uvm_fault: ffs2_balloc (6)
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syzbot
Sep 13, 2025, 3:05:32 AM (5 days ago) Sep 13
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 597bb1fc1f2a In pfkey_reply() ensure that any error messag..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17bccb62580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=19486825c73fc7b7d4a2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a44f34029cc4/disk-597bb1fc.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/5cb21f84a680/bsd-597bb1fc.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/db7f40ad67c6/kernel-597bb1fc.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+194868...@syzkaller.appspotmail.com
uvm_fault(0xffffffff838fce98, 0xffff800028da2068, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
127992 10026 0 0 0 1 syz-executor
* 64149 11941 0 0x2 0x1 0K syz-executor
ffs2_balloc(fffffd806bd69850,663bb,48,fffffd80097fb888,1,ffff80002a2f7f58) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a2f7fe0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805f3f3450,ffff80002a2f8090,3,fffffd80097fb888) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffffd4c8,fffffd805f3f3450,fffffd80097fb888,ffff80002a2f8160,ffff80002a2f8140) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a2f82e0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a2f82e0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7334746dc570, count: 8
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xffffffff838fce98, 0xffff800028da2068, 0, 1) -> d
ddb{0}> trace
ffs2_balloc(fffffd806bd69850,663bb,48,fffffd80097fb888,1,ffff80002a2f7f58) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a2f7fe0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805f3f3450,ffff80002a2f8090,3,fffffd80097fb888) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffffd4c8,fffffd805f3f3450,fffffd80097fb888,ffff80002a2f8160,ffff80002a2f8140) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a2f82e0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a2f82e0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7334746dc570, count: -7
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002a2f7f00
rbx 0
rdx 0
rcx 0xffff800028da2000
rax 0xd
r8 0xffffffffffffffff
r9 0xffff80002a2f7f58
r10 0x49a2cc8b201ce1a1
r11 0xd311296af25f5d8a
r12 0x1
r13 0xffff800000b2d800
r14 0xffff80002a2f7d90
r15 0xfffffd805e0098c8
rip 0xffffffff81e6aa2d ffs2_balloc+0xa0d
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a2f7d80
ss 0x10
ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14
ddb{0}> show proc
PROC (syz-executor) tid=64149 pid=11941 tcnt=1 stat=onproc
flags process=2<EXEC> proc=1<INKTR>
runpri=17, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffffdc90,0xffff80002a272020
process=0xffff8000ffff1350 user=0xffff80002a2f3000, vmspace=0xfffffd806e3ce5c8
estcpu=36, cpticks=46, pctcpu=0.19, user=1, sys=43, intr=2
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
68557 307217 684 0 2 0 syz-executor
10026 127992 63412 0 7 0 syz-executor
10026 348122 63412 0 2 0x4000000 syz-executor
71505 336284 7629 0 2 0 syz-executor
71505 80577 7629 0 2 0x4000000 syz-executor
71505 139913 7629 0 3 0x4000080 fsleep syz-executor
43940 445026 36994 0 2 0xc90 syz-executor
43940 187916 36994 0 3 0x4000090 ttyin syz-executor
43940 221868 36994 0 3 0x4000090 ttyin syz-executor
43940 114732 36994 0 3 0x4000090 fsleep syz-executor
17193 271921 45020 0 3 0x3000 suspend syz-executor
17193 296493 45020 0 2 0x4081000 syz-executor
36389 504308 0 0 3 0x14200 bored sosplice
684 356835 54645 0 2 0xc82 syz-executor
7629 430774 54645 0 2 0xc82 syz-executor
45020 487157 54645 0 2 0x2 syz-executor
36994 16130 54645 0 2 0xc82 syz-executor
83347 449476 54645 0 2 0xc82 syz-executor
8664 210140 54645 0 2 0x2 syz-executor
63412 31893 54645 0 2 0x2 syz-executor
*11941 64149 54645 0 7 0x3 syz-executor
54645 319683 1725 0 3 0x82 kqread syz-executor
1725 209630 19388 0 3 0x10008a sigsusp ksh
19388 512363 12380 0 3 0x98 kqread sshd-session
12380 361745 31518 0 3 0x92 kqread sshd-session
6942 414101 1 0 3 0x100083 ttyopn getty
31518 400757 1 0 3 0x88 kqread sshd
75754 16417 2413 74 3 0x1100092 bpf pflogd
2413 315098 1 0 3 0x80 sbwait pflogd
71675 509960 43230 73 3 0x1100090 kqread syslogd
43230 518563 1 0 3 0x100082 sbwait syslogd
14768 67948 1 0 3 0x100080 kqread resolvd
69528 81480 42211 77 3 0x100092 kqread dhcpleased
18501 214188 42211 77 3 0x100092 kqread dhcpleased
42211 190662 1 0 3 0x80 kqread dhcpleased
74797 400805 0 0 3 0x14200 bored smr
13679 16107 0 0 2 0x14200 zerothread
89399 440110 0 0 3 0x14200 aiodoned aiodoned
59134 216088 0 0 3 0x14200 syncer update
11778 98176 0 0 3 0x14200 cleaner cleaner
91383 290150 0 0 3 0x14200 reaper reaper
90760 142015 0 0 3 0x14200 pgdaemon pagedaemon
86587 267342 0 0 3 0x14200 bored viomb
70452 57326 0 0 3 0x40014200 acpi0 acpi0
53929 261296 0 0 3 0x40014200 idle1
57179 213008 0 0 3 0x14200 bored softnet1
43557 261547 0 0 3 0x14200 bored softnet0
97027 428401 0 0 3 0x14200 bored systqmp
10275 6723 0 0 3 0x14200 bored systq
8170 341732 0 0 3 0x14200 tmoslp softclockmp
96178 258582 0 0 3 0x40014200 tmoslp softclock
30161 199497 0 0 3 0x40014200 idle0
1 276173 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
Process 17193 (syz-executor) thread 0xffff8000fffee7e0 (296493)
exclusive rrwlock inode r = 0 (0xfffffd806e041418)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vn_write+0x18f sys/kern/vfs_vnops.c:405
#6 dofilewritev+0x242 sys/kern/sys_generic.c:380
#7 sys_write+0xa2 sys/kern/sys_generic.c:300
#8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746
#9 Xsyscall+0x128
Process 11941 (syz-executor) thread 0xffff8000ffffd4c8 (64149)
exclusive rrwlock inode r = 0 (0xfffffd806bd698f0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vget+0x2a2 sys/kern/vfs_subr.c:693
#6 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688
#7 ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
#7 ktrsysret+0x192 sys/kern/kern_ktrace.c:209
#8 syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
#8 syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838f9630)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
#1 ktrsysret+0xde sys/kern/kern_ktrace.c:209
#2 syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
#2 syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
#3 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10204 11154K 11348K 166960K 11879 0
pcb 17 15K 17K 166960K 136 0
rtable 197 7K 8K 166960K 323 0
pf 34 17K 19K 166960K 75 0
ifaddr 38 6K 8K 166960K 60 0
ifgroup 53 2K 2K 166960K 87 0
sysctl 3 1K 9K 166960K 11 0
counters 68 36K 37K 166960K 102 0
ioctlops 0 0K 4K 166960K 1535 0
iov 1 12K 28K 166960K 28 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1337 84K 85K 166960K 1700 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 10 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 47 0
