diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2017-03-15 00:24:25 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2017-03-15 00:24:25 -0700 |
| commit | 630a04e79dd41ff746b545d4fc052e0abb836120 (patch) | |
| tree | ef788a95dc530d80b012987a1dc60f9a3912abbe /fs/xfs/libxfs/xfs_dir2_priv.h | |
| parent | 2fcc319d2467a5f5b78f35f79fd6e22741a31b1e (diff) | |
xfs: verify inline directory data forksxfs-4.11-fixes-2
When we're reading or writing the data fork of an inline directory,
check the contents to make sure we're not overflowing buffers or eating
garbage data. xfs/348 corrupts an inline symlink into an inline
directory, triggering a buffer overflow bug.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
---
v2: add more checks consistent with _dir2_sf_check and make the verifier
usable from anywhere.
Diffstat (limited to 'fs/xfs/libxfs/xfs_dir2_priv.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_dir2_priv.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_dir2_priv.h b/fs/xfs/libxfs/xfs_dir2_priv.h index d04547fcf274..eb00bc133bca 100644 --- a/fs/xfs/libxfs/xfs_dir2_priv.h +++ b/fs/xfs/libxfs/xfs_dir2_priv.h @@ -125,6 +125,8 @@ extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino); extern int xfs_dir2_sf_lookup(struct xfs_da_args *args); extern int xfs_dir2_sf_removename(struct xfs_da_args *args); extern int xfs_dir2_sf_replace(struct xfs_da_args *args); +extern int xfs_dir2_sf_verify(struct xfs_mount *mp, struct xfs_dir2_sf_hdr *sfp, + int size); /* xfs_dir2_readdir.c */ extern int xfs_readdir(struct xfs_inode *dp, struct dir_context *ctx, |