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| author | Amir Goldstein <amir73il@gmail.com> | 2017-02-02 08:55:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-04 09:47:11 +0100 |
| commit | e5325fcf70b1cd2c45503b854fde3f1bd44216da (patch) | |
| tree | bf257857d39f5a0b6ba3fd11cdbc17e7d0ec7cbe /include/linux/fpga/fpga-mgr.h | |
| parent | 624e54b5aff15c6d49974f404c5cef5ce7f89cd0 (diff) | |
xfs: sanity check directory inode di_size
commit 3c6f46eacd876bd723a9bad3c6882714c052fd8e upstream.
This changes fixes an assertion hit when fuzzing on-disk
i_mode values.
The easy case to fix is when changing an empty file
i_mode to S_IFDIR. In this case, xfs_dinode_verify()
detects an illegal zero size for directory and fails
to load the inode structure from disk.
For the case of non empty file whose i_mode is changed
to S_IFDIR, the ASSERT() statement in xfs_dir2_isblock()
is replaced with return -EFSCORRUPTED, to avoid interacting
with corrupted jusk also when XFS_DEBUG is disabled.
Suggested-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions