login: uvm_fault(0xfffffd806bc0a220, 0x8ac4, 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(0xfffffd806bc0a220, 0x8ac4, 0, 1) -> e pool_do_put(ffffffff825524e8,fffffd805e34a500) at pool_do_put+0x12e sys/kern/subr_pool.c:836 end trace frame: 0xffff80001d4384e0, count: 0 ddb> trace pool_do_put(ffffffff825524e8,fffffd805e34a500) at pool_do_put+0x12e sys/kern/subr_pool.c:836 pool_put(ffffffff825524e8,fffffd805e34a500) at pool_put+0x4b sys/kern/subr_pool.c:794 m_free(fffffd805e34a500) at m_free+0x119 sys/kern/uipc_mbuf.c:459 rt_ifa_del(ffff800000a54e00,800100,ffff800000a54e40,0) at rt_ifa_del+0x402 sys/net/route.c:1196 in6_unlink_ifa(ffff800000a54e00,ffff800000a02000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_update_ifa(ffff800000a02000,ffff80001d438a40,0) at in6_update_ifa+0x13f7 sys/netinet6/in6.c:875 in6_ioctl_change_ifaddr(8080691a,ffff80001d438a40,ffff800000a02000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd805e555320,8080691a,ffff80001d438a40,ffff80001d349278) at ifioctl+0xe60 sys/net/if.c:2290 sys_ioctl(ffff80001d349278,ffff80001d438b58,ffff80001d438ba0) at sys_ioctl+0x498 syscall(ffff80001d438c20) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x42ad066b700, count: -11 ddb> show registers rdi 0xffffffff81f10055 pool_do_put+0x125 rsi 0x136 rbp 0xffff80001d438490 rbx 0x8abc __ALIGN_SIZE+0x7abc rdx 0x137 rcx 0xffff80001d441000 rax 0xffff80001d441000 r8 0x4 r9 0x5 r10 0xca35cf8211f1157d r11 0x250fb998784a1fc4 r12 0xfffffd805e34a500 r13 0xf7e18fbaf8a8abc r14 0xffffffff825524e8 mbpool r15 0xfffffd806c3c4a80 rip 0xffffffff81f1005e pool_do_put+0x12e cs 0x8 rflags 0x10296 __ALIGN_SIZE+0xf296 rsp 0xffff80001d4383e0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.1) pid=155247 stat=onproc flags process=0 proc=4000000 pri=64, usrpri=64, nice=20 forw=0xffffffffffffffff, list=0xffff80001d349008,0xffffffff82576a00 process=0xffff8000ffffa390 user=0xffff80001d433000, vmspace=0xfffffd806bc0a220 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14854 273575 22459 0 2 0 syz-executor.1 *14854 155247 22459 0 7 0x4000000 syz-executor.1 33470 157187 16007 0 3 0x2 biowait syz-executor.0 22459 424891 16007 0 3 0x82 nanosleep syz-executor.1 16007 489025 1365 0 3 0x82 kqread syz-fuzzer 16007 79431 1365 0 3 0x4000082 nanosleep syz-fuzzer 16007 100840 1365 0 3 0x4000082 thrsleep syz-fuzzer 16007 245813 1365 0 3 0x4000082 thrsleep syz-fuzzer 16007 27680 1365 0 3 0x4000082 thrsleep syz-fuzzer 16007 426839 1365 0 3 0x4000082 thrsleep syz-fuzzer 16007 81063 1365 0 3 0x4000082 thrsleep syz-fuzzer 1365 287116 86489 0 3 0x10008a pause ksh 86489 8042 68792 0 3 0x92 select sshd 28807 448570 1 0 3 0x100083 ttyin getty 68792 323308 1 0 3 0x80 select sshd 50554 101911 95585 73 3 0x100090 kqread syslogd 95585 337335 1 0 3 0x100082 netio syslogd 62549 57830 1 77 3 0x100090 poll dhclient 96321 107078 1 0 3 0x80 poll dhclient 73130 235304 0 0 2 0x14200 zerothread 3970 271709 0 0 3 0x14200 aiodoned aiodoned 74993 503718 0 0 3 0x14200 syncer update 76052 371425 0 0 3 0x14200 cleaner cleaner 58122 404775 0 0 3 0x14200 reaper reaper 31678 179315 0 0 3 0x14200 pgdaemon pagedaemon 51509 408769 0 0 3 0x14200 bored crynlk 77416 199129 0 0 3 0x14200 bored crypto 10008 177931 0 0 3 0x40014200 acpi0 acpi0 6124 363419 0 0 3 0x14200 bored softnet 89618 71120 0 0 3 0x14200 bored systqmp 64836 346792 0 0 3 0x14200 bored systq 92158 128609 0 0 3 0x40014200 bored softclock 45618 409104 0 0 3 0x40014200 idle0 56997 28729 0 0 3 0x14200 bored smr 1 131376 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 9493 6343K 7180K 78643K 11013 0 pcb 13 8K 8K 78643K 43 0 rtable 105 3K 3K 78643K 264 0 ifaddr 67 13K 14K 78643K 94 0 counters 21 16K 16K 78643K 26 0 ioctlops 0 0K 2K 78643K 17 0 iov 0 0K 