In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix memory leak during stateful obj update
stateful objects can be updated from the control plane.
The transaction logic allocates a temporary object for this purpose.
The ->init function was called for this object, so plain kfree() leaks
resources. We must call ->destroy function of the object.
nft_obj_destroy does this, but it also decrements the module refcount,
but the update path doesn’t increment it.
To avoid special-casing the update object release, do module_get for
the update case too and release it via nft_obj_destroy().
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"versions": [
{
"version": "d62d0ba97b58",
"lessThan": "53026346a94c",
"status": "affected",
"versionType": "git"
},
{
"version": "d62d0ba97b58",
"lessThan": "7e9880e81d3f",
"status": "affected",
"versionType": "git"
},
{
"version": "d62d0ba97b58",
"lessThan": "e96e204ee6fa",
"status": "affected",
"versionType": "git"
},
{
"version": "d62d0ba97b58",
"lessThan": "34bb90e407e3",
"status": "affected",
"versionType": "git"
},
{
"version": "d62d0ba97b58",
"lessThan": "dad3bdeef45f",
"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/netfilter/nf_tables_api.c"
],
"versions": [
{
"version": "5.4",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.4",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.182",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.103",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.26",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.16.12",
"lessThanOrEqual": "5.16.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.17",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/34bb90e407e3288f610558beaae54ecaa32b11c4
git.kernel.org/stable/c/53026346a94c43f35c32b18804041bc483271d87
git.kernel.org/stable/c/7e9880e81d3fd6a43c202f205717485290432826
git.kernel.org/stable/c/dad3bdeef45f81a6e90204bcc85360bb76eccec7
git.kernel.org/stable/c/e96e204ee6fa46702f6c94c3c69a09e69e0eac52