Total vulnerabilities in the database
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix OOB in nilfs_set_de_type
The size of the nilfs_type_by_mode array in the fs/nilfs2/dir.c file is defined as "S_IFMT >> S_SHIFT", but the nilfs_set_de_type() function, which uses this array, specifies the index to read from the array in the same way as "(mode & S_IFMT) >> S_SHIFT".
static void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode *inode) { umode_t mode = inode->i_mode;
de->file_type = nilfs_type_by_mode[(mode & S_IFMT)>>S_SHIFT]; // oob
}
However, when the index is determined this way, an out-of-bounds (OOB) error occurs by referring to an index that is 1 larger than the array size when the condition "mode & S_IFMT == S_IFMT" is satisfied. Therefore, a patch to resize the nilfs_type_by_mode array should be applied to prevent OOB errors.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 6.9-rc3 | 6.9-rc3.x |
| linux / linux_kernel | 6.9-rc4 | 6.9-rc4.x |
| linux / linux_kernel | 6.7 | 6.8.8 |
| linux / linux_kernel | 6.9-rc1 | 6.9-rc1.x |
| linux / linux_kernel | 6.9-rc2 | 6.9-rc2.x |
| linux / linux_kernel | 5.11 | 5.15.157 |
| linux / linux_kernel | 6.2 | 6.6.29 |
| linux / linux_kernel | 5.16 | 6.1.88 |
| linux / linux_kernel | 5.5 | 5.10.216 |
| linux / linux_kernel | 4.20 | 5.4.275 |
| linux / linux_kernel | 2.6.30 | 4.19.313 |
| debian / debian_linux | 10.0 | 10.0.x |