CVS commit: src/sys/ufs/ufs

["Michael van Elst" <mlelstv%netbsd.org@localhost>]

Module Name:    src
Committed By:   mlelstv
Date:           Sun Feb 24 19:06:40 UTC 2019

Modified Files:
        src/sys/ufs/ufs: ufs_vnops.c

Log Message:
Reading a directory may trigger a panic when the buffer is too small.
Adjust necessary checks.

While here, also check for arithmetic overflow.

Reported-by: syzbot+88ecace8bff24169058f%syzkaller.appspotmail.com@localhost


To generate a diff of this commit:
cvs rdiff -u -r1.242 -r1.243 src/sys/ufs/ufs/ufs_vnops.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.