QàmYh fxuϸTRGJG?l5t2iش ]֢":No%fn;3c(Gx{|0`6PƷ PW>,-߽2QàmYh fxuϸTRGJG?l5t2iش ]֢":No%fn;3c(Gx{|0`6PƷ PW>,-߽2panic: pool_do_get: art_heap4 free list modified: page 0xfffffd806853d000; item addr 0xfffffd806853d000; offset 0x0=0x0 != 0x434126b8acd80dfb Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *237997 67900 0 0 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82458457) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff827e33c8,a,ffff80001d7722a8) at pool_do_get+0x42a sys/kern/subr_pool.c:738 pool_get(ffffffff827e33c8,a) at pool_get+0xb5 sys/kern/subr_pool.c:581 art_table_get(ffff80000007dd40,fffffd8057871648,10) at art_table_get+0x12e sys/net/art.c:722 art_insert(ffff80000007dd40,fffffd805e458ca0,ffff800000ac1268,80) at art_insert+0x155 sys/net/art.c:387 rtable_insert(0,ffff800000ac1260,0,ffff800000b3c940,8,fffffd8057b2a4d8) at rtable_insert+0x2b4 sys/net/rtable.c:554 rtrequest(1,ffff80001d7725c8,8,ffff80001d772690,0) at rtrequest+0x8be sys/net/route.c:941 rt_ifa_add(ffff800000b3c900,40204,ffff80001d772820,0) at rt_ifa_add+0x25c sys/net/route.c:1131 mrt6_mcast_add(ffff800000acc800,63c,ffff80001d772820) at mrt6_mcast_add+0x8e sys/netinet6/ip6_mroute.c:1257 mf6c_add_route(ffff800000acc800,ffff80001d772800,ffff80001d772820,ffff80001d7728e8,1) at mf6c_add_route+0x44 sys/netinet6/ip6_mroute.c:669 mf6c_update(ffff80001d7728e8,1,0) at mf6c_update+0x3d9 sys/netinet6/ip6_mroute.c:768 add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d mf6c_add sys/netinet6/ip6_mroute.c:818 [inline] add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d sys/netinet6/ip6_mroute.c:831 sys_setsockopt(ffff80001d6c1288,ffff80001d772a28,ffff80001d772a70) at sys_setsockopt+0x214 sys/kern/uipc_syscalls.c:965 end trace frame: 0xffff80001d772ae0, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic pool_do_get: art_heap4 free list modified: page 0xfffffd806853d000; item addr 0xfffffd806853d000; offset 0x0=0x0 != 0x434126b8acd80dfb ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82458457) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff827e33c8,a,ffff80001d7722a8) at pool_do_get+0x42a sys/kern/subr_pool.c:738 pool_get(ffffffff827e33c8,a) at pool_get+0xb5 sys/kern/subr_pool.c:581 art_table_get(ffff80000007dd40,fffffd8057871648,10) at art_table_get+0x12e sys/net/art.c:722 art_insert(ffff80000007dd40,fffffd805e458ca0,ffff800000ac1268,80) at art_insert+0x155 sys/net/art.c:387 rtable_insert(0,ffff800000ac1260,0,ffff800000b3c940,8,fffffd8057b2a4d8) at rtable_insert+0x2b4 sys/net/rtable.c:554 rtrequest(1,ffff80001d7725c8,8,ffff80001d772690,0) at rtrequest+0x8be sys/net/route.c:941 rt_ifa_add(ffff800000b3c900,40204,ffff80001d772820,0) at rt_ifa_add+0x25c sys/net/route.c:1131 mrt6_mcast_add(ffff800000acc800,63c,ffff80001d772820) at mrt6_mcast_add+0x8e sys/netinet6/ip6_mroute.c:1257 mf6c_add_route(ffff800000acc800,ffff80001d772800,ffff80001d772820,ffff80001d7728e8,1) at mf6c_add_route+0x44 sys/netinet6/ip6_mroute.c:669 mf6c_update(ffff80001d7728e8,1,0) at mf6c_update+0x3d9 sys/netinet6/ip6_mroute.c:768 add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d mf6c_add sys/netinet6/ip6_mroute.c:818 [inline] add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d sys/netinet6/ip6_mroute.c:831 sys_setsockopt(ffff80001d6c1288,ffff80001d772a28,ffff80001d772a70) at sys_setsockopt+0x214 sys/kern/uipc_syscalls.c:965 