login: kernel: protection fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace in_delmulti(bffffffedffffeff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000a1c600) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000a10800) at in_ifdetach+0x74 sys/netinet/in.c:969 if_setrdomain(ffff800000a10800,a) at if_setrdomain+0x19a sys/net/if.c:1888 ifioctl(fffffd806f66e480,8020699f,ffff800021b6bbe0,ffff800020ac0780) at ifioctl+0x16ad sys/net/if.c:2148 sys_ioctl(ffff800020ac0780,ffff800021b6bcf8,ffff800021b6bd40) at sys_ioctl+0x5b9 syscall(ffff800021b6bdc0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800021b6bdc0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3ae92c72460, count: -8 ddb{1}> show registers rdi 0xffffffff81eee24d in_delmulti+0x8d rsi 0x1d090 acpi_pdirpa+0x8ef8 rbp 0xffff800021b6ba00 rbx 0 rdx 0x1d091 acpi_pdirpa+0x8ef9 rcx 0xffff800022d7c000 rax 0xffff800022d7c000 r8 0xffffffff81342423 rt_ifa_purge+0x153 r9 0x5 r10 0x2f r11 0x721450fbafeebe98 r12 0 r13 0x3 r14 0xbffffffedffffeff r15 0x1 rip 0xffffffff81eee24d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021b6b9a0 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.1) pid=337688 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ac09f8,0xffffffff82634898 process=0xffff800020aed500 user=0xffff800021b66000, vmspace=0xfffffd807f008b80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 17619 98310 85686 0 7 0 syz-executor.1 *17619 337688 85686 0 7 0x4000000 syz-executor.1 30446 273757 82761 0 3 0x2 biowait syz-executor.0 52661 52446 0 0 3 0x14200 bored sosplice 85686 257721 82761 0 3 0x82 nanosleep syz-executor.1 82761 440197 11529 0 3 0x82 thrsleep syz-fuzzer 82761 502585 11529 0 3 0x4000082 nanosleep syz-fuzzer 82761 249484 11529 0 3 0x4000082 thrsleep syz-fuzzer 82761 346728 11529 0 3 0x4000082 thrsleep syz-fuzzer 82761 513894 11529 0 3 0x4000082 thrsleep syz-fuzzer 82761 37035 11529 0 3 0x4000082 nanosleep syz-fuzzer 82761 436569 11529 0 3 0x4000082 thrsleep syz-fuzzer 82761 407661 11529 0 3 0x4000082 thrsleep syz-fuzzer 82761 508452 11529 0 3 0x4000082 kqread syz-fuzzer 82761 386236 11529 0 3 0x4000082 thrsleep syz-fuzzer 11529 39451 66317 0 3 0x10008a pause ksh 66317 45101 19021 0 3 0x92 select sshd 69617 269827 1 0 3 0x100083 ttyin getty 19021 384247 1 0 3 0x80 select sshd 51571 255345 1406 74 3 0x100092 bpf pflogd 1406 109570 1 0 3 0x80 netio pflogd 80332 242967 44875 73 3 0x100090 kqread syslogd 44875 206247 1 0 3 0x100082 netio syslogd 91246 474572 1 77 2 0x100090 dhclient 81653 423873 1 0 3 0x80 poll dhclient 18410 40481 0 0 3 0x14200 pgzero zerothread 56586 359442 0 0 3 0x14200 aiodoned aiodoned 56845 479050 0 0 3 0x14200 syncer update 57962 301425 0 0 3 0x14200 cleaner cleaner 19718 50635 0 0 3 0x14200 reaper reaper 16653 11251 0 0 3 0x14200 pgdaemon pagedaemon 76661 141657 0 0 3 0x14200 bored crynlk 10862 498873 0 0 3 0x14200 bored crypto 32858 225440 0 0 3 0x40014200 acpi0 acpi0 262 274534 0 0 3 0x40014200 idle1 76958 436984 0 0 3 0x14200 bored softnet 21809 184759 0 0 2 0x14200 systqmp 23197 475871 0 0 3 0x14200 bored systq 25044 61304 0 0 3 0x40014200 bored softclock 86957 406128 0 0 3 0x40014200 idle0 47768 237413 0 0 3 0x14200 bored smr 1 118614 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 17619 (syz-executor.1) thread 0xffff800020ac0780 (337688) exclusive rwlock netlock r = 0 (0xffffffff82495598) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 ifioctl+0x16a0 sys/net/if.c:2148 #2 sys_ioctl+0x5b9 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff826563c0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 Process 30446 (syz-executor.0) thread 0xffff800020a6f640 (273757) exclusive rrwlock inode r = 0 (0xfffffd80653eea30) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:453 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1352 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1164 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:2974 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80653ee2c0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:453 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:571 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:2959 