dirhash 12 2K 2K 166960K 18 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 89K 166960K 599 0
sigio 0 0K 0K 166960K 10 0
proc 72 115K 148K 166960K 597 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 65 0
in_multi 78 5K 7K 166960K 132 0
ether_multi 1 0K 0K 166960K 6 0
mrt 0 0K 0K 166960K 7 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 79 360K 360K 166960K 79 0
exec 0 0K 1K 166960K 462 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 243 168K 177K 166960K 7139 0
UVM aobj 3 2K 2K 166960K 3 0
pinsyscall 42 84K 104K 166960K 1687 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 0K 166960K 78 0
NDP 12 0K 2K 166960K 41 0
temp 77 8652K 8720K 166960K 31438 0
kqueue 13 20K 28K 166960K 118 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 26 0 0 1 0 1 1 0 8 0
rtpcb 120 72 0 69 1 0 1 1 0 8 0
rtentry 176 112 0 28 5 0 5 5 0 8 0
unpcb 144 343 0 325 4 3 1 4 0 8 0
syncache 336 6 0 6 1 1 0 1 0 8 0
tcpcb 736 190 0 186 7 6 1 7 0 8 0
arp 136 13 0 3 1 0 1 1 0 8 0
inpcb 328 861 0 853 18 6 12 12 0 8 11
nd6 144 21 0 6 1 0 1 1 0 8 0
pkpcb 40 2 0 2 2 1 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1192 14 0 13 3 2 1 1 0 8 0
pffrag 232 4 0 0 1 0 1 1 0 482 0
pffrnode 88 3 0 0 1 0 1 1 0 8 0
pffrent 40 7 0 3 1 0 1 1 0 8 0
pfosfp 40 1429 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1429 0 714 21 0 21 21 0 8 0
pfstitem 24 48 0 11 1 0 1 1 0 8 0
pfstkey 128 48 0 11 2 0 2 2 0 8 0
pfstate 384 48 0 11 5 0 5 5 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
rttmr 136 2 0 2 1 1 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 489 0 126 30 3 27 30 0 8 1
art_table 40 490 0 126 5 0 5 5 0 8 0
art_node 32 111 0 36 1 0 1 1 0 8 0
sysvmsgpl 40 68 0 66 1 0 1 1 0 8 0
semapl 112 44 0 34 1 0 1 1 0 8 0
dirhash 1024 21 0 4 3 0 3 3 0 8 0
dino2pl 256 2449 0 940 96 1 95 96 0 8 0
ffsino 296 2449 0 940 118 1 117 118 0 8 0
nchpl 144 3374 0 1685 64 0 64 64 0 8 0
rtmask 32 4 0 4 2 1 1 1 0 8 1
uvmvnodes 80 2697 0 0 56 0 56 56 0 8 0
vnodes 216 2697 0 0 150 0 150 150 0 8 0
namei 1024 11463 0 11463 2 1 1 1 0 8 1
percpumem 16 66 0 17 1 0 1 1 0 8 0
kstatmem 264 50 0 24 3 1 2 3 0 8 0
scsiplug 72 2 0 2 1 1 0 1 0 8 0
scxspl 216 13668 0 13668 13 9 4 8 1 8 4
plimitpl 152 127 0 108 1 0 1 1 0 8 0
sigapl 424 900 0 852 7 1 6 7 0 8 0
knotepl 120 567 0 0 18 0 18 18 0 8 0
kqueuepl 224 244 0 235 7 5 2 5 0 8 1
pipepl 344 141 0 114 3 0 3 3 0 8 0
fdescpl 528 881 0 850 3 0 3 3 0 8 0
filepl 160 5226 0 5003 20 3 17 17 0 8 5
lockfpl 104 239 0 236 1 0 1 1 0 8 0
lockfspl 48 106 0 103 1 0 1 1 0 8 0
sessionpl 144 24 0 15 1 0 1 1 0 8 0
pgrppl 48 43 0 26 1 0 1 1 0 8 0
ucredpl 104 717 0 703 1 0 1 1 0 8 0
zombiepl 144 855 0 852 1 0 1 1 0 8 0
processpl 1232 900 0 852 5 0 5 5 0 8 0
procpl 664 1655 0 1600 6 0 6 6 0 8 1
sosppl 168 1 0 1 1 0 1 1 0 8 1
sockpl 752 1290 0 1261 24 7 17 17 0 8 14
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 115 0 0 15 0 15 15 0 8 0
mcl2k 2048 25 0 0 4 0 4 4 0 8 0
mtagpl 96 6 0 0 1 0 1 1 0 8 0
mbufpl 256 159 0 0 10 0 10 10 0 8 0
bufpl 280 6350 0 207 439 0 439 439 0 8 0
anonpl 32 10145 0 0 82 0 82 82 0 246 0
amapchunkpl 152 23379 0 22755 42 8 34 34 0 158 4
amappl16 200 3336 0 3129 25 14 11 17 0 8 0
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 115 0 103 1 0 1 1 0 8 0
amappl13 176 8 0 8 1 1 0 1 0 8 0
amappl12 168 1522 0 1492 3 1 2 2 0 8 0
amappl11 160 50 0 36 1 0 1 1 0 8 0
amappl10 152 78 0 78 1 1 0 1 0 8 0
amappl9 144 278 0 277 1 0 1 1 0 8 0
amappl8 136 27 0 24 1 0 1 1 0 8 0
