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.
Vendor | Product | Version | CPE |
---|---|---|---|
linux | linux_kernel | * | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/nilfs2/dir.c"
],
"versions": [
{
"version": "2ba466d74ed7",
"lessThan": "054f29e9ca05",
"status": "affected",
"versionType": "git"
},
{
"version": "2ba466d74ed7",
"lessThan": "90f43980ea6b",
"status": "affected",
"versionType": "git"
},
{
"version": "2ba466d74ed7",
"lessThan": "7061c7efbb9e",
"status": "affected",
"versionType": "git"
},
{
"version": "2ba466d74ed7",
"lessThan": "bdbe483da21f",
"status": "affected",
"versionType": "git"
},
{
"version": "2ba466d74ed7",
"lessThan": "897ac5306bbe",
"status": "affected",
"versionType": "git"
},
{
"version": "2ba466d74ed7",
"lessThan": "2382eae66b19",
"status": "affected",
"versionType": "git"
},
{
"version": "2ba466d74ed7",
"lessThan": "90823f8d9ecc",
"status": "affected",
"versionType": "git"
},
{
"version": "2ba466d74ed7",
"lessThan": "c4a7dc9523b5",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/nilfs2/dir.c"
],
"versions": [
{
"version": "2.6.30",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.30",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.19.313",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.275",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.216",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.157",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.88",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.29",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8.8",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/054f29e9ca05be3906544c5f2a2c7321c30a4243
git.kernel.org/stable/c/2382eae66b196c31893984a538908c3eb7506ff9
git.kernel.org/stable/c/7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1
git.kernel.org/stable/c/897ac5306bbeb83e90c437326f7044c79a17c611
git.kernel.org/stable/c/90823f8d9ecca3d5fa6b102c8e464c62f416975f
git.kernel.org/stable/c/90f43980ea6be4ad903e389be9a27a2a0018f1c8
git.kernel.org/stable/c/bdbe483da21f852c93b22557b146bc4d989260f0
git.kernel.org/stable/c/c4a7dc9523b59b3e73fd522c73e95e072f876b16
lists.debian.org/debian-lts-announce/2024/06/msg00017.html
lists.debian.org/debian-lts-announce/2024/06/msg00020.html