 537 0 496 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 5 0 2 1 0 1 1 0 8 0 uaddrrnd 24 247 0 231 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 247 0 231 1 0 1 1 0 8 0 vmmpekpl 168 5722 0 5695 2 0 2 2 0 8 0 vmmpepl 168 36201 0 34424 130 6 124 124 0 357 46 vmsppl 272 246 0 231 2 0 2 2 0 8 0 pdppl 4096 500 0 464 6 0 6 6 0 8 1 pvpl 32 128317 0 111749 134 0 134 134 0 265 0 pmappl 200 246 0 231 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 153 0 9 5 0 5 5 0 8 0