amappl7 128 114 0 102 1 0 1 1 0 8 0
amappl6 120 189 0 185 1 0 1 1 0 8 0
amappl5 112 122 0 112 1 0 1 1 0 8 0
amappl4 104 298 0 277 1 0 1 1 0 8 0
amappl3 96 3935 0 3841 3 0 3 3 0 8 0
amappl2 88 1128 0 1050 2 0 2 2 0 8 0
amappl1 80 10612 0 10007 15 0 15 15 0 8 0
amappl 88 6393 0 6223 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 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 882 0 851 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 882 0 851 1 0 1 1 0 8 0
vmmpekpl 168 8504 0 8468 2 0 2 2 0 8 0
vmmpepl 168 61870 0 59707 106 8 98 103 0 357 0
vmsppl 488 881 0 851 5 1 4 5 0 8 0
rwobjpl 80 21562 0 17743 79 0 79 79 0 8 0
pdppl 4096 1772 0 1702 102 30 72 86 0 8 2
pvpl 32 20938 0 0 170 1 169 169 0 265 0
pmappl 256 881 0 851 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 279 0 44 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
ffs2_balloc(fffffd806bd69850,663bb,48,fffffd80097fb888,1,ffff80002a2f7f58) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a2f7fe0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805f3f3450,ffff80002a2f8090,3,fffffd80097fb888) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffffd4c8,fffffd805f3f3450,fffffd80097fb888,ffff80002a2f8160,ffff80002a2f8140) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a2f82e0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a2f82e0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7334746dc570, count: -7
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x747d9c27db40, count: 12
ddb{1}> trace
x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x747d9c27db40, count: -3
---
This report is generated by a bot. It may contain errors.
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syzbot found the following issue on:
HEAD commit: 597bb1fc1f2a In pfkey_reply() ensure that any error messag..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17bccb62580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=19486825c73fc7b7d4a2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a44f34029cc4/disk-597bb1fc.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/5cb21f84a680/bsd-597bb1fc.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/db7f40ad67c6/kernel-597bb1fc.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+194868...@syzkaller.appspotmail.com
uvm_fault(0xffffffff838fce98, 0xffff800028da2068, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
127992 10026 0 0 0 1 syz-executor
* 64149 11941 0 0x2 0x1 0K syz-executor
ffs2_balloc(fffffd806bd69850,663bb,48,fffffd80097fb888,1,ffff80002a2f7f58) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a2f7fe0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805f3f3450,ffff80002a2f8090,3,fffffd80097fb888) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffffd4c8,fffffd805f3f3450,fffffd80097fb888,ffff80002a2f8160,ffff80002a2f8140) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a2f82e0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a2f82e0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7334746dc570, count: 8
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xffffffff838fce98, 0xffff800028da2068, 0, 1) -> d
ddb{0}> trace
ffs2_balloc(fffffd806bd69850,663bb,48,fffffd80097fb888,1,ffff80002a2f7f58) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a2f7fe0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805f3f3450,ffff80002a2f8090,3,fffffd80097fb888) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffffd4c8,fffffd805f3f3450,fffffd80097fb888,ffff80002a2f8160,ffff80002a2f8140) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a2f82e0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a2f82e0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7334746dc570, count: -7
