diff options
| author | gkostka <kostka.grzegorz@gmail.com> | 2016-04-12 17:43:13 +0200 |
|---|---|---|
| committer | gkostka <kostka.grzegorz@gmail.com> | 2016-04-12 17:43:13 +0200 |
| commit | af5034292e3db3d9db5f31479185ef65f8a1cf9a (patch) | |
| tree | 455824ba1a818533a5310b0ed630eb15c532d9d3 /include | |
| parent | 44ce3df15ccdbf6dd79801b9320c1eed690496e8 (diff) | |
ext4_fs: fix possible overflow
Diffstat (limited to 'include')
| -rw-r--r-- | include/ext4_fs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/ext4_fs.h b/include/ext4_fs.h index b598c5e..9653f47 100644 --- a/include/ext4_fs.h +++ b/include/ext4_fs.h @@ -94,7 +94,7 @@ struct ext4_inode_ref { static inline uint32_t ext4_fs_addr_to_idx_bg(struct ext4_sblock *s, ext4_fsblk_t baddr) { - if (ext4_get32(s, first_data_block)) + if (ext4_get32(s, first_data_block) && baddr) baddr--; return baddr % ext4_get32(s, blocks_per_group); |