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9542 6554K 6934K 78643K 11261 0 pcb 13 8K 8K 78643K 85 0 rtable 96 4K 4K 78643K 363 0 ifaddr 79 14K 15K 78643K 144 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1482 0 iov 0 0K 16K 78643K 69 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 1450 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 36 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 13K 25K 78643K 286 0 sigio 0 0K 0K 78643K 2 0 proc 60 63K 83K 78643K 494 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 20 0 in_multi 50 2K 3K 78643K 77 0 ether_multi 1 0K 0K 78643K 4 0 mrt 0 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 48 212K 212K 78643K 48 0 exec 0 0K 1K 78643K 233 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 130 71K 72K 78643K 1921 0 UVM aobj 12 2K 2K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 68 0 NDP 14 0K 0K 78643K 30 0 temp 143 3019K 3087K 78643K 7289 0 kqueue 0 0K 0K 78643K 4 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 8 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 49 0 47 1 0 1 1 0 8 0 rtentry 112 65 0 30 2 0 2 2 0 8 0 unpcb 120 215 0 205 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpqe 32 708 0 708 2 2 0 1 0 8 0 tcpcb 544 98 0 94 1 0 1 1 0 8 0 inpcb 280 332 0 324 2 0 2 2 0 8 1 rttmr 72 2 0 1 2 1 1 1 0 8 0 nd6 48 7 0 5 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 8 0 8 2 1 1 1 0 8 1 pffrag 232 6 0 6 1 1 0 1 0 482 0 pffrnode 88 6 0 6 1 1 0 1 0 8 0 pffrent 40 184 0 184 1 1 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 26 0 3 1 0 1 1 0 8 0 pfstkey 112 26 0 3 1 0 1 1 0 8 0 pfstate 328 26 0 3 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 317 0 117 14 0 14 14 0 8 1 art_table 32 318 0 117 2 0 2 2 0 8 0 art_node 16 64 0 28 1 0 1 1 0 8 0 sysvmsgpl 40 66 0 37 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 34 0 24 1 0 1 1 0 8 0 shmpl 112 12 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1805 0 397 46 0 46 46 0 8 0 ffsino 272 1805 0 397 95 0 95 95 0 8 0 nchpl 144 2491 0 885 61 0 61 61 0 8 0 uvmvnodes 72 2024 0 0 37 0 37 37 0 8 0 vnodes 208 2024 0 0 107 0 107 107 0 8 0 namei 1024 6901 0 6900 2 1 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 0 1 0 1 1 0 8 0 scxspl 192 6859 0 6858 10 7 3 7 0 8 2 plimitpl 152 28 0 20 1 0 1 1 0 8 0 sigapl 432 482 0 467 3 1 2 3 0 8 0 futexpl 56 4957 0 4957 1 0 1 1 0 8 1 knotepl 112 158 0 139 2 0 2 2 0 8 1 kqueuepl 104 96 0 94 1 0 1 1 0 8 0 pipepl 160 266 0 247 2 0 2 2 0 8 1 fdescpl 488 483 0 467 3 0 3 3 0 8 0 filepl 152 3295 0 3194 7 1 6 6 0 8 2 lockfpl 104 78 0 77 1 0 1 1 0 8 0 lockfspl 48 28 0 27 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 197 0 188 1 0 1 1 0 8 0 zombiepl 144 467 0 467 2 1 1 1 0 8 1 processpl 896 499 0 467 4 0 4 4 0 8 0 procpl 632 1067 0 1025 6 1 5 5 0 8 1 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 384 598 0 578 7 3 4 5 0 8 2 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 197 0 0 24 0 24 24 0 8 0 mtagpl 80 11 0 0 1 0 1 1 0 8 0 mbufpl 256 405 0 0 25 0 25 25 0 8 0 bufpl 280 6894 0 1340 397 0 397 397 0 8 0 anonpl 16 69049 0 52045 95 1 94 94 0 125 9 amapchunkpl 152 2913 0 2757 13 4 9 12 0 158 2 amappl16 192 2593 0 1500 63 0 63 63 0 8 8 amappl15 184 61 0 57 1 0 1 1 0 8 0 amappl14 176 53 0 50 1 0 1 1 0 8 0 amappl13 168 120 0 118 1 0 1 1 0 8 0 amappl12 160 6 0 4 2 1 1 1 0 8 0 amappl11 152 162 0 146 1 0 1 1 0 8 0 amappl10 144 22 0 13 1 0 1 1 0 8 0 amappl9 136 616 0 613 1 0 1 1 0 8 0 amappl8 128 143 0 113 3 1 2 2 0 8 0 amappl7 120 109 0 96 1 0 1 1 0 8 0 amappl6 112 161 0 155 1 0 1 1 0 8 0 amappl5 104 145 0 130 1 0 1 1 0 8 0 amappl4 96 731 0 700 1 0 1 1 0 8 0 amappl3 88 127 0 120 1 0 1 1 0 8 0 amappl2 80 2950 0 2874 3 1 2 3 0 8 0 amappl1 72 20492 0 20047 25 15 10 20 0 8 0 amappl 80 1349 0 1298 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 13 0 2 1 0 1 1 0 8 0 uaddrrnd 24 489 0 467 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 489 0 467 1 0 1 1 0 8 0 vmmpekpl 168 7567 0 7531 2 0 2 2 0 8 0 vmmpepl 168 67973 0 65688 166 23 143 143 0 357 42 vmsppl 368 488 0 467 3 0 3 3 0 8 1 pdppl 4096 985 0 940 7 1 6 6 0 8 0 pvpl 32 212386 0 192449 218 1 217 217 0 265 25 pmappl 232 488 0 467 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 184 0 5 6 0 6 6 0 8 0