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002a2f7f00
rbx 0
rdx 0
rcx 0xffff800028da2000
rax 0xd
r8 0xffffffffffffffff
r9 0xffff80002a2f7f58
r10 0x49a2cc8b201ce1a1
r11 0xd311296af25f5d8a
r12 0x1
r13 0xffff800000b2d800
r14 0xffff80002a2f7d90
r15 0xfffffd805e0098c8
rip 0xffffffff81e6aa2d ffs2_balloc+0xa0d
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a2f7d80
ss 0x10
ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14
ddb{0}> show proc
PROC (syz-executor) tid=64149 pid=11941 tcnt=1 stat=onproc
flags process=2<EXEC> proc=1<INKTR>
runpri=17, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffffdc90,0xffff80002a272020
process=0xffff8000ffff1350 user=0xffff80002a2f3000, vmspace=0xfffffd806e3ce5c8
estcpu=36, cpticks=46, pctcpu=0.19, user=1, sys=43, intr=2
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
68557 307217 684 0 2 0 syz-executor
10026 127992 63412 0 7 0 syz-executor
10026 348122 63412 0 2 0x4000000 syz-executor
71505 336284 7629 0 2 0 syz-executor
71505 80577 7629 0 2 0x4000000 syz-executor
71505 139913 7629 0 3 0x4000080 fsleep syz-executor
43940 445026 36994 0 2 0xc90 syz-executor
43940 187916 36994 0 3 0x4000090 ttyin syz-executor
43940 221868 36994 0 3 0x4000090 ttyin syz-executor
43940 114732 36994 0 3 0x4000090 fsleep syz-executor
17193 271921 45020 0 3 0x3000 suspend syz-executor
17193 296493 45020 0 2 0x4081000 syz-executor
36389 504308 0 0 3 0x14200 bored sosplice
684 356835 54645 0 2 0xc82 syz-executor
7629 430774 54645 0 2 0xc82 syz-executor
45020 487157 54645 0 2 0x2 syz-executor
36994 16130 54645 0 2 0xc82 syz-executor
83347 449476 54645 0 2 0xc82 syz-executor
8664 210140 54645 0 2 0x2 syz-executor
63412 31893 54645 0 2 0x2 syz-executor
*11941 64149 54645 0 7 0x3 syz-executor
54645 319683 1725 0 3 0x82 kqread syz-executor
1725 209630 19388 0 3 0x10008a sigsusp ksh
19388 512363 12380 0 3 0x98 kqread sshd-session
12380 361745 31518 0 3 0x92 kqread sshd-session
6942 414101 1 0 3 0x100083 ttyopn getty
31518 400757 1 0 3 0x88 kqread sshd
75754 16417 2413 74 3 0x1100092 bpf pflogd
2413 315098 1 0 3 0x80 sbwait pflogd
71675 509960 43230 73 3 0x1100090 kqread syslogd
43230 518563 1 0 3 0x100082 sbwait syslogd
14768 67948 1 0 3 0x100080 kqread resolvd
69528 81480 42211 77 3 0x100092 kqread dhcpleased
18501 214188 42211 77 3 0x100092 kqread dhcpleased
42211 190662 1 0 3 0x80 kqread dhcpleased
74797 400805 0 0 3 0x14200 bored smr
13679 16107 0 0 2 0x14200 zerothread
89399 440110 0 0 3 0x14200 aiodoned aiodoned
59134 216088 0 0 3 0x14200 syncer update
11778 98176 0 0 3 0x14200 cleaner cleaner
91383 290150 0 0 3 0x14200 reaper reaper
90760 142015 0 0 3 0x14200 pgdaemon pagedaemon
86587 267342 0 0 3 0x14200 bored viomb
70452 57326 0 0 3 0x40014200 acpi0 acpi0
53929 261296 0 0 3 0x40014200 idle1
57179 213008 0 0 3 0x14200 bored softnet1
43557 261547 0 0 3 0x14200 bored softnet0
97027 428401 0 0 3 0x14200 bored systqmp
10275 6723 0 0 3 0x14200 bored systq
8170 341732 0 0 3 0x14200 tmoslp softclockmp
96178 258582 0 0 3 0x40014200 tmoslp softclock
30161 199497 0 0 3 0x40014200 idle0
1 276173 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
Process 17193 (syz-executor) thread 0xffff8000fffee7e0 (296493)
