panic: voWARNpI_NgGe:n SePLr iNc_ObT adLOoWpE

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syzbot

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May 18, 2023, 3:12:48 AM5/18/23
to syzkaller-o...@googlegroups.com
Hello,

syzbot found the following issue on:

HEAD commit: 2bfe9404df32 fix -n
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=11893a5a280000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=1b576538d8859de192db

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/1bdaa7ad942d/disk-2bfe9404.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/f85199ea301d/bsd-2bfe9404.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/aa6763698eff/kernel-2bfe9404.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+1b5765...@syzkaller.appspotmail.com

panic: voWARNpI_NgGe:n SePLr iNc_ObT adLOoWpE
REDS OtN oSpYSpCeAdL L at73 189157376 EXIT 0 a
db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*364182 45323 0 0 0x4000000 0K syz-executor.3
62960 74236 0 0x12 0 1 sshd
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff827845b5) at panic+0x17b sys/kern/subr_prf.c:198
vop_generic_badop(ffff80002afab228) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd8069136478,fffffd805b8436d0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd805b8436d0) at bwrite+0x1f4 sys/kern/vfs_bio.c:760
VOP_BWRITE(fffffd805b8436d0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ffs_truncate(fffffd80656d3220,400,0,fffffd807f7d78f0) at ffs_truncate+0x726 sys/ufs/ffs/ffs_inode.c:223
ufs_setattr(ffff80002afab590) at ufs_setattr+0x6c1 sys/ufs/ufs/ufs_vnops.c:407
VOP_SETATTR(fffffd8069136478,ffff80002afab618,fffffd807f7d78f0,ffff8000211f35d0) at VOP_SETATTR+0xdd sys/kern/vfs_vops.c:210
dotruncate(ffff8000211f35d0,fffffd8069136478,400) at dotruncate+0x13e sys/kern/vfs_syscalls.c:2821
sys_truncate(ffff8000211f35d0,ffff80002afab820,ffff80002afab870) at sys_truncate+0xe1 sys/kern/vfs_syscalls.c:2846
syscall(ffff80002afab8f0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002afab8f0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfc145662860, count: 2
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.


---
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Greg Steuck

unread,
May 20, 2023, 12:16:51 AM5/20/23
to syzbot, syzkaller-o...@googlegroups.com
#syz invalid

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