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| author | David Sterba <dsterba@suse.cz> | 2015-03-25 21:26:41 +0300 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2015-09-18 04:20:26 +0300 |
| commit | 60ba3db7e79d02325f0ba2a11246c74e30427d41 (patch) | |
| tree | f44c90cd70479983e29d7e49e24ce5641091f5cf /arch/arm | |
| parent | abe62247e0fd8ae561d13d803267241143ececa1 (diff) | |
| download | linux-60ba3db7e79d02325f0ba2a11246c74e30427d41.tar.xz | |
btrfs: don't accept bare namespace as a valid xattr
commit 3c3b04d10ff1811a27f86684ccd2f5ba6983211d upstream.
Due to insufficient check in btrfs_is_valid_xattr, this unexpectedly
works:
$ touch file
$ setfattr -n user. -v 1 file
$ getfattr -d file
user.="1"
ie. the missing attribute name after the namespace.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=94291
Reported-by: William Douglas <william.douglas@intel.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
[lizf: Backported to 3.4:
- 3.4 doesn't support XATTR_BTRFS_PREFIX]
Signed-off-by: Zefan Li <lizefan@huawei.com>
Diffstat (limited to 'arch/arm')
0 files changed, 0 insertions, 0 deletions