In the Linux kernel, the following vulnerability has been resolved:
ax25: Fix reference count leak issue of net_device
There is a reference count leak issue of the object “net_device” in
ax25_dev_device_down(). When the ax25 device is shutting down, the
ax25_dev_device_down() drops the reference count of net_device one
or zero times depending on if we goto unlock_put or not, which will
cause memory leak.
In order to solve the above issue, decrease the reference count of
net_device after dev->ax25_ptr is set to null.
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/ax25/ax25_dev.c"
],
"versions": [
{
"version": "d01ffb9eee4a",
"lessThan": "3ec437f9bbae",
"status": "affected",
"versionType": "git"
},
{
"version": "d01ffb9eee4a",
"lessThan": "965d940fb741",
"status": "affected",
"versionType": "git"
},
{
"version": "d01ffb9eee4a",
"lessThan": "8bad3a20a27b",
"status": "affected",
"versionType": "git"
},
{
"version": "d01ffb9eee4a",
"lessThan": "eef95df9b752",
"status": "affected",
"versionType": "git"
},
{
"version": "d01ffb9eee4a",
"lessThan": "36e56b1b002b",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/ax25/ax25_dev.c"
],
"versions": [
{
"version": "5.17",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.17",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.93",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.33",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8.12",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9.3",
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.10",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2
git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad
git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a
git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b
git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9