panic: pool_do_get: sockpl free list modified: page 0xfffffd807c050000; item addr 0xfffffd807c050e28; offset 0x0=0x0 != 0x739231093e35e373 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *185987 60417 0 0 0x4000000 0 syz-executor.7 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82608c37) at panic+0x161 sys/kern/subr_prf.c:202 pool_do_get(ffffffff82a90b78,9,ffff800026337558) at pool_do_get+0x427 sys/kern/subr_pool.c:740 pool_get(ffffffff82a90b78,9) at pool_get+0xb3 sys/kern/subr_pool.c:584 socreate(2,ffff800026337628,2,0) at socreate+0xa7 soalloc sys/kern/uipc_socket.c:147 [inline] socreate(2,ffff800026337628,2,0) at socreate+0xa7 sys/kern/uipc_socket.c:176 sys_socket(ffff8000216322a0,ffff8000263376b8,ffff800026337710) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff800026337780) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfeae5a8e0c0, count: 7 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 *cpu0: pool_do_get: sockpl free list modified: page 0xfffffd807c050000; item addr 0xfffffd807c050e28; offset 0x0=0x0 != 0x739231093e35e373 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82608c37) at panic+0x161 sys/kern/subr_prf.c:202 pool_do_get(ffffffff82a90b78,9,ffff800026337558) at pool_do_get+0x427 sys/kern/subr_pool.c:740 pool_get(ffffffff82a90b78,9) at pool_get+0xb3 sys/kern/subr_pool.c:584 socreate(2,ffff800026337628,2,0) at socreate+0xa7 soalloc sys/kern/uipc_socket.c:147 [inline] socreate(2,ffff800026337628,2,0) at socreate+0xa7 sys/kern/uipc_socket.c:176 sys_socket(ffff8000216322a0,ffff8000263376b8,ffff800026337710) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff800026337780) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfeae5a8e0c0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000263373d0 rbx 0x739231093e35e373 rdx 0 rcx 0 rax 0xffff8000216322a0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xdea527686c33bd3a r11 0x21ad0a79e272cb3c r12 0 r13 0xfffffd807c050e28 r14 0 r15 0x1 rip 0xffffffff823da9f8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000263373c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.7) pid=185987 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800021610fd0,0xffff800021632fd0 process=0xffff8000ffff7398 user=0xffff800026332000, vmspace=0xfffffd807c235dd8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 56498 26089 65285 0 2 0 syz-executor.1 94951 298263 27030 0 2 0 syz-executor.5 94951 87637 27030 0 2 0x4000000 syz-executor.5 94951 377703 27030 0 3 0x4000080 fsleep syz-executor.5 60417 237830 38830 0 2 0 syz-executor.7 *60417 185987 38830 0 7 0x4000000 syz-executor.7 60417 77028 38830 0 3 0x4000080 fsleep syz-executor.7 97908 188381 84583 0 2 0 syz-executor.6 97908 423821 84583 0 3 0x4000080 fsleep syz-executor.6 64821 159680 30955 0 2 0 syz-executor.4 64821 59366 30955 0 3 0x4000080 fsleep syz-executor.4 32186 246846 10075 0 2 0x2 syz-executor.3 84583 324317 10075 0 3 0x82 nanoslp syz-executor.6 30955 