AI Score
Confidence
Low
EPSS
Percentile
15.5%
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix an NULL dereference bug
The issue here is when this is called from ntfs_load_attr_list(). The
“size” comes from le32_to_cpu(attr->res.data_size) so it can’t overflow
on a 64bit systems but on 32bit systems the “+ 1023” can overflow and
the result is zero. This means that the kmalloc will succeed by
returning the ZERO_SIZE_PTR and then the memcpy() will crash with an
Oops on the next line.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "be71b5cba2e6",
"lessThan": "ae4acad41b0f",
"versionType": "git"
},
{
"status": "affected",
"version": "be71b5cba2e6",
"lessThan": "ec1bedd79758",
"versionType": "git"
},
{
"status": "affected",
"version": "be71b5cba2e6",
"lessThan": "fb7bcd1722bc",
"versionType": "git"
},
{
"status": "affected",
"version": "be71b5cba2e6",
"lessThan": "686820fe141e",
"versionType": "git"
},
{
"status": "affected",
"version": "be71b5cba2e6",
"lessThan": "b2dd7b953c25",
"versionType": "git"
}
],
"programFiles": [
"fs/ntfs3/ntfs_fs.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.15",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "5.15.149",
"versionType": "custom",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.78",
"versionType": "custom",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.17",
"versionType": "custom",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.5",
"versionType": "custom",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/ntfs3/ntfs_fs.h"
],
"defaultStatus": "affected"
}
]
git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2
git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b
git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c
git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6
git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7