exclusive rrwlock inode r = 0 (0xfffffd806e041418)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vn_write+0x18f sys/kern/vfs_vnops.c:405
#6 dofilewritev+0x242 sys/kern/sys_generic.c:380
#7 sys_write+0xa2 sys/kern/sys_generic.c:300
#8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746
#9 Xsyscall+0x128
Process 11941 (syz-executor) thread 0xffff8000ffffd4c8 (64149)
exclusive rrwlock inode r = 0 (0xfffffd806bd698f0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vget+0x2a2 sys/kern/vfs_subr.c:693
#6 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688
#7 ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
#7 ktrsysret+0x192 sys/kern/kern_ktrace.c:209
#8 syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
#8 syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838f9630)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
#1 ktrsysret+0xde sys/kern/kern_ktrace.c:209
#2 syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
#2 syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
#3 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10204 11154K 11348K 166960K 11879 0
pcb 17 15K 17K 166960K 136 0
rtable 197 7K 8K 166960K 323 0
pf 34 17K 19K 166960K 75 0
ifaddr 38 6K 8K 166960K 60 0
ifgroup 53 2K 2K 166960K 87 0
sysctl 3 1K 9K 166960K 11 0
counters 68 36K 37K 166960K 102 0
ioctlops 0 0K 4K 166960K 1535 0
iov 1 12K 28K 166960K 28 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1337 84K 85K 166960K 1700 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 10 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 47 0
dirhash 12 2K 2K 166960K 18 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 89K 166960K 599 0
sigio 0 0K 0K 166960K 10 0
proc 72 115K 148K 166960K 597 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 65 0
in_multi 78 5K 7K 166960K 132 0
ether_multi 1 0K 0K 166960K 6 0
mrt 0 0K 0K 166960K 7 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 79 360K 360K 166960K 79 0
exec 0 0K 1K 166960K 462 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 243 168K 177K 166960K 7139 0
UVM aobj 3 2K 2K 166960K 3 0
pinsyscall 42 84K 104K 166960K 1687 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 0K 166960K 78 0
NDP 12 0K 2K 166960K 41 0
temp 77 8652K 8720K 166960K 31438 0
kqueue 13 20K 28K 166960K 118 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 26 0 0 1 0 1 1 0 8 0
rtpcb 120 72 0 69 1 0 1 1 0 8 0
rtentry 176 112 0 28 5 0 5 5 0 8 0
unpcb 144 343 0 325 4 3 1 4 0 8 0
syncache 336 6 0 6 1 1 0 1 0 8 0
tcpcb 736 190 0 186 7 6 1 7 0 8 0
arp 136 13 0 3 1 0 1 1 0 8 0
inpcb 328 861 0 853 18 6 12 12 0 8 11
nd6 144 21 0 6 1 0 1 1 0 8 0
pkpcb 40 2 0 2 2 1 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1192 14 0 13 3 2 1 1 0 8 0
pffrag 232 4 0 0 1 0 1 1 0 482 0
pffrnode 88 3 0 0 1 0 1 1 0 8 0
pffrent 40 7 0 3 1 0 1 1 0 8 0
pfosfp 40 1429 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1429 0 714 21 0 21 21 0 8 0
pfstitem 24 48 0 11 1 0 1 1 0 8 0
pfstkey 128 48 0 11 2 0 2 2 0 8 0
pfstate 384 48 0 11 5 0 5 5 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
rttmr 136 2 0 2 1 1 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 489 0 126 30 3 27 30 0 8 1
art_table 40 490 0 126 5 0 5 5 0 8 0
art_node 32 111 0 36 1 0 1 1 0 8 0
sysvmsgpl 40 68 0 66 1 0 1 1 0 8 0
semapl 112 44 0 34 1 0 1 1 0 8 0
dirhash 1024 21 0 4 3 0 3 3 0 8 0
dino2pl 256 2449 0 940 96 1 95 96 0 8 0
ffsino 296 2449 0 940 118 1 117 118 0 8 0
