login: kernel: protection fault trap, code=0 Stopped at klist_invalidate+0xd9: movq 0x8(%r14),%r11 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace klist_invalidate(ffff8000012d92a8) at klist_invalidate+0xd9 klist_lock sys/kern/kern_event.c:2317 [inline] klist_invalidate(ffff8000012d92a8) at klist_invalidate+0xd9 sys/kern/kern_event.c:2283 bpfsdetach(ffff8000012a2780) at bpfsdetach+0xff sys/net/bpf.c:1800 bpfdetach(ffff80000129d800) at bpfdetach+0x76 if_detach(ffff80000129d800) at if_detach+0x14f sys/net/if.c:1193 tun_clone_destroy(ffff80000129d800) at tun_clone_destroy+0x2aa sys/net/if_tun.c:338 if_clone_destroy(ffff80002d9df4d0) at if_clone_destroy+0x1d7 sys/net/if.c:1382 sys_ioctl(ffff800036616020,ffff80002d9df6b0,ffff80002d9df600) at sys_ioctl+0x678 syscall(ffff80002d9df6b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4c8986763f0, count: -9 ddb> show registers rdi 0xffff800030dec000 rsi 0xfb8d __ALIGN_SIZE+0xeb8d rbp 0xffff80002d9df330 rbx 0xffffffff833e7d10 cdevsw+0x730 rdx 0xffff800030dec000 rcx 0xfb8c __ALIGN_SIZE+0xeb8c rax 0xffffffff8220baa0 klist_invalidate+0xd0 r8 0x65 r9 0 r10 0x3a80e1498ea1cb4f r11 0x91f528a87ee22df5 r12 0 r13 0xffff8000012d92a8 r14 0x8004060103f20002 r15 0x3 rip 0xffffffff8220baa9 klist_invalidate+0xd9 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002d9df2e0 ss 0x10 klist_invalidate+0xd9: movq 0x8(%r14),%r11 ddb> show proc PROC (syz-executor) tid=343788 pid=71332 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=32, usrpri=57, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800036616a40 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff800036616a40,0xffff800036612a58 process=0xffff8000ffff6ae8 user=0xffff80002d9da000, vmspace=0xfffffd807e43cc78 estcpu=7, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 90274 319055 71073 0 2 0x1 syz-executor 90274 324758 71073 0 3 0x4000080 fsleep syz-executor 67027 454199 45442 0 4 0x82000 syz-executor 67027 391270 45442 0 2 0x4082000 syz-executor 67027 501524 45442 0 4 0x4082000 syz-executor 67027 421542 45442 0 3 0x4002000 suspend syz-executor 45286 150343 14391 0 2 0 syz-executor 45286 382206 14391 0 2 0x4000000 syz-executor 45286 10755 14391 0 3 0x4000080 fsleep syz-executor 45286 233288 14391 0 3 0x4000080 fsleep syz-executor 13711 399628 82537 0 3 0x90 nanoslp syz-executor 13711 471298 82537 0 2 0x4000010 syz-executor 13711 411026 82537 0 3 0x4000010 inode syz-executor 13711 518948 82537 0 3 0x4000090 fsleep syz-executor 71332 268911 49542 0 3 0x3000 suspend syz-executor *71332 343788 49542 0 7 0x4081000 syz-executor 85908 192043 1 0 3 0x100083 ttyin getty 49663 279757 46383 0 3 0x80 nanoslp syz-executor 49663 313901 46383 0 2 0x4000000 syz-executor 49663 425214 46383 0 3 0x4000080 fsleep syz-executor 49663 223854 46383 0 3 0x4000080 fsleep syz-executor 39370 343591 0 0 3 0x14200 bored sosplice 14391 304556 77896 0 3 0x82 nanoslp syz-executor 71073 96060 77896 0 3 0x82 nanoslp syz-executor 46383 458498 77896 0 3 0x82 nanoslp syz-executor 49542 375411 77896 0 3 0x82 nanoslp syz-executor 87923 43746 77896 0 2 0x2 syz-executor 86862 261625 77896 0 2 0x2 syz-executor 82537 465161 77896 0 3 0x82 nanoslp syz-executor 45442 323666 77896 0 3 0x82 nanoslp syz-executor 77896 266152 28062 0 3 0x82 kqread syz-executor 28062 275891 66416 0 3 0x10008a sigsusp ksh 66416 49380 75351 0 3 0x98 kqread sshd-session 75351 480625 