syscall(ffff80001d772af0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeea4eb98a80, count: -16 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d772110 rbx 0xffff80001d7721c0 rdx 0x2 rcx 0 rax 0x1 r8 0xffffffff8162e73f kprintf+0x15f r9 0x1 r10 0x2 r11 0xdc643234cba201f5 r12 0x3000000008 r13 0xffff80001d772120 r14 0x100 r15 0x1 rip 0xffffffff816e5988 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d772100 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=237997 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6c2128,0xffffffff8280edd8 process=0xffff8000ffffb938 user=0xffff80001d76d000, vmspace=0xfffffd806bc0add0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 67900 104154 17996 0 2 0 syz-executor.0 *67900 237997 17996 0 7 0x4000000 syz-executor.0 17996 382010 77506 0 3 0x82 nanosleep syz-executor.0 6763 489858 0 0 3 0x14200 bored sosplice 55437 290062 77506 0 2 0x2 syz-executor.1 77506 202167 33411 0 3 0x82 thrsleep syz-fuzzer 77506 397606 33411 0 3 0x4000082 nanosleep syz-fuzzer 77506 282105 33411 0 3 0x4000082 kqread syz-fuzzer 77506 41102 33411 0 3 0x4000082 thrsleep syz-fuzzer 77506 454264 33411 0 3 0x4000082 thrsleep syz-fuzzer 77506 230617 33411 0 3 0x4000082 thrsleep syz-fuzzer 77506 519113 33411 0 3 0x4000082 thrsleep syz-fuzzer 77506 249606 33411 0 3 0x4000082 thrsleep syz-fuzzer 33411 406323 85766 0 3 0x10008a pause ksh 85766 211675 26302 0 3 0x92 select sshd 62482 284309 1 0 3 0x100083 ttyin getty 26302 265612 1 0 3 0x80 select sshd 258 121569 46244 73 3 0x100090 kqread syslogd 46244 64350 1 0 3 0x100082 netio syslogd 85910 378056 1 77 3 0x100090 poll dhclient 11557 246267 1 0 3 0x80 poll dhclient 43904 312157 0 0 3 0x14200 bored smr 66645 456783 0 0 2 0x14200 zerothread 48973 165664 0 0 3 0x14200 aiodoned aiodoned 91039 269463 0 0 3 0x14200 syncer update 88993 489641 0 0 3 0x14200 cleaner cleaner 45452 52321 0 0 3 0x14200 reaper reaper 89495 353908 0 0 3 0x14200 pgdaemon pagedaemon 16812 230037 0 0 3 0x14200 bored crynlk 71488 284545 0 0 3 0x14200 bored crypto 25319 230758 0 0 3 0x40014200 acpi0 acpi0 99420 478214 0 0 3 0x14200 bored softnet 65842 399320 0 0 3 0x14200 bored systqmp 98103 257351 0 0 3 0x14200 bored systq 95766 90908 0 0 3 0x40014200 bored softclock 8697 253840 0 0 3 0x40014200 idle0 1 30030 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 9548 6857K 7307K 78643K 11925 0 pcb 14 8K 8K 78643K 76 0 rtable 116 17K 18K 78643K 459 0 ifaddr 77 16K 17K 78643K 143 0 counters 21 16K 16K 78643K 27 0 ioctlops 0 0K 4K 78643K 73 0 iov 0 0K 16K 78643K 44 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1591 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 60 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 335 0 sigio 0 0K 0K 78643K 6 0 proc 49 38K 55K 78643K 425 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 46 0 in_multi 55 3K 3K 78643K 93 0 ether_multi 1 0K 0K 78643K 8 0 mrt 2 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 216 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 123 23K 42K 78643K 1651 0 UVM aobj 12 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 63 0 NDP 11 0K 0K 78643K 24 0 temp 98 3857K 3921K 78643K 10787 0 kqueue 4 6K 16K 78643K 95 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 9 0 3 1 0 1 1 0 8 0 rtpcb 80 45 0 43 1 0 1 1 0 8 0 rtentry 112 66 0 33 2 0 2 2 0 8 0 unpcb 120 268 0 259 1 0 1 1 0 8 0 syncache 264 8 0 8 3 2 1 1 0 8 1 sackhl 24 1 0 