panic: pool_cachpe_aniitec:m_ mkaerginecl_c dheicakg:no mstbuifpcl acsspue rftiroeen "l!i_kste rmnoedli_flioecd:k _hietledm ()a"dd fra i0xleffd:f fffdil8e0 7"1d/sby46z0k0+al16le r0/xm0!an=0agxe6r4s27/am4ubclatidcof2r8ef/dke1r n Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 360714 73354 0 0 0x4000000 0 syz-executor.0 *444974 87138 0 0x14000 0x200 1 softnet db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821cf9a6) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff826160b8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff826160b8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff826160b8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8063a1b400,b00,cc,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8063a1b400,b00,cc,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000a04760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020a4f878,ffff800020a4f884,6,2) at tcp_input+0x2353 ip_deliver(ffff800020a4f878,ffff800020a4f884,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020a4f878,ffff800020a4f884,ffff800020a28000,0) at ip_ours+0x412 ip_input_if(ffff800020a4f878,ffff800020a4f884,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd806d1f1900) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd806d1f1900,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020a4f9a8) at if_input_process+0xfb if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017b2a8,ffff800020a4f9a8) at if_input_process+0xfb sys/net/if.c:943 ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646 end trace frame: 0xffff800020a4fa60, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd8071db4600+16 0x0!=0x6427a4bcadf28fd1 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821cf9a6) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff826160b8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff826160b8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff826160b8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copym(fffffd8063a1b400,b00,cc,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copym(fffffd8063a1b400,b00,cc,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667 tcp_output(ffff800000a04760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_input(ffff800020a4f878,ffff800020a4f884,6,2) at tcp_input+0x2353 ip_deliver(ffff800020a4f878,ffff800020a4f884,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668 ip_ours(ffff800020a4f878,ffff800020a4f884,ffff800020a28000,0) at ip_ours+0x412 ip_input_if(ffff800020a4f878,ffff800020a4f884,4,0,ffff80000017b2a8) at ip_input_if+0x6ce ipv4_input(ffff80000017b2a8,fffffd806d1f1900) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017b2a8,fffffd806d1f1900,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017b2a8,ffff800020a4f9a8) at if_input_process+0xfb if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017b2a8,ffff800020a4f9a8) at if_input_process+0xfb sys/net/if.c:943 ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: -15 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020a4f110 rbx 0xffff800020a4f1c0 rdx 0xffff800020a28000 rcx 0 rax 0 r8 0xffffffff8165436f kprintf+0x16f r9 0x1 r10 0x25 r11 0x94167ee4b57882c1 r12 0x3000000008 r13 0xffff800020a4f120 r14 0x100 r15 0x1 rip 0xffffffff81e17a48 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020a4f100 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (softnet) pid=444974 stat=onproc flags process=14000 proc=200 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020a28270,0xffff800020a284f0 process=0xffff800020a2b680 user=0xffff800020a4a000, vmspace=0xffffffff82614658 