18241 0 3 0x92 kqread sshd-session 18241 439599 1 0 3 0x88 kqread sshd 72802 178148 43560 73 3 0x1100090 kqread syslogd 43560 417726 1 0 3 0x100082 sbwait syslogd 68957 469568 1 0 3 0x100080 kqread resolvd 98565 176645 46353 77 3 0x100092 kqread dhcpleased 9111 490319 46353 77 3 0x100092 kqread dhcpleased 46353 321675 1 0 3 0x80 kqread dhcpleased 6248 7911 0 0 3 0x14200 bored smr 6831 251660 0 0 2 0x14200 zerothread 58533 290065 0 0 3 0x14200 aiodoned aiodoned 24888 208949 0 0 3 0x14200 syncer update 23027 265378 0 0 3 0x14200 cleaner cleaner 35331 273230 0 0 3 0x14200 reaper reaper 55572 415212 0 0 3 0x14200 pgdaemon pagedaemon 545 309917 0 0 3 0x14200 bored viomb 71580 223522 0 0 3 0x40014200 acpi0 acpi0 1020 456155 0 0 3 0x14200 bored softnet3 64070 301501 0 0 3 0x14200 bored softnet2 7551 253039 0 0 3 0x14200 bored softnet1 91912 39031 0 0 3 0x14200 bored softnet0 81166 217992 0 0 3 0x14200 bored systqmp 87278 380178 0 0 3 0x14200 bored systq 34921 268857 0 0 3 0x40014200 tmoslp softclock 77233 99326 0 0 3 0x40014200 idle0 1 10630 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 10192 11117K 11369K 166960K 11513 0 pcb 18 15K 17K 166960K 82 0 rtable 176 4K 6K 166960K 435 0 pf 29 12K 21K 166960K 49 0 ifaddr 36 6K 7K 166960K 54 0 ifgroup 46 2K 2K 166960K 65 0 sysctl 2 0K 0K 166960K 2 0 counters 29 17K 17K 166960K 36 0 ioctlops 0 0K 4K 166960K 53 0 iov 0 0K 16K 166960K 26 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1431 90K 91K 166960K 1608 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 97K 166960K 364 0 sigio 0 0K 0K 166960K 8 0 proc 60 59K 116K 166960K 511 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 89 0 in_multi 81 6K 7K 166960K 108 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 383 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 225 72K 76K 166960K 4922 0 UVM aobj 10 2K 2K 166960K 13 0 pinsyscall 37 74K 98K 166960K 1396 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 10 0K 1K 166960K 35 0 temp 40 6807K 6873K 166960K 7649 0 kqueue 13 20K 28K 166960K 60 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 154 0 151 4 1 3 3 0 8 2 rtentry 112 115 0 34 4 0 4 4 0 8 0 unpcb 144 278 0 260 4 3 1 4 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 50 0 45 1 0 1 1 0 8 0 arp 88 18 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 336 363 0 354 12 2 10 12 0 8 8 nd6 104 27 0 8 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 5 0 5 2 1 1 1 0 8 1 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 344 1 0 0 1 0 1 1 0 8 0 pfrule 1344 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 488 0 129 29 2 27 29 0 8 1 art_table 32 489 0 129 4 0 4 4 0 8 0 art_node 16 114 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 semapl 112 5 0 0 1 0 1 1 0 8 0 shmpl 112 10 0 3 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1952 0 457 94 0 94 94 0 8 0 ffsino 240 1952 0 457 89 0 89 89 0 8 0 nchpl 144 2465 0 787 63 0 63 63 0 8 0 uvmvnodes 80 2221 0 0 46 0 46 46 0 8 0 vnodes 216 2221 0 0 124 0 124 124 0 8 0 namei 1024 7758 0 7757 2 1 1 2 0 8 0 kstatmem 264 34 0 14 2 0 2 2 0 8 0 scxspl 216 7127 0 7127 10 2 8 8 1 8 8 plimitpl 152 58 0 41 1 0 1 1 0 8 0 sigapl 424 647 0 602 7 1 6 7 0 8 0 futexpl 64 3506 0 3500 2 1 1 1 0 8 0 knotepl 120 12447 0 12399 17 8 9 10 0 8 7 kqueuepl 184 109 0 100 1 0 1 1 0 8 0 pipepl 288 125 0 97 4 1 3 3 0 8 0 fdescpl 432 630 0 602 5 1 4 5 0 8 0 filepl 120 2949 