1 1 0 1 1 0 8 1 tcpqe 32 129 0 129 1 1 0 1 0 8 0 tcpcb 544 184 0 180 1 0 1 1 0 8 0 ipq 40 3 0 3 1 1 0 1 0 8 0 ipqe 40 92 0 92 1 1 0 1 0 8 0 inpcb 280 437 0 429 3 1 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 10 0 6 1 0 1 1 0 8 0 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pfrktable 1344 56 0 44 2 0 2 2 0 8 1 pftag 88 9 0 4 1 0 1 1 0 8 0 pfstitem 24 1 0 0 1 0 1 1 0 8 0 pfstkey 112 2 0 1 1 0 1 1 0 8 0 pfstate 328 2 0 1 1 0 1 1 0 8 0 pfrule 1360 22 0 8 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 278 0 127 13 1 12 13 0 8 2 art_heap4: pool(0xffffffff827e33c8:art_heap4): free list modified: page 0xfffffd806853d000; item ordinal 0; addr 0xfffffd806853d000 (p 0xfffffd8053f64000); offset 0x0=0x0 pool(art_heap4): free list modified: page 0xfffffd806853d000; item ordinal 0; addr 0xfffffd806853d000 (p 0xfffffd8053f64000); offset 0x0=0x0 art_heap4: pool(0xffffffff827e33c8:art_heap4): page inconsistency: page 0xfffffd806853d000; item ordinal 1; addr 0xb85ba010b7b129b6 art_table 32 280 0 127 2 0 2 2 0 8 0 art_node 16 65 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 56 0 46 1 0 1 1 0 8 0 shmpl 112 16 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1858 0 465 88 0 88 88 0 8 0 ffsino 240 1858 0 465 83 0 83 83 0 8 0 nchpl 144 2495 0 918 60 0 60 60 0 8 0 uvmvnodes 72 2216 0 0 41 0 41 41 0 8 0 vnodes 208 2216 0 0 117 0 117 117 0 8 0 namei 1024 6995 0 6995 1 0 1 1 0 8 1 vmpool 528 1 0 1 1 1 0 1 0 8 0 pfiaddrpl 120 24 0 14 1 0 1 1 0 8 0 scxspl 192 7702 0 7702 1 0 1 1 0 8 1 plimitpl 152 35 0 28 1 0 1 1 0 8 0 sigapl 424 519 0 490 4 0 4 4 0 8 0 futexpl 56 7390 0 7390 1 0 1 1 0 8 1 knotepl 112 168 0 148 1 0 1 1 0 8 0 kqueuepl 144 175 0 172 1 0 1 1 0 8 0 pipelkpl 16 112 0 102 1 0 1 1 0 8 0 pipepl 120 224 0 205 1 0 1 1 0 8 0 fdescpl 432 504 0 490 2 0 2 2 0 8 0 filepl 120 3302 0 3204 4 0 4 4 0 8 1 lockfpl 104 109 0 108 1 0 1 1 0 8 0 lockfspl 48 35 0 34 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 22 0 12 1 0 1 1 0 8 0 ucredpl 96 290 0 283 1 0 1 1 0 8 0 zombiepl 144 490 0 490 1 0 1 1 0 8 1 processpl 920 519 0 490 4 0 4 4 0 8 0 procpl 624 881 0 844 4 0 4 4 0 8 0 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 400 750 0 731 4 0 4 4 0 8 2 mcl64k 65536 27 0 27 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 9 0 8 2 1 1 1 0 8 0 mcl9k 9216 6 0 6 1 0 1 1 0 8 1 mcl8k 8192 14 0 14 1 0 1 1 0 8 1 mcl4k 4096 41 0 41 2 1 1 1 0 8 1 mcl2k2 2112 3 0 3 2 1 1 1 0 8 1 mcl2k 2048 76965 0 76914 18 10 8 14 0 8 1 mtagpl 80 171 0 68 4 1 3 3 0 8 0 mbufpl 256 130678 0 130369 46 20 26 29 0 8 4 bufpl 280 4028 0 132 279 0 279 279 0 8 0 anonpl 16 70739 0 55332 82 2 80 81 0 107 14 amapchunkpl 152 3242 0 3114 20 9 11 20 0 158 5 amappl16 192 2716 0 1839 61 9 52 57 0 8 8 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 76 0 69 1 0 1 1 0 8 0 amappl13 168 320 0 315 1 0 1 1 0 8 0 amappl12 160 57 0 53 2 1 1 1 0 8 0 amappl11 152 54 0 44 1 0 1 1 0 8 0 amappl10 144 13 0 9 1 0 1 1 0 8 0 amappl9 136 467 0 465 1 0 1 1 0 8 0 amappl8 128 446 0 402 2 0 2 2 0 8 0 amappl7 120 111 0 100 1 0 1 1 0 8 0 amappl6 112 23 0 18 1 0 1 1 0 8 0 amappl5 104 260 0 250 1 0 1 1 0 8 0 amappl4 96 624 0 594 1 0 1 1 0 8 0 amappl3 88 303 0 295 1 0 1 1 0 8 0 amappl2 80 3159 0 3093 2 0 2 2 0 8 0 amappl1 72 18702 0 18288 23 14 9 17 0 8 0 amappl 80 1138 0 1098 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 17 0 6 1 0 1 1 0 8 0 uaddrrnd 24 505 0 491 