diff options
Diffstat (limited to 'sys/fs/ext2fs/ext2_lookup.c')
| -rw-r--r-- | sys/fs/ext2fs/ext2_lookup.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/sys/fs/ext2fs/ext2_lookup.c b/sys/fs/ext2fs/ext2_lookup.c index 71f1fbe24c9e..990ed330217f 100644 --- a/sys/fs/ext2fs/ext2_lookup.c +++ b/sys/fs/ext2fs/ext2_lookup.c @@ -146,6 +146,8 @@ ext2_readdir(struct vop_readdir_args *ap) int DIRBLKSIZ = VTOI(ap->a_vp)->i_e2fs->e2fs_bsize; int error; + if (uio->uio_offset < 0) + return (EINVAL); ip = VTOI(vp); if (ap->a_ncookies != NULL) { ncookies = uio->uio_resid; @@ -162,14 +164,6 @@ ext2_readdir(struct vop_readdir_args *ap) ncookies = 0; cookies = NULL; } - /* - * Avoid complications for partial directory entries by adjusting - * the i/o to end at a block boundary. Don't give up (like ufs - * does) if the initial adjustment gives a negative count, since - * many callers don't supply a large enough buffer. The correct - * size is a little larger than DIRBLKSIZ to allow for expansion - * of directory entries, but some callers just use 512. - */ offset = startoffset = uio->uio_offset; startresid = uio->uio_resid; error = 0; |