AFAICT, with current code user could pass something like "lzox" and
still get "lzo" compression. Check string lengths to prevent that.
Signed-off-by: Pavel Machek <pavel@xxxxxxx>
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index b05b361..1083ab4 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -51,7 +51,7 @@ bool btrfs_compress_is_valid_type(const char *str, size_t len)
for (i = 1; i < ARRAY_SIZE(btrfs_compress_types); i++) {
size_t comp_len = strlen(btrfs_compress_types[i]);
- if (len < comp_len)
+ if (len != comp_len)
continue;
if (!strncmp(btrfs_compress_types[i], str, comp_len))
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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