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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-09-29 05:40:40 +0200 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2018-09-29 05:40:40 +0200 |
| commit | ae29478766f4c8e16edca6fe1e25d73c47991ebe (patch) | |
| tree | 0e37ce3de3e13f7a2f3c1e00651c25905c70fac6 /fs/xfs/xfs_inode.c | |
| parent | Linux 4.19-rc1 (diff) | |
| download | linux-ae29478766f4c8e16edca6fe1e25d73c47991ebe.tar.xz linux-ae29478766f4c8e16edca6fe1e25d73c47991ebe.zip | |
xfs: don't crash the vfs on a garbage inline symlink
The VFS routine that calls ->get_link blindly copies whatever's returned
into the user's buffer. If we return a NULL pointer, the vfs will
crash on the null pointer. Therefore, return -EFSCORRUPTED instead of
blowing up the kernel.
[dgc: clean up with hch's suggestions]
Reported-by: wen.xu@gatech.edu
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_inode.c')
0 files changed, 0 insertions, 0 deletions