398105 10075 0 3 0x82 nanoslp syz-executor.4 38830 205221 10075 0 3 0x82 nanoslp syz-executor.7 6350 141286 0 0 3 0x14200 acct acct 39827 163849 10075 0 2 0x2 syz-executor.0 7747 67073 1 0 3 0x100083 ttyin getty 27030 115677 10075 0 3 0x82 nanoslp syz-executor.5 33486 128239 0 0 3 0x14200 bored sosplice 175 400282 10075 0 3 0x82 nanoslp syz-executor.2 65285 446831 10075 0 3 0x82 nanoslp syz-executor.1 10075 454376 10930 0 3 0x82 thrsleep syz-fuzzer 10075 106471 10930 0 3 0x4000082 nanoslp syz-fuzzer 10075 274964 10930 0 3 0x4000082 kqread syz-fuzzer 10075 457909 10930 0 3 0x4000082 thrsleep syz-fuzzer 10075 175919 10930 0 3 0x4000082 thrsleep syz-fuzzer 10075 515813 10930 0 3 0x4000082 thrsleep syz-fuzzer 10075 148753 10930 0 3 0x4000082 thrsleep syz-fuzzer 10075 325826 10930 0 3 0x4000082 thrsleep syz-fuzzer 10075 12931 10930 0 3 0x4000082 thrsleep syz-fuzzer 10930 430534 9274 0 3 0x10008a sigsusp ksh 9274 140900 62659 0 3 0x9a kqread sshd 62659 393959 1 0 3 0x88 kqread sshd 8354 380435 86071 73 3 0x1100090 kqread syslogd 86071 340462 1 0 3 0x100082 netio syslogd 73909 442209 1 0 3 0x100080 kqread resolvd 70683 359161 52729 77 3 0x100092 kqread dhcpleased 61409 225906 52729 77 3 0x100092 kqread dhcpleased 52729 320440 1 0 3 0x80 kqread dhcpleased 44811 485139 0 0 3 0x14200 bored smr 75714 210273 0 0 2 0x14200 zerothread 12895 395579 0 0 3 0x14200 aiodoned aiodoned 43633 247769 0 0 3 0x14200 syncer update 55618 26451 0 0 3 0x14200 cleaner cleaner 84005 29777 0 0 3 0x14200 reaper reaper 7771 450379 0 0 3 0x14200 pgdaemon pagedaemon 96444 98174 0 0 3 0x14200 bored viomb 23309 264943 0 0 3 0x40014200 acpi0 acpi0 95847 239832 0 0 3 0x14200 bored softnet 94010 367826 0 0 3 0x14200 bored softnet 8158 247283 0 0 3 0x14200 bored softnet 35971 122915 0 0 3 0x14200 bored softnet 87704 264474 0 0 3 0x14200 bored systqmp 58366 491530 0 0 3 0x14200 bored systq 18768 235891 0 0 3 0x40014200 bored softclock 14547 145240 0 0 3 0x40014200 idle0 1 380600 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 10200 6429K 7052K 78643K 17344 0 pcb 13 12K 14K 78643K 315 0 rtable 177 9K 13K 78643K 1034 0 ifaddr 154 36K 36K 78643K 596 0 sysctl 2 0K 0K 78643K 2 0 counters 26 17K 17K 78643K 97 0 ioctlops 0 0K 4K 78643K 2928 0 iov 0 0K 32K 78643K 171 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1342 84K 84K 78643K 4504 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 37 0 VM map 2 0K 0K 78643K 2 0 sem 11 1K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 69K 78643K 5376 0 sigio 0 0K 0K 78643K 123 0 proc 61 59K 83K 78643K 887 0 subproc 104 6K 7K 78643K 260 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 151 0 in_multi 74 5K 6K 78643K 324 0 ether_multi 1 0K 0K 78643K 40 0 mrt 1 0K 0K 78643K 43 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 259 1155K 1155K 78643K 259 0 exec 0 0K 2K 78643K 1083 0 pfkey data 0 0K 0K 78643K 1 0 tdb 3 0K 0K 78643K 3 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 