uvm_fault(0xfffffd806739bca0, 0x28, 0, 1) -> e kernel: page fault trap, code=0 Stopped at bpfioctl+0xd26: movq 0x28(%rax),%rdi TID PID UID PRFLAGS PFLAGS CPU COMMAND * 73985 47644 0 0 0x4000000 0 syz-executor.7 bpfioctl(21700,20004269,ffff80003782f6c0,3,ffff80002a603d50) at bpfioctl+0xd26 sys/net/bpf.c:901 VOP_IOCTL(fffffd8071e12bd0,20004269,ffff80003782f6c0,3,fffffd807f7d7068,ffff80002a603d50) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067c68080,20004269,ffff80003782f6c0,ffff80002a603d50) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a603d50,ffff80003782f890,ffff80003782f7e0) at sys_ioctl+0x4a5 syscall(ffff80003782f890) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x55a1963d620, count: 9 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806739bca0, 0x28, 0, 1) -> e ddb> trace bpfioctl(21700,20004269,ffff80003782f6c0,3,ffff80002a603d50) at bpfioctl+0xd26 sys/net/bpf.c:901 VOP_IOCTL(fffffd8071e12bd0,20004269,ffff80003782f6c0,3,fffffd807f7d7068,ffff80002a603d50) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067c68080,20004269,ffff80003782f6c0,ffff80002a603d50) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a603d50,ffff80003782f890,ffff80003782f7e0) at sys_ioctl+0x4a5 syscall(ffff80003782f890) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x55a1963d620, count: -6 ddb> show registers rdi 0xffff80002dd1e000 rsi 0x15a rbp 0xffff80003782f4f0 rbx 0 rdx 0xffff80002dd1e000 rcx 0x159 rax 0 r8 0x7f7fffffc000 r9 0 r10 0xb76d72e05bba936 r11 0x9810d8eb62847836 r12 0 r13 0 r14 0xffff800000f52800 r15 0xffff800000f528a0 rip 0xffffffff827d3b76 bpfioctl+0xd26 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003782f480 ss 0x10 bpfioctl+0xd26: movq 0x28(%rax),%rdi ddb> show proc PROC (syz-executor.7) tid=73985 pid=47644 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002db1cab0,0xffff80002a64e580 process=0xffff8000ffff50d8 user=0xffff80003782a000, vmspace=0xfffffd806739bca0 estcpu=34, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98489 189198 52435 0 2 0 syz-executor.4 23120 327274 17850 0 3 0x80 nanoslp syz-executor.5 23120 64638 17850 0 2 0x4000000 syz-executor.5 23120 334527 17850 0 3 0x4000080 fsleep syz-executor.5 6970 318064 18580 0 3 0x80 nanoslp syz-executor.0 6970 280172 18580 0 3 0x4000080 fsleep syz-executor.0 44071 178387 10606 0 2 0 syz-executor.6 44071 119740 10606 0 2 0x4000000 syz-executor.6 44071 229045 10606 0 2 0x4000000 syz-executor.6 44071 487829 10606 0 2 0x4000000 syz-executor.6 23767 185498 5732 0 3 0x80 nanoslp syz-executor.1 23767 65760 5732 0 3 0x4000080 fsleep syz-executor.1 23767 447137 5732 0 2 0x4000000 syz-executor.1 47644 30818 70819 0 3 0x80 nanoslp syz-executor.7 47644 223587 70819 0 2 0x4000000 syz-executor.7 *47644 73985 70819 0 7 0x4000000 syz-executor.7 47644 313500 70819 0 3 0x4000080 fsleep syz-executor.7 96453 368261 29016 0 2 0x2 syz-executor.3 89654 444253 0 0 3 0x14280 nfsidl nfsio 35680 283215 0 0 3 0x14280 nfsidl nfsio 98939 18318 0 0 