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| author | Alex Shi <alex.shi@linaro.org> | 2016-08-11 12:15:55 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-08-11 12:15:55 +0800 |
| commit | e01035c1a71d7cceebc3df92f79577df7438523a (patch) | |
| tree | f745442c513b343e0a5d8fc84c4c0eb6603ec7b2 /fs/ext4/extents.c | |
| parent | da9a92f0cde9ce34a930d7edcaef30429e41d14a (diff) | |
| parent | 3d27bcb804a6889e8f16daf95751764907f1e100 (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 3578b25fccfd..62880586ed85 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -469,6 +469,10 @@ static int __ext4_ext_check(const char *function, unsigned int line, error_msg = "invalid extent entries"; goto corrupted; } + if (unlikely(depth > 32)) { + error_msg = "too large eh_depth"; + goto corrupted; + } /* Verify checksum on non-root extent tree nodes */ if (ext_depth(inode) != depth && !ext4_extent_block_csum_verify(inode, eh)) { |