298 368K 783K 78643K 28477 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 117 0 NDP 11 0K 2K 78643K 125 0 temp 212 4900K 5158K 78643K 47043 0 kqueue 12 18K 28K 78643K 262 0 SYN cache 2 4688K 4696K 78643K 4 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 179 0 176 1 0 1 1 0 8 0 rtentry 112 274 0 196 4 1 3 4 0 8 0 unpcb 136 1954 0 1939 14 13 1 9 0 8 0 syncache 296 33 0 33 6 6 0 1 0 8 0 tcpqe 32 64 0 64 5 5 0 1 0 8 0 tcpcb 736 933 0 915 27 25 2 9 0 8 0 arp 88 46 0 32 1 0 1 1 0 8 0 ipq 40 5 0 5 4 4 0 1 0 8 0 ipqe 40 13 0 13 4 4 0 1 0 8 0 inpcb 312 4601 0 4574 71 62 9 16 0 8 6 ip6q 72 35 0 35 2 2 0 1 0 8 0 ip6af 40 69 0 69 2 2 0 1 0 8 0 nd6 48 64 0 46 1 0 1 1 0 8 0 pkpcb 40 14 0 14 5 5 0 1 0 8 0 kcovpl 48 20 0 12 1 0 1 1 0 8 0 ppxss 1152 20 0 20 4 4 0 1 0 8 0 pfstscr 40 103 0 73 1 0 1 1 0 8 0 pfosfp 40 6 0 3 1 0 1 1 0 8 0 pfosfpen 112 6 0 0 1 0 1 1 0 8 0 pfrktable 1344 68 0 68 2 2 0 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 160 0 100 1 0 1 1 0 8 0 pfstkey 112 197 0 191 1 0 1 1 0 8 0 pfstate 336 99 0 69 4 1 3 3 0 8 0 pfrule 1360 107 0 100 5 4 1 2 0 8 0 rttmrq 48 10 0 4 1 0 1 1 0 8 0 rttmr 72 13 0 13 4 4 0 1 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 1190 0 850 37 15 22 29 0 8 0 art_table 32 1192 0 851 4 1 3 4 0 8 0 art_node 16 273 0 206 1 0 1 1 0 8 0 sysvmsgpl 40 31 0 23 2 1 1 1 0 8 0 semupl 112 7 0 7 1 1 0 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 9063 0 7615 92 1 91 91 0 8 0 ffsino 240 9063 0 7615 86 0 86 86 0 8 0 nchpl 144 15438 0 13804 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 50724 0 50723 6 5 1 2 0 8 0 vcpupl 1984 84 0 1 11 0 11 11 0 8 0 vmpool 528 513 0 430 6 0 6 6 0 8 0 pfiaddrpl 120 21 0 21 3 3 0 1 0 8 0 kstatmem 264 164 0 142 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 44363 0 44363 17 16 1 8 0 8 1 plimitpl 152 371 0 357 1 0 1 1 0 8 0 sigapl 424 5642 0 5597 6 0 6 6 0 8 0 futexpl 64 39855 0 39851 6 5 1 1 0 8 0 knotepl 120 79983 0 79903 50 39 11 11 0 8 6 kqueuepl 184 522 0 514 2 1 1 2 0 8 0 pipepl 304 515 0 487 12 9 3 8 0 8 0 fdescpl 432 5623 0 5597 4 0 4 4 0 8 0 filepl 120 29836 0 29577 64 52 12 15 0 8 4 lockfpl 104 1103 0 1101 2 1 1 2 0 8 0 lockfspl 48 406 0 404 1 0 1 1 0 8 0 sessionpl 144 36 0 20 1 0 1 1 0 8 0 pgrppl 48 46 0 30 1 0 1 1 0 8 0 ucredpl 96 7077 0 7067 1 0 1 1 0 8 0 zombiepl 144 5598 0 5597 5 4 1 1 0 8 0 processpl 1000 5642 0 5597 6 0 6 6 0 8 0 procpl 672 11956 0 11897 9 3 6 7 0 8 0 sosppl 168 37 0 37 4 4 0 1 0 8 0 sockpl 448 6757 0 6712 135 124 11 30 0 8 6 sockpl: pool(0xffffffff82a90b78:sockpl): free list modified: page 0xfffffd807c050000; item ordinal 0; addr 0xfffffd807c050e28 (p 0xfffffd806aec1000); offset 0x0=0x0 pool(sockpl): free list modified: page 0xfffffd807c050000; item ordinal 0; addr 0xfffffd807c050e28 (p 0xfffffd806aec1000); offset 0x0=0x0 sockpl: pool(0xffffffff82a90b78:sockpl): page inconsistency: page 0xfffffd807c050000; item ordinal 1; addr 0x603fd52986c56ad4 mcl64k 65536 52 0 52 14 13 1 