diff options
Diffstat (limited to 'freed-ora/current/F-12/ext4-make-sure-the-move_ext-ioctl-can-t-overwrite-append-only-files.patch')
| -rw-r--r-- | freed-ora/current/F-12/ext4-make-sure-the-move_ext-ioctl-can-t-overwrite-append-only-files.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/freed-ora/current/F-12/ext4-make-sure-the-move_ext-ioctl-can-t-overwrite-append-only-files.patch b/freed-ora/current/F-12/ext4-make-sure-the-move_ext-ioctl-can-t-overwrite-append-only-files.patch new file mode 100644 index 000000000..14407a5a9 --- /dev/null +++ b/freed-ora/current/F-12/ext4-make-sure-the-move_ext-ioctl-can-t-overwrite-append-only-files.patch @@ -0,0 +1,34 @@ +From 1f5a81e41f8b1a782c68d3843e9ec1bfaadf7d72 Mon Sep 17 00:00:00 2001 +From: Theodore Ts'o <tytso@mit.edu> +Date: Wed, 2 Jun 2010 22:04:39 -0400 +Subject: ext4: Make sure the MOVE_EXT ioctl can't overwrite append-only files + +From: Theodore Ts'o <tytso@mit.edu> + +commit 1f5a81e41f8b1a782c68d3843e9ec1bfaadf7d72 upstream. + +Dan Roseberg has reported a problem with the MOVE_EXT ioctl. If the +donor file is an append-only file, we should not allow the operation +to proceed, lest we end up overwriting the contents of an append-only +file. + +Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> +Cc: Dan Rosenberg <dan.j.rosenberg@gmail.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> + +--- + fs/ext4/move_extent.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/fs/ext4/move_extent.c ++++ b/fs/ext4/move_extent.c +@@ -959,6 +959,9 @@ mext_check_arguments(struct inode *orig_ + return -EINVAL; + } + ++ if (IS_IMMUTABLE(donor_inode) || IS_APPEND(donor_inode)) ++ return -EPERM; ++ + /* Ext4 move extent does not support swapfile */ + if (IS_SWAPFILE(orig_inode) || IS_SWAPFILE(donor_inode)) { + ext4_debug("ext4 move extent: The argument files should " |