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 505 0 491 1 0 1 1 0 8 0 vmmpekpl 168 7180 0 7155 2 0 2 2 0 8 0 vmmpepl 168 67866 0 65899 131 11 120 120 0 357 34 vmsppl 272 504 0 491 2 1 1 2 0 8 0 pdppl 4096 1016 0 982 6 1 5 6 0 8 0 pvpl 32 209074 0 190690 192 1 191 192 0 265 35 pmappl 200 504 0 491 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 279 0 37 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82458457) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff827e33c8,a,ffff80001d7722a8) at pool_do_get+0x42a sys/kern/subr_pool.c:738 pool_get(ffffffff827e33c8,a) at pool_get+0xb5 sys/kern/subr_pool.c:581 art_table_get(ffff80000007dd40,fffffd8057871648,10) at art_table_get+0x12e sys/net/art.c:722 art_insert(ffff80000007dd40,fffffd805e458ca0,ffff800000ac1268,80) at art_insert+0x155 sys/net/art.c:387 rtable_insert(0,ffff800000ac1260,0,ffff800000b3c940,8,fffffd8057b2a4d8) at rtable_insert+0x2b4 sys/net/rtable.c:554 rtrequest(1,ffff80001d7725c8,8,ffff80001d772690,0) at rtrequest+0x8be sys/net/route.c:941 rt_ifa_add(ffff800000b3c900,40204,ffff80001d772820,0) at rt_ifa_add+0x25c sys/net/route.c:1131 mrt6_mcast_add(ffff800000acc800,63c,ffff80001d772820) at mrt6_mcast_add+0x8e sys/netinet6/ip6_mroute.c:1257 mf6c_add_route(ffff800000acc800,ffff80001d772800,ffff80001d772820,ffff80001d7728e8,1) at mf6c_add_route+0x44 sys/netinet6/ip6_mroute.c:669 mf6c_update(ffff80001d7728e8,1,0) at mf6c_update+0x3d9 sys/netinet6/ip6_mroute.c:768 add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d mf6c_add sys/netinet6/ip6_mroute.c:818 [inline] add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d sys/netinet6/ip6_mroute.c:831 sys_setsockopt(ffff80001d6c1288,ffff80001d772a28,ffff80001d772a70) at sys_setsockopt+0x214 sys/kern/uipc_syscalls.c:965 syscall(ffff80001d772af0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeea4eb98a80, count: -16 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82458457) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff827e33c8,a,ffff80001d7722a8) at pool_do_get+0x42a sys/kern/subr_pool.c:738 pool_get(ffffffff827e33c8,a) at pool_get+0xb5 sys/kern/subr_pool.c:581 art_table_get(ffff80000007dd40,fffffd8057871648,10) at art_table_get+0x12e sys/net/art.c:722 art_insert(ffff80000007dd40,fffffd805e458ca0,ffff800000ac1268,80) at art_insert+0x155 sys/net/art.c:387 rtable_insert(0,ffff800000ac1260,0,ffff800000b3c940,8,fffffd8057b2a4d8) at rtable_insert+0x2b4 sys/net/rtable.c:554 rtrequest(1,ffff80001d7725c8,8,ffff80001d772690,0) at rtrequest+0x8be sys/net/route.c:941 rt_ifa_add(ffff800000b3c900,40204,ffff80001d772820,0) at rt_ifa_add+0x25c sys/net/route.c:1131 mrt6_mcast_add(ffff800000acc800,63c,ffff80001d772820) at mrt6_mcast_add+0x8e sys/netinet6/ip6_mroute.c:1257 mf6c_add_route(ffff800000acc800,ffff80001d772800,ffff80001d772820,ffff80001d7728e8,1) at mf6c_add_route+0x44 sys/netinet6/ip6_mroute.c:669 mf6c_update(ffff80001d7728e8,1,0) at mf6c_update+0x3d9 sys/netinet6/ip6_mroute.c:768 add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d mf6c_add sys/netinet6/ip6_mroute.c:818 [inline] add_m6fc(fffffd806715a7d0,fffffd8006028000) at add_m6fc+0x24d sys/netinet6/ip6_mroute.c:831 sys_setsockopt(ffff80001d6c1288,ffff80001d772a28,ffff80001d772a70) at sys_setsockopt+0x214 sys/kern/uipc_syscalls.c:965 syscall(ffff80001d772af0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeea4eb98a80, count: -16