3 0x14280 nfsidl nfsio 73104 155914 0 0 3 0x14280 nfsidl nfsio 59059 234126 0 0 3 0x14280 nfsidl nfsio 70321 510472 0 0 3 0x14280 nfsidl nfsio 48161 299939 0 0 3 0x14280 nfsidl nfsio 69564 478513 0 0 3 0x14280 nfsidl nfsio 34768 523180 0 0 3 0x14280 nfsidl nfsio 38403 13256 0 0 3 0x14280 nfsidl nfsio 76043 276864 0 0 3 0x14280 nfsidl nfsio 79331 346873 0 0 3 0x14280 nfsidl nfsio 87208 150630 0 0 3 0x14280 nfsidl nfsio 50261 379940 0 0 3 0x14280 nfsidl nfsio 85378 167720 0 0 3 0x14280 nfsidl nfsio 72276 136927 0 0 3 0x14280 nfsidl nfsio 91973 392189 0 0 3 0x14280 nfsidl nfsio 53911 416292 0 0 3 0x14280 nfsidl nfsio 74947 106747 0 0 3 0x14280 nfsidl nfsio 56094 293703 0 0 3 0x14280 nfsidl nfsio 52435 111656 29016 0 3 0x82 nanoslp syz-executor.4 7718 264343 29016 0 3 0x82 nanoslp syz-executor.2 5732 248271 29016 0 3 0x82 nanoslp syz-executor.1 10606 116050 29016 0 3 0x82 nanoslp syz-executor.6 17850 92129 29016 0 3 0x82 nanoslp syz-executor.5 18580 182760 29016 0 3 0x82 nanoslp syz-executor.0 70819 65345 29016 0 3 0x82 nanoslp syz-executor.7 53391 271253 1 0 3 0x18100083 ttyin getty 66282 298421 0 0 3 0x14200 bored sosplice 29016 461733 98566 0 3 0x1a000082 kqread syz-fuzzer 29016 109703 98566 0 3 0x1e000082 thrsleep syz-fuzzer 29016 295350 98566 0 3 0x1e000082 thrsleep syz-fuzzer 29016 519574 98566 0 3 0x1e000082 thrsleep syz-fuzzer 29016 347238 98566 0 3 0x1e000082 wait syz-fuzzer 29016 232716 98566 0 3 0x1e000082 thrsleep syz-fuzzer 29016 83348 98566 0 3 0x1e000082 wait syz-fuzzer 29016 398155 98566 0 3 0x1e000082 wait syz-fuzzer 29016 429005 98566 0 3 0x1e000082 wait syz-fuzzer 29016 262403 98566 0 3 0x1e000082 wait syz-fuzzer 29016 287039 98566 0 3 0x1e000082 thrsleep syz-fuzzer 29016 344603 98566 0 3 0x1e000082 wait syz-fuzzer 29016 187699 98566 0 3 0x1e000082 wait syz-fuzzer 29016 303324 98566 0 3 0x1e000082 wait syz-fuzzer 98566 460359 5926 0 3 0x810008a sigsusp ksh 5926 423062 6417 0 2 0x1800001a sshd 6417 236075 1 0 3 0x18000088 kqread sshd 64873 479499 12317 73 3 0x19100090 kqread syslogd 12317 36927 1 0 3 0x18100082 netio syslogd 98815 240642 1 0 3 0x18100080 kqread resolvd 72201 139872 59448 77 3 0x18100092 kqread dhcpleased 97330 320357 59448 77 3 0x18100092 kqread dhcpleased 59448 136734 1 0 3 0x18000080 kqread dhcpleased 33286 401211 0 0 3 0x14200 bored smr 67961 438304 0 0 2 0x14200 zerothread 33717 473521 0 0 3 0x14200 aiodoned aiodoned 84200 324604 0 0 3 0x14200 syncer update 48644 482737 0 0 3 0x14200 cleaner cleaner 6966 256036 0 0 3 0x14200 reaper reaper 74939 77271 0 0 3 0x14200 pgdaemon pagedaemon 27350 239121 0 0 3 0x14200 bored viomb 38251 320489 0 0 3 0x40014200 acpi0 acpi0 47867 490071 0 0 3 0x14200 bored softnet3 84633 393976 0 0 3 0x14200 bored softnet2 87552 238823 0 0 3 0x14200 bored softnet1 31599 214962 0 0 3 0x14200 bored softnet0 4156 421924 0 0 3 0x14200 bored systqmp 41671 8812 0 0 3 0x14200 bored systq 93016 36902 0 0 2 0x40014200 softclock 78764 323647 0 0 3 0x40014200 idle0 1 