estcpu=1, cpticks=3, pctcpu=0.12 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 73354 366620 86979 0 3 0x80 fsleep syz-executor.0 73354 360714 86979 0 7 0x4000000 syz-executor.0 27944 455864 0 0 3 0x14200 bored sosplice 99920 262166 9848 0 2 0x2 syz-executor.1 86979 144797 9848 0 2 0x482 syz-executor.0 9848 121158 62151 0 3 0x82 kqread syz-fuzzer 9848 289954 62151 0 2 0x4000482 syz-fuzzer 9848 265529 62151 0 3 0x4000082 thrsleep syz-fuzzer 9848 410653 62151 0 3 0x4000082 thrsleep syz-fuzzer 9848 78615 62151 0 3 0x4000082 thrsleep syz-fuzzer 9848 344261 62151 0 3 0x4000082 thrsleep syz-fuzzer 9848 313417 62151 0 2 0x4000482 syz-fuzzer 9848 70318 62151 0 3 0x4000082 thrsleep syz-fuzzer 9848 277944 62151 0 3 0x4000082 thrsleep syz-fuzzer 9848 441700 62151 0 3 0x4000082 thrsleep syz-fuzzer 62151 234520 27831 0 3 0x10008a pause ksh 27831 26210 92777 0 3 0x92 select sshd 41025 220033 1 0 3 0x100083 ttyin getty 92777 506289 1 0 3 0x80 select sshd 72549 224206 34815 74 3 0x100092 bpf pflogd 34815 298829 1 0 3 0x80 netio pflogd 8677 321089 53404 73 3 0x100090 kqread syslogd 53404 310002 1 0 3 0x100082 netio syslogd 49864 16013 1 77 3 0x100090 poll dhclient 42313 285650 1 0 3 0x80 poll dhclient 95943 104652 0 0 2 0x14200 zerothread 53407 316058 0 0 3 0x14200 aiodoned aiodoned 36786 35397 0 0 3 0x14200 syncer update 28472 144413 0 0 3 0x14200 cleaner cleaner 70428 94783 0 0 3 0x14200 reaper reaper 47608 424323 0 0 3 0x14200 pgdaemon pagedaemon 65085 252677 0 0 3 0x14200 bored crynlk 80347 445604 0 0 3 0x14200 bored crypto 91066 509109 0 0 3 0x40014200 acpi0 acpi0 70318 423567 0 0 3 0x40014200 idle1 *87138 444974 0 0 7 0x14200 softnet 52483 325555 0 0 3 0x14200 bored systqmp 67689 220139 0 0 3 0x14200 bored systq 64976 11437 0 0 3 0x40014200 bored softclock 95782 325689 0 0 3 0x40014200 idle0 61958 507230 0 0 3 0x14200 bored smr 1 6038 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 73354 (syz-executor.0) thread 0xffff800020ae7608 (366620) shared rwlock vmmaplk r = 0 (0xfffffd807efff748) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1448 #2 uvm_fault+0x7f sys/uvm/uvm_fault.c:524 #3 pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 #4 usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 #5 recall_trap+0x8 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82619670) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 #2 usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 #3 recall_trap+0x8 Process 87138 (softnet) thread 0xffff800020a28000 (444974) shared rwlock netlock r = 0 (0xffffffff824c2118) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 if_input_process+0x84 sys/net/if.c:941 #2 ifiq_process+0x80 sys/net/ifq.c:646 #3 taskq_thread+0x9c sys/kern/kern_task.c:369 #4 proc_trampoline+0x1c shared rwlock softnet r = 0 (0xffff80000002b0e0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 taskq_thread+0x8f sys/kern/kern_task.c:368 #2 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9506 6418K 7196K 78643K 11257 0 pcb 13 9K 9K 78643K 117 0 rtable 110 4K 4K 78643K 301 0 ifaddr 78 17K 17K 78643K 126 0 counters 43 33K 34K 78643K 59 0 ioctlops 0 0K 4K 78643K 1485 0 iov 0 0K 16K 78643K 26 0 mount 1 1K 1K 78643K 1 0 vnodes 1231 77K 78K 78643K 1392 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 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 59 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 13K 25K 78643K 266 0 sigio 0 0K 0K 78643K 15 0 proc 62 63K 95K 78643K 457 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 58 0 in_multi 82 3K 4K 