16K 78643K 54 0 mount 1 1K 1K 78643K 1 0 vnodes 1227 77K 77K 78643K 1341 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 22 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 142 0 proc 50 38K 63K 78643K 366 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 15 0 in_multi 40 2K 2K 78643K 54 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 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 185 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 110 22K 22K 78643K 1206 0 UVM aobj 4 2K 2K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 14 0 NDP 11 0K 0K 78643K 20 0 temp 95 3006K 3074K 78643K 5143 0 kqueue 3 4K 12K 78643K 14 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 68 0 66 1 0 1 1 0 8 0 rtentry 112 49 0 5 2 0 2 2 0 8 0 unpcb 120 121 0 113 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 67 0 67 1 1 0 1 0 8 0 tcpcb 544 42 0 38 1 0 1 1 0 8 0 inpcb 280 132 0 124 2 0 2 2 0 8 1 rttmr 72 4 0 4 1 1 0 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 swfcl 56 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 212 0 0 14 0 14 14 0 8 0 art_table 32 213 0 0 2 0 2 2 0 8 0 art_node 16 48 0 8 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1619 0 219 46 0 46 46 0 8 0 ffsino 240 1619 0 219 83 0 83 83 0 8 0 nchpl 144 2014 0 402 60 0 60 60 0 8 0 uvmvnodes 72 1747 0 0 32 0 32 32 0 8 0 vnodes 208 1747 0 0 92 0 92 92 0 8 0 namei 1024 5133 0 5133 1 0 1 1 0 8 1 scxspl 192 5951 0 5950 1 0 1 1 0 8 0 plimitpl 152 22 0 15 1 0 1 1 0 8 0 sigapl 432 313 0 300 2 0 2 2 0 8 0 futexpl 56 2641 0 2641 1 0 1 1 0 8 1 knotepl 112 72 0 53 1 0 1 1 0 8 0 kqueuepl 104 37 0 35 1 0 1 1 0 8 0 pipelkpl 16 97 0 87 1 0 1 1 0 8 0 pipepl 120 194 0 175 1 0 1 1 0 8 0 fdescpl 432 314 0 300 2 0 2 2 0 8 0 filepl 120 1928 0 1831 4 0 4 4 0 8 1 lockfpl 104 57 0 56 1 0 1 1 0 8 0 lockfspl 48 14 0 13 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 33 0 23 1 0 1 1 0 8 0 ucredpl 96 167 0 160 1 0 1 1 0 8 0 zombiepl 144 300 0 300 1 0 1 1 0 8 1 processpl 896 328 0 300 4 0 4 4 0 8 0 procpl 624 489 0 454 4 0 4 4 0 8 1 sockpl 400 323 0 304 5 1 4 4 0 8 1 mcl64k 65536 23 0 23 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 1 0 1 1 1 0 1 0 8 0 mcl4k 4096 22 0 22 2 1 1 1 0 8 1 mcl2k 2048 64020 0 63982 15 7 8 12 0 8 3 mtagpl 80 14 0 2 2 1 1 1 0 8 0 mbufpl 256 102278 0 102176 9 1 8 8 0 8 0 mbufpl: pool(0xffffffff825524e8:mbufpl): free list modified: page 0xfffffd805e34a000; item ordinal 1; addr 0xfffffd805e34a600 (p 0xfffffd806c3c4000); offset 0x0=0x0 mbufpl: pool(0xffffffff825524e8:mbufpl): page inconsistency: page 0xfffffd805e34a000; item ordinal 2; addr 0x8abc bufpl 280 4288 0 179 294 0 294 294 0 8 0 anonpl 16 45753 0 29947 67 1 66 66 0 107 0 amapchunkpl 152 1559 0 1415 8 1 7 8 0 158 0 amappl16 192 1488 0 599 48 0 48 48 0 8 3 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 134 0 129 1 0 1 1 0 8 0 amappl12 160 7 0 6 1 0 1 1 0 8 0 amappl11 152 45 0 34 1 0 1 1 0 8 0 amappl10 144 10 0 7 1 0 1 1 0 8 0 amappl9 136 562 0 559 1 0 1 1 0 8 0 amappl8 128 108 0 85 1 0 1 1 0 8 0 amappl7 120 92 0 79 1 0 1 1 0 8 0 amappl6 112 55 0 49 1 0 1 1 0 8 0 amappl5 104 135 0 124 1 0 1 1 0 8 0 amappl4 96 469 0 446 1 0 1 1 0 8 0 amappl3 88 227 0 216 1 0 1 1 0 8 0 amappl2 80 1728 0 1658 3 1 2 3 0 8 0 amappl1 72 15334 0 14910 26 16 10 20 0 8 0 amappl 80 729 0 686 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 314 0 300 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 314 0 300 1 0 1 1 0 8 0 vmmpekpl 168 6122 0 6096 2 0 2 2 0 8 0 vmmpepl 168 45192 0 43208 119 8 111 113 0 357 23 vmsppl 272 313 0 300 2 1 1 2 0 8 0 pdppl 4096 634 0 600 6 1 5 6 0 8 0 pvpl 32 150047 0 131265 162 0 162 162 0 265 6 pmappl 200 313 0 300 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 151 0 15 5 0 5 5 0 8 0