371215 0 0 3 0x8080082 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 10211 6491K 6989K 166960K 27845 0 pcb 15 18K 20K 166960K 637 0 rtable 222 10K 11K 166960K 2338 0 pf 32 9K 10K 166960K 496 0 ifaddr 43 13K 13K 166960K 381 0 ifgroup 55 2K 2K 166960K 789 0 sysctl 3 0K 1K 166960K 10 0 counters 31 17K 17K 166960K 221 0 ioctlops 0 0K 2K 166960K 556 0 iov 0 0K 26K 166960K 1118 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1517 95K 96K 166960K 7499 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 125 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1602 0 dirhash 12 2K 2K 166960K 69 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 73K 166960K 9104 0 sigio 0 0K 0K 166960K 592 0 proc 58 59K 75K 166960K 2042 0 subproc 104 6K 7K 166960K 729 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 838 0 in_multi 89 6K 7K 166960K 648 0 ether_multi 1 0K 0K 166960K 12 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 2057 0 pfkey data 0 0K 1K 166960K 6 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 480 548K 548K 166960K 84832 0 UVM aobj 131 4K 4K 166960K 131 0 pinsyscall 22 44K 100K 166960K 2688 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 311 0 NDP 12 0K 1K 166960K 306 0 temp 74 6804K 6932K 166960K 138386 0 kqueue 13 20K 31K 166960K 887 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 120 376 0 373 3 1 2 2 0 8 1 rtentry 112 683 0 582 5 1 4 4 0 8 0 unpcb 144 8320 0 8306 25 16 9 15 0 8 8 syncache 336 78 0 78 4 3 1 1 0 8 1 tcpqe 32 190 0 190 4 3 1 1 0 8 1 tcpcb 808 2522 0 2514 25 15 10 10 0 8 8 arp 88 131 0 113 1 0 1 1 0 8 0 ipq 40 5 0 4 2 1 1 1 0 8 0 ipqe 40 20 0 19 2 1 1 1 0 8 0 inpcb 360 7260 0 7238 44 33 11 15 0 8 8 nd6 104 161 0 140 1 0 1 1 0 8 0 pkpcb 40 64 0 64 4 3 1 1 0 8 1 kcovpl 48 53 0 45 1 0 1 1 0 8 0 ppxss 1072 55 0 55 3 2 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2504 0 2089 37 7 30 30 0 8 3 art_table 32 2505 0 2089 4 0 4 4 0 8 0 art_node 16 672 0 586 1 0 1 1 0 8 0 sysvmsgpl 40 46 0 15 1 0 1 1 0 8 0 semapl 112 1600 0 1590 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 55 0 38 3 0 3 3 0 8 0 dino2pl 256 14037 0 12481 98 0 98 98 0 8 0 ffsino 240 14037 0 12481 92 0 92 92 0 8 0 nchpl 144 26107 0 24381 66 1 65 66 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 94188 0 94187 4 3 1 2 0 8 0 vcpupl 2048 53 0 0 7 0 7 7 0 8 0 vmpool 664 67 0 14 5 0 5 5 0 8 0 kstatmem 264 404 0 380 2 0 2 2 0 8 0 scxspl 216 75577 0 75577 13 9 4 8 1 8 4 plimitpl 152 1140 0 1125 1 0 1 1 0 8 0 sigapl 424 9609 0 9544 8 0 8 8 0 8 0 futexpl 64 86545 0 86541 1 0 1 1 0 8 0 knotepl 120 79457 0 79373 10 0 10 10 0 8 7 kqueuepl 184 1939 0 1930 10 6 4 4 0 8 3 pipepl 288 1488 0 1460 15 8 7 7 0 8 4 fdescpl 432 9291 0 9264 4 0 4 4 0 8 0 filepl 120 59113 0 58746 38 21 17 20 0 8 5 lockfpl 104 2799 0 2797 3 1 2 2 0 8 1 lockfspl 48 1076 0 1074 1 0 1 1 0 8 0 sessionpl 144 70 0 54 1 0 1 1 0 8 0 pgrppl 48 324 0 308 1 0 1 1 0 8 0 ucredpl 104 9267 0 9250 1 0 1 1 0 8 0 zombiepl 144 9545 0 9544 2 1 1 