uvm_fault(0xfffffd806b7e7338, 0x1813, 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(0xfffffd806b7e7338, 0x1813, 0, 1) -> e pool_do_put(ffffffff82543700,fffffd8056747900) at pool_do_put+0x12e sys/kern/subr_pool.c:844 end trace frame: 0xffff80001e450030, count: 0 ddb> trace pool_do_put(ffffffff82543700,fffffd8056747900) at pool_do_put+0x12e sys/kern/subr_pool.c:844 pool_put(ffffffff82543700,fffffd8056747900) at pool_put+0x4b sys/kern/subr_pool.c:802 m_free(fffffd8056747900) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff800000a4ab00,800100,ffff800000a4ab40,0) at rt_ifa_del+0x436 sys/net/route.c:1201 in6_unlink_ifa(ffff800000a4ab00,ffff8000009f6000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff8000009f6000,ffff80001e450590,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001e450590,ffff8000009f6000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805d8f1d88,8080691a,ffff80001e450590,ffff80001d437b40) at ifioctl+0xe60 sys/net/if.c:2291 sys_ioctl(ffff80001d437b40,ffff80001e4506a8,ffff80001e4506f0) at sys_ioctl+0x5b9 syscall(ffff80001e450770) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf25a21f0e50, count: -11 ddb> show registers rdi 0xffffffff81d7c9d5 pool_do_put+0x125 rsi 0x13d rbp 0xffff80001e44ffe0 rbx 0x180b __ALIGN_SIZE+0x80b rdx 0x13e rcx 0xffff80001f649000 rax 0xffff80001f649000 r8 0x4 r9 0x5 r10 0xfcd180bf315be38b r11 0xb00f9914c2319546 r12 0xfffffd8056747900 r13 0x92ae384aadac180b r14 0xffffffff82543700 mbpool r15 0xfffffd805ce97718 rip 0xffffffff81d7c9de pool_do_put+0x12e cs 0x8 rflags 0x10296 __ALIGN_SIZE+0xf296 rsp 0xffff80001e44ff30 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=239904 stat=onproc flags process=0 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff80001d4378c8,0xffffffff82591108 process=0xffff8000ffff77e8 user=0xffff80001e44b000, vmspace=0xfffffd806b7e7338 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 34681 43084 60176 0 2 0 syz-executor.0 *34681 239904 60176 0 7 0x4000000 syz-executor.0 70634 5338 0 0 3 0x14200 bored sosplice 60176 423270 90286 0 3 0x82 nanosleep syz-executor.0 26669 276862 90286 0 3 0x82 nanosleep syz-executor.1 90286 89070 53297 0 3 0x82 thrsleep syz-fuzzer 90286 328026 53297 0 3 0x4000082 thrsleep syz-fuzzer 90286 491831 53297 0 3 0x4000082 thrsleep syz-fuzzer 90286 11877 53297 0 3 0x4000082 thrsleep syz-fuzzer 90286 520207 53297 0 3 0x4000082 kqread syz-fuzzer 90286 485293 53297 0 3 0x4000082 thrsleep syz-fuzzer 90286 473555 53297 0 3 0x4000082 thrsleep syz-fuzzer 90286 251994 53297 0 3 0x4000082 thrsleep syz-fuzzer 53297 75361 25197 0 3 0x10008a pause ksh 25197 402857 34282 0 3 0x92 select sshd 734 349578 1 0 3 0x100083 ttyin getty 34282 4021 1 0 3 0x80 select sshd 26067 292359 95958 73 3 0x100090 kqread syslogd 95958 475446 1 0 3 0x100082 netio syslogd 85743 507307 1 77 3 0x100090 poll dhclient 67983 225175 1 0 3 0x80 poll dhclient 58371 519705 0 0 2 0x14200 zerothread 16608 41610 0 0 3 0x14200 aiodoned aiodoned 22363 154562 0 0 3 0x14200 syncer update 90405 294431 0 0 3 0x14200 cleaner cleaner 59126 364615 0 0 3 0x14200 reaper reaper 29676 66312 0 0 3 0x14200 pgdaemon pagedaemon 20216 367139 0 0 3 0x14200 bored crynlk 64875 110698 0 0 3 0x14200 bored crypto 81388 442236 0 0 3 0x40014200 acpi0 acpi0 78731 314788 0 0 3 0x14200 bored softnet 22946 174216 0 0 3 0x14200 bored systqmp 31122 28904 0 0 3 0x14200 bored systq 2997 5343 0 0 3 0x40014200 bored softclock 1267 456902 0 0 3 0x40014200 idle0 30668 343197 0 0 3 0x14200 bored smr 1 97567 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 9481 6461K 6982K 78643K 10850 0 pcb 13 10K 12K 78643K 52 0 rtable 114 3K 4K 78643K 235 0 ifaddr 58 13K 13K 78643K 76 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 30 0 iov 0 0K 16K 78643K 44 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1312 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 38 