nchpl 144 3374 0 1685 64 0 64 64 0 8 0
rtmask 32 4 0 4 2 1 1 1 0 8 1
uvmvnodes 80 2697 0 0 56 0 56 56 0 8 0
vnodes 216 2697 0 0 150 0 150 150 0 8 0
namei 1024 11463 0 11463 2 1 1 1 0 8 1
percpumem 16 66 0 17 1 0 1 1 0 8 0
kstatmem 264 50 0 24 3 1 2 3 0 8 0
scsiplug 72 2 0 2 1 1 0 1 0 8 0
scxspl 216 13668 0 13668 13 9 4 8 1 8 4
plimitpl 152 127 0 108 1 0 1 1 0 8 0
sigapl 424 900 0 852 7 1 6 7 0 8 0
knotepl 120 567 0 0 18 0 18 18 0 8 0
kqueuepl 224 244 0 235 7 5 2 5 0 8 1
pipepl 344 141 0 114 3 0 3 3 0 8 0
fdescpl 528 881 0 850 3 0 3 3 0 8 0
filepl 160 5226 0 5003 20 3 17 17 0 8 5
lockfpl 104 239 0 236 1 0 1 1 0 8 0
lockfspl 48 106 0 103 1 0 1 1 0 8 0
sessionpl 144 24 0 15 1 0 1 1 0 8 0
pgrppl 48 43 0 26 1 0 1 1 0 8 0
ucredpl 104 717 0 703 1 0 1 1 0 8 0
zombiepl 144 855 0 852 1 0 1 1 0 8 0
processpl 1232 900 0 852 5 0 5 5 0 8 0
procpl 664 1655 0 1600 6 0 6 6 0 8 1
sosppl 168 1 0 1 1 0 1 1 0 8 1
sockpl 752 1290 0 1261 24 7 17 17 0 8 14
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 115 0 0 15 0 15 15 0 8 0
mcl2k 2048 25 0 0 4 0 4 4 0 8 0
mtagpl 96 6 0 0 1 0 1 1 0 8 0
mbufpl 256 159 0 0 10 0 10 10 0 8 0
bufpl 280 6350 0 207 439 0 439 439 0 8 0
anonpl 32 10145 0 0 82 0 82 82 0 246 0
amapchunkpl 152 23379 0 22755 42 8 34 34 0 158 4
amappl16 200 3336 0 3129 25 14 11 17 0 8 0
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 115 0 103 1 0 1 1 0 8 0
amappl13 176 8 0 8 1 1 0 1 0 8 0
amappl12 168 1522 0 1492 3 1 2 2 0 8 0
amappl11 160 50 0 36 1 0 1 1 0 8 0
amappl10 152 78 0 78 1 1 0 1 0 8 0
amappl9 144 278 0 277 1 0 1 1 0 8 0
amappl8 136 27 0 24 1 0 1 1 0 8 0
amappl7 128 114 0 102 1 0 1 1 0 8 0
amappl6 120 189 0 185 1 0 1 1 0 8 0
amappl5 112 122 0 112 1 0 1 1 0 8 0
amappl4 104 298 0 277 1 0 1 1 0 8 0
amappl3 96 3935 0 3841 3 0 3 3 0 8 0
amappl2 88 1128 0 1050 2 0 2 2 0 8 0
amappl1 80 10612 0 10007 15 0 15 15 0 8 0
amappl 88 6393 0 6223 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 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 882 0 851 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 882 0 851 1 0 1 1 0 8 0
vmmpekpl 168 8504 0 8468 2 0 2 2 0 8 0
vmmpepl 168 61870 0 59707 106 8 98 103 0 357 0
vmsppl 488 881 0 851 5 1 4 5 0 8 0
rwobjpl 80 21562 0 17743 79 0 79 79 0 8 0
pdppl 4096 1772 0 1702 102 30 72 86 0 8 2
pvpl 32 20938 0 0 170 1 169 169 0 265 0
pmappl 256 881 0 851 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 279 0 44 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
ffs2_balloc(fffffd806bd69850,663bb,48,fffffd80097fb888,1,ffff80002a2f7f58) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a2f7fe0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd805f3f3450,ffff80002a2f8090,3,fffffd80097fb888) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffffd4c8,fffffd805f3f3450,fffffd80097fb888,ffff80002a2f8160,ffff80002a2f8140) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff8000ffffd4c8,88,16,ffff80002a2f8230) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a2f82e0) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a2f82e0) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:767
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7334746dc570, count: -7
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x747d9c27db40, count: 12
ddb{1}> trace
x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x747d9c27db40, count: -3
---
This report is generated by a bot. It may contain errors.
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