1 0 8 0 processpl 1072 9609 0 9544 5 0 5 5 0 8 0 procpl 680 22924 0 22835 11 2 9 9 0 8 1 sosppl 168 95 0 95 4 3 1 1 0 8 1 sockpl 488 16042 0 15999 278 264 14 52 0 8 8 mcl64k 65536 363 0 363 4 3 1 1 0 8 1 mcl16k 16384 185 0 185 4 3 1 1 0 8 1 mcl12k 12288 383 0 383 4 3 1 1 0 8 1 mcl9k 9216 157 0 157 4 3 1 1 0 8 1 mcl8k 8192 984 0 984 3 2 1 1 0 8 1 mcl4k 4096 1062 0 1062 4 3 1 2 0 8 1 mcl2k2 2112 65 0 65 4 3 1 1 0 8 1 mcl2k 2048 91189 0 91130 38 24 14 27 0 8 5 mtagpl 96 1541 0 1469 11 1 10 10 0 8 6 mbufpl 256 221774 0 221545 155 124 31 64 0 8 6 bufpl 280 19340 0 12997 454 0 454 454 0 8 0 anonpl 24 962497 0 948077 171 32 139 139 0 188 40 amapchunkpl 152 267302 0 266424 61 23 38 49 0 158 0 amappl16 200 20280 0 19800 80 45 35 50 0 8 8 amappl15 192 74 0 73 1 0 1 1 0 8 0 amappl14 184 281 0 269 2 1 1 2 0 8 0 amappl13 176 23 0 23 2 1 1 1 0 8 1 amappl12 168 10613 0 10583 2 0 2 2 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 184 0 174 1 0 1 1 0 8 0 amappl9 144 236 0 232 1 0 1 1 0 8 0 amappl8 136 430 0 350 3 0 3 3 0 8 0 amappl7 128 77 0 62 1 0 1 1 0 8 0 amappl6 120 982 0 963 2 1 1 2 0 8 0 amappl5 112 502 0 490 1 0 1 1 0 8 0 amappl4 104 982 0 951 2 1 1 2 0 8 0 amappl3 96 52905 0 52825 3 0 3 3 0 8 0 amappl2 88 10206 0 10132 4 1 3 4 0 8 0 amappl1 80 44260 0 43765 22 10 12 22 0 8 0 amappl 88 83638 0 83370 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 9358 0 9278 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9358 0 9278 1 0 1 1 0 8 0 vmmpekpl 168 72323 0 72256 4 0 4 4 0 8 0 vmmpepl 168 574597 0 572237 189 55 134 134 0 357 12 vmsppl 352 9357 0 9278 9 1 8 8 0 8 0 rwobjpl 24 140438 0 132840 49 0 49 49 0 8 1 pdppl 4096 18722 0 18609 596 479 117 117 0 8 4 pvpl 32 2601706 0 2581851 503 272 231 380 0 265 56 pmappl 216 9357 0 9278 5 0 5 5 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1104 0 678 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace bpfioctl(21700,20004269,ffff80003782f6c0,3,ffff80002a603d50) at bpfioctl+0xd26 sys/net/bpf.c:901 VOP_IOCTL(fffffd8071e12bd0,20004269,ffff80003782f6c0,3,fffffd807f7d7068,ffff80002a603d50) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067c68080,20004269,ffff80003782f6c0,ffff80002a603d50) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a603d50,ffff80003782f890,ffff80003782f7e0) at sys_ioctl+0x4a5 syscall(ffff80003782f890) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x55a1963d620, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace bpfioctl(21700,20004269,ffff80003782f6c0,3,ffff80002a603d50) at bpfioctl+0xd26 sys/net/bpf.c:901 VOP_IOCTL(fffffd8071e12bd0,20004269,ffff80003782f6c0,3,fffffd807f7d7068,ffff80002a603d50) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067c68080,20004269,ffff80003782f6c0,ffff80002a603d50) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a603d50,ffff80003782f890,ffff80003782f7e0) at sys_ioctl+0x4a5 syscall(ffff80003782f890) at syscall+0x538 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x55a1963d620, count: -6