78643K 142 0 ether_multi 1 0K 0K 78643K 21 0 mrt 0 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 227 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 118 54K 70K 78643K 1777 0 UVM aobj 24 4K 4K 78643K 30 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 66 0 NDP 10 0K 0K 78643K 23 0 temp 121 3021K 3086K 78643K 11504 0 kqueue 3 4K 20K 78643K 27 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 59 0 14 2 0 2 2 0 8 0 unpcb 120 231 0 221 1 0 1 1 0 8 0 syncache 264 8 0 8 2 2 0 1 0 8 0 tcpqe 32 456 0 456 1 1 0 1 0 8 0 tcpcb 544 186 0 182 1 0 1 1 0 8 0 inpcb 280 914 0 907 5 2 3 3 0 8 2 rttmr 72 2 0 2 2 1 1 1 0 8 1 nd6 48 7 0 3 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 6 0 6 2 2 0 1 0 482 0 pffrnode 88 6 0 6 2 2 0 1 0 8 0 pffrent 40 184 0 184 2 2 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 57 0 20 1 0 1 1 0 8 0 pfstkey 112 57 0 20 2 0 2 2 0 8 0 pfstate 328 57 0 20 4 0 4 4 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 234 0 42 14 1 13 13 0 8 0 art_table 32 236 0 42 2 0 2 2 0 8 0 art_node 16 58 0 17 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 18 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 55 0 45 1 0 1 1 0 8 0 shmpl 112 28 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1763 0 359 46 0 46 46 0 8 0 ffsino 272 1763 0 359 95 1 94 95 0 8 0 nchpl 144 2334 0 729 61 1 60 61 0 8 0 uvmvnodes 72 1940 0 0 36 0 36 36 0 8 0 vnodes 208 1940 0 0 103 0 103 103 0 8 0 namei 1024 6724 0 6724 1 0 1 1 0 8 1 percpumem 16 40 0 8 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6937 0 6937 10 9 1 7 0 8 1 plimitpl 152 31 0 23 1 0 1 1 0 8 0 sigapl 432 465 0 450 3 1 2 3 0 8 0 futexpl 56 9063 0 9062 1 0 1 1 0 8 0 knotepl 112 83 0 64 1 0 1 1 0 8 0 kqueuepl 144 61 0 59 1 0 1 1 0 8 0 pipelkpl 48 154 0 144 1 0 1 1 0 8 0 pipepl 120 308 0 289 1 0 1 1 0 8 0 fdescpl 496 466 0 450 3 0 3 3 0 8 0 filepl 152 3804 0 3703 8 2 6 7 0 8 2 lockfpl 104 60 0 59 1 0 1 1 0 8 0 lockfspl 48 23 0 22 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 236 0 227 1 0 1 1 0 8 0 zombiepl 144 450 0 450 1 0 1 1 0 8 1 processpl 960 482 0 450 5 0 5 5 0 8 0 procpl 624 1012 0 970 4 0 4 4 0 8 0 sosppl 128 27 0 27 3 2 1 1 0 8 1 sockpl 400 1202 0 1183 9 4 5 6 0 8 3 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 214 0 0 26 0 26 26 0 8 0 mtagpl 80 45 0 0 1 0 1 1 0 8 0 mbufpl 256 413 0 0 25 0 25 25 0 8 0 bufpl 280 4599 0 174 317 0 317 317 0 8 0 anonpl 16 55722 0 38756 71 1 70 70 0 125 0 amapchunkpl 152 2639 0 2505 22 10 12 20 0 158 6 amappl16 192 2089 0 1160 49 1 48 48 0 8 1 amappl15 184 2 0 1 2 1 1 1 0 8 0 amappl14 176 7 0 5 2 1 1 1 0 8 0 amappl13 168 259 0 255 1 0 1 1 0 8 0 amappl12 160 7 0 4 1 0 1 1 0 8 0 amappl11 152 73 0 54 1 0 1 1 0 8 0 amappl10 144 17 0 12 1 0 1 1 0 8 0 amappl9 136 403 0 398 1 0 1 1 0 8 0 amappl8 128 320 0 296 1 0 1 1 0 8 0 amappl7 120 117 0 107 1 0 1 1 0 8 0 amappl6 112 24 0 19 1 0 1 1 0 8 0 amappl5 104 144 0 128 1 0 1 1 0 8 0 amappl4 96 966 0 931 2 1 1 2 0 8 0 amappl3 88 121 0 115 1 0 1 1 0 8 0 amappl2 80 2787 0 2718 3 1 2 3 0 8 0 amappl1 72 19797 0 19365 26 16 10 20 0 8 0 amappl 80 1258 0 1213 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 29 0 6 1 0 1 1 0 8 0 uaddrrnd 24 468 0 450 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 468 0 450 1 0 1 1 0 8 0 vmmpekpl 168 7620 0 7585 2 0 2 2 0 8 0 vmmpepl 168 63799 0 61729 119 22 97 112 0 357 6 vmsppl 368 467 0 450 2 0 2 2 0 8 0 pdppl 4096 943 0 902 6 0 6 6 0 8 0 pvpl 32 184745 0 164625 175 4 171 171 0 265 6 pmappl 232 467 0 450 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 197 0 9 6 0 6 6 0 8 0