0 2696 17 3 14 14 0 8 5 lockfpl 104 61 0 58 1 0 1 1 0 8 0 lockfspl 48 29 0 26 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 38 0 22 1 0 1 1 0 8 0 ucredpl 104 312 0 300 1 0 1 1 0 8 0 zombiepl 144 648 0 647 1 0 1 1 0 8 0 processpl 1096 647 0 602 4 0 4 4 0 8 0 procpl 648 1011 0 952 6 0 6 6 0 8 0 sosppl 168 3 0 3 1 1 0 1 0 8 0 sockpl 504 796 0 766 37 20 17 29 0 8 12 mcl64k 65536 5 0 5 1 1 0 1 0 8 0 mcl8k 8192 11 0 11 1 1 0 1 0 8 0 mcl4k 4096 2855 0 2806 18 11 7 18 0 8 0 mcl2k 2048 349 0 344 3 2 1 3 0 8 0 mtagpl 96 16 0 9 1 0 1 1 0 8 0 mbufpl 256 7105 0 6975 19 6 13 19 0 8 1 bufpl 280 2479 0 96 171 0 171 171 0 8 0 anonpl 24 198634 0 195422 66 21 45 45 0 187 17 amapchunkpl 152 17169 0 16681 34 12 22 32 0 158 0 amappl16 200 5466 0 5441 26 11 15 15 0 8 10 amappl15 192 18 0 18 1 1 0 1 0 8 0 amappl14 184 119 0 109 1 0 1 1 0 8 0 amappl13 176 13 0 13 1 1 0 1 0 8 0 amappl12 168 1252 0 1224 3 1 2 3 0 8 0 amappl11 160 52 0 42 1 0 1 1 0 8 0 amappl10 152 15 0 15 1 1 0 1 0 8 0 amappl9 144 145 0 145 1 1 0 1 0 8 0 amappl8 136 25 0 24 1 0 1 1 0 8 0 amappl7 128 114 0 104 1 0 1 1 0 8 0 amappl6 120 162 0 161 1 0 1 1 0 8 0 amappl5 112 129 0 121 1 0 1 1 0 8 0 amappl4 104 292 0 276 1 0 1 1 0 8 0 amappl3 96 2917 0 2824 3 0 3 3 0 8 0 amappl2 88 902 0 827 2 0 2 2 0 8 0 amappl1 80 8233 0 7735 13 2 11 13 0 8 0 amappl 88 4550 0 4379 5 0 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 12 0 3 1 0 1 1 0 8 0 uaddrrnd 24 630 0 602 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 630 0 602 1 0 1 1 0 8 0 vmmpekpl 168 6372 0 6335 2 0 2 2 0 8 0 vmmpepl 168 48095 0 46416 98 10 88 88 0 357 5 vmsppl 352 629 0 602 4 1 3 4 0 8 0 rwobjpl 24 20641 0 17570 20 0 20 20 0 8 0 pdppl 4096 1267 0 1204 99 32 67 83 0 8 4 pvpl 32 370042 0 361422 140 28 112 112 0 265 23 pmappl 216 629 0 602 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 417 0 82 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace klist_invalidate(ffff8000012d92a8) at klist_invalidate+0xd9 klist_lock sys/kern/kern_event.c:2317 [inline] klist_invalidate(ffff8000012d92a8) at klist_invalidate+0xd9 sys/kern/kern_event.c:2283 bpfsdetach(ffff8000012a2780) at bpfsdetach+0xff sys/net/bpf.c:1800 bpfdetach(ffff80000129d800) at bpfdetach+0x76 if_detach(ffff80000129d800) at if_detach+0x14f sys/net/if.c:1193 tun_clone_destroy(ffff80000129d800) at tun_clone_destroy+0x2aa sys/net/if_tun.c:338 if_clone_destroy(ffff80002d9df4d0) at if_clone_destroy+0x1d7 sys/net/if.c:1382 sys_ioctl(ffff800036616020,ffff80002d9df6b0,ffff80002d9df600) at sys_ioctl+0x678 syscall(ffff80002d9df6b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4c8986763f0, count: -9 ddb> machine ddbcpu 1 No such command ddb> trace klist_invalidate(ffff8000012d92a8) at klist_invalidate+0xd9 klist_lock sys/kern/kern_event.c:2317 [inline] klist_invalidate(ffff8000012d92a8) at klist_invalidate+0xd9 sys/kern/kern_event.c:2283 bpfsdetach(ffff8000012a2780) at bpfsdetach+0xff sys/net/bpf.c:1800 bpfdetach(ffff80000129d800) at bpfdetach+0x76 if_detach(ffff80000129d800) at if_detach+0x14f sys/net/if.c:1193 tun_clone_destroy(ffff80000129d800) at tun_clone_destroy+0x2aa sys/net/if_tun.c:338 if_clone_destroy(ffff80002d9df4d0) at if_clone_destroy+0x1d7 sys/net/if.c:1382 sys_ioctl(ffff800036616020,ffff80002d9df6b0,ffff80002d9df600) at sys_ioctl+0x678 syscall(ffff80002d9df6b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4c8986763f0, count: -9