1 0 8 1 mcl16k 16384 35 0 35 9 8 1 1 0 8 1 mcl12k 12288 63 0 63 11 10 1 1 0 8 1 mcl9k 9216 26 0 26 10 10 0 1 0 8 0 mcl8k 8192 76 0 76 23 22 1 1 0 8 1 mcl4k 4096 346 0 346 16 15 1 1 0 8 1 mcl2k2 2112 22 0 22 12 11 1 1 0 8 1 mcl2k 2048 33523 0 33466 67 58 9 19 0 8 1 mtagpl 96 397 0 226 7 1 6 6 0 8 0 mbufpl 256 102321 0 101921 58 28 30 48 0 8 0 bufpl 288 11167 0 4766 458 0 458 458 0 8 0 anonpl 24 1009064 0 998150 156 72 84 92 0 188 0 amapchunkpl 152 99442 0 98942 550 528 22 343 0 158 1 amappl16 200 17314 0 16993 142 124 18 35 0 8 0 amappl15 192 297 0 296 1 0 1 1 0 8 0 amappl14 184 953 0 948 1 0 1 1 0 8 0 amappl13 176 718 0 711 1 0 1 1 0 8 0 amappl12 168 1272 0 1264 1 0 1 1 0 8 0 amappl11 160 371 0 355 1 0 1 1 0 8 0 amappl10 152 976 0 971 1 0 1 1 0 8 0 amappl9 144 809 0 805 1 0 1 1 0 8 0 amappl8 136 1365 0 1279 3 0 3 3 0 8 0 amappl7 128 701 0 690 1 0 1 1 0 8 0 amappl6 120 586 0 568 2 1 1 2 0 8 0 amappl5 112 4519 0 4505 1 0 1 1 0 8 0 amappl4 104 1679 0 1645 3 1 2 2 0 8 1 amappl3 96 16334 0 16285 2 0 2 2 0 8 0 amappl2 88 7366 0 7298 4 2 2 3 0 8 0 amappl1 80 128760 0 128164 32 17 15 19 0 8 1 amappl 88 27432 0 27271 8 3 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 6136 0 6027 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6136 0 6027 1 0 1 1 0 8 0 vmmpekpl 168 34219 0 34161 3 0 3 3 0 8 0 vmmpepl 168 532487 0 530153 220 104 116 116 0 357 6 vmsppl 272 6135 0 6027 8 0 8 8 0 8 0 rwobjpl 24 129156 0 121917 46 1 45 45 0 8 0 pdppl 4096 12278 0 12137 546 399 147 150 0 8 6 pvpl 32 2126524 0 2112144 309 172 137 256 0 265 0 pmappl 216 6135 0 6027 8 1 7 7 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1670 0 783 26 0 26 26 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:437 panic(ffffffff82608c37) at panic+0x161 sys/kern/subr_prf.c:202 pool_do_get(ffffffff82a90b78,9,ffff800026337558) at pool_do_get+0x427 sys/kern/subr_pool.c:740 pool_get(ffffffff82a90b78,9) at pool_get+0xb3 sys/kern/subr_pool.c:584 socreate(2,ffff800026337628,2,0) at socreate+0xa7 soalloc sys/kern/uipc_socket.c:147 [inline] socreate(2,ffff800026337628,2,0) at socreate+0xa7 sys/kern/uipc_socket.c:176 sys_socket(ffff8000216322a0,ffff8000263376b8,ffff800026337710) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff800026337780) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfeae5a8e0c0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82608c37) at panic+0x161 sys/kern/subr_prf.c:202 pool_do_get(ffffffff82a90b78,9,ffff800026337558) at pool_do_get+0x427 sys/kern/subr_pool.c:740 pool_get(ffffffff82a90b78,9) at pool_get+0xb3 sys/kern/subr_pool.c:584 socreate(2,ffff800026337628,2,0) at socreate+0xa7 soalloc sys/kern/uipc_socket.c:147 [inline] socreate(2,ffff800026337628,2,0) at socreate+0xa7 sys/kern/uipc_socket.c:176 sys_socket(ffff8000216322a0,ffff8000263376b8,ffff800026337710) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff800026337780) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfeae5a8e0c0, count: -8