UnratedFix available
net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() rule_locs is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rule_locs to avoid NULL pointer dereference.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.326, 4.19.295, 5.10.195, 5.15.132, 5.4.257, 6.1.54, 6.5.4
- CVEs
- CVE-2023-54240
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 02:27 UTC · Revision 1
Source evidence
net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()
core-osv · Original sourcePublished 30 Dec 2025, 12:11 UTC
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() rule_locs is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rule_locs to avoid NULL pointer dereference.
osv:CVE-2023-54240
Kernel
Fixed versions: 4.14.326, 4.19.295, 5.4.257, 5.10.195, 5.15.132, 6.1.54, 6.5.4
Complete source record
{
"id": "2e2b3399df2ed3b51c645f17acba755d6d5afb57ba8a56b0320469befbb448e1",
"url": "https://osv.dev/vulnerability/CVE-2023-54240",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() rule_locs is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rule_locs to avoid NULL pointer dereference.",
"evidence": "osv:CVE-2023-54240",
"products": [
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"severity": "unknown",
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"aliases": [
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{
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{
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"events": [
{
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{
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{
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{
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]
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54240.json"
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],
"modified": "2026-10-28T02:30:45.912711846Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/653fbddbdfc6673bba01b13dae5a4384ad8f92ec",
"https://git.kernel.org/stable/c/751b2e22a188b0c306029d094da29b6b8de31430",
"https://git.kernel.org/stable/c/75f2de75c1182e80708c932418e4895dbc88b68f",
"https://git.kernel.org/stable/c/7776591e5ae2befff86579f68916a171971c6aab",
"https://git.kernel.org/stable/c/e4c79810755f66c9a933ca810da2724133b1165a",
"https://git.kernel.org/stable/c/fe0195fe48f85182bc7e7eabcad925bd3cbc10f5",
"https://git.kernel.org/stable/c/ff5faed5f5487b0fd2b640ba1304f82a5ebaab42",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54240.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-54240",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54240.json"
}
},
"related_cves": [
{
"value": "CVE-2023-54240",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 514270,
"published_at": "2025-12-30T12:11:29.039+00:00"
}