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 154 0 sigio 0 0K 0K 78643K 4 0 proc 48 38K 54K 78643K 377 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 24 0 in_multi 47 2K 2K 78643K 47 0 ether_multi 1 0K 0K 78643K 4 0 mrt 0 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 36 159K 159K 78643K 36 0 exec 0 0K 1K 78643K 195 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 119 86K 91K 78643K 1263 0 UVM aobj 10 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 30 0 NDP 8 0K 0K 78643K 14 0 temp 117 3026K 3094K 78643K 5416 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 8 0 0 1 0 1 1 0 8 0 rtpcb 80 21 0 19 1 0 1 1 0 8 0 rtentry 112 51 0 4 2 0 2 2 0 8 0 unpcb 120 108 0 100 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 109 0 109 1 1 0 1 0 8 0 tcpcb 544 290 0 286 15 8 7 15 0 8 6 ipq 40 3 0 3 1 0 1 1 0 8 1 ipqe 40 49 0 49 1 0 1 1 0 8 1 inpcb 280 439 0 429 9 2 7 9 0 8 6 rttmr 72 2 0 2 1 0 1 1 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 ppxss 1128 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 226 0 6 15 0 15 15 0 8 1 art_table 32 227 0 6 2 0 2 2 0 8 0 art_node 16 50 0 8 1 0 1 1 0 8 0 sysvmsgpl 40 57 0 29 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 36 0 26 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1604 0 205 46 0 46 46 0 8 0 ffsino 240 1604 0 205 83 0 83 83 0 8 0 nchpl 144 2080 0 465 61 0 61 61 0 8 1 uvmvnodes 72 1719 0 0 32 0 32 32 0 8 0 vnodes 208 1719 0 0 91 0 91 91 0 8 0 namei 1024 5316 0 5316 1 0 1 1 0 8 1 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 528 8 0 0 1 0 1 1 0 8 0 scxspl 192 5616 0 5616 1 0 1 1 0 8 1 plimitpl 152 20 0 13 1 0 1 1 0 8 0 sigapl 432 325 0 312 2 0 2 2 0 8 0 futexpl 56 4505 0 4505 1 0 1 1 0 8 1 knotepl 112 66 0 47 1 0 1 1 0 8 0 kqueuepl 104 177 0 175 4 2 2 4 0 8 1 pipepl 128 210 0 191 1 0 1 1 0 8 0 fdescpl 424 326 0 312 2 0 2 2 0 8 0 filepl 120 2417 0 2321 11 2 9 11 0 8 6 lockfpl 104 56 0 55 1 0 1 1 0 8 0 lockfspl 48 19 0 18 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 110 0 103 1 0 1 1 0 8 0 zombiepl 144 312 0 311 1 0 1 1 0 8 0 processpl 872 341 0 311 4 0 4 4 0 8 0 procpl 632 533 0 495 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 384 572 0 554 14 6 8 14 0 8 6 mcl64k 65536 9 0 9 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 22 0 22 2 1 1 1 0 8 1 mcl2k 2048 69735 0 69686 25 15 10 20 0 8 3 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 111074 0 110959 28 15 13 24 0 8 4 mbufpl: pool(0xffffffff82543700:mbufpl): free list modified: page 0xfffffd8056747000; item ordinal 0; addr 0xfffffd8056747a00 (p 0xfffffd805ce97000); offset 0x0=0x0 mbufpl: pool(0xffffffff82543700:mbufpl): page inconsistency: page 0xfffffd8056747000; item ordinal 1; addr 0x180b bufpl 280 6430 0 1327 365 0 365 365 0 8 0 anonpl 16 70636 0 51936 93 1 92 92 0 107 15 amapchunkpl 152 1877 0 1726 11 0 11 11 0 158 4 amappl16 192 2781 0 1756 72 8 64 64 0 8 12 amappl15 184 111 0 105 1 0 1 1 0 8 0 amappl14 176 26 0 23 1 0 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 6 0 5 1 0 1 1 0 8 0 amappl11 152 106 0 94 1 0 1 1 0 8 0 amappl10 144 17 0 14 1 0 1 1 0 8 0 amappl9 136 555 0 551 1 0 1 1 0 8 0 amappl8 128 118 0 94 1 0 1 1 0 8 0 amappl7 120 98 0 86 1 0 1 1 0 8 0 amappl6 112 119 0 108 1 0 1 1 0 8 0 amappl5 104 156 0 144 1 0 1 1 0 8 0 amappl4 96 536 0 509 1 0 1 1 0 8 0 amappl3 88 118 0 111 1 0 1 1 0 8 0 amappl2 80 1892 0 1822 3 1 2 3 0 8 0 amappl1 72 15554 0 15133 27 18 9 20 0 8 0 amappl 80 775 0 728 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 334 0 312 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 334 0 312 1 0 1 1 0 8 0 vmmpekpl 168 6171 0 6147 2 0 2 2 0 8 0 vmmpepl 168 48356 0 46220 133 12 121 126 0 357 24 vmsppl 272 333 0 312 2 0 2 2 0 8 0 pdppl 4096 674 0 632 7 1 6 6 0 8 0 pvpl 32 179342 0 157647 217 0 217 217 0 265 40 pmappl 200 333 0 312 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 187 0 42 5 0 5 5 0 8 0