net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling
In the Linux kernel, the following vulnerability has been resolved: net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling Move the freeing of the dummy net_device from mtk_free_dev() to mtk_remove(). Previously, if alloc_netdev_dummy() failed in mtk_probe(), eth->dummy_dev would be NULL. The error path would then call mtk_free_dev(), which in turn called free_netdev() assuming dummy_dev was allocated (but it was not), potentially causing a NULL pointer dereference. By moving free_netdev() to mtk_remove(), we ensure it's only called when mtk_probe() has succeeded and dummy_dev is fully allocated. This addresses a potential NULL pointer dereference detected by Smatch[1].
CVE-2024-42282
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-42282
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "d5d57501f543f48df8b76a4af59def9a894b396f",
"lessThan": "81e82340170ae82f8cc28e76c13a0069c0d47cb4",
"versionType": "git"
},
{
"status": "affected",
"version": "b209bd6d0bffb8991aba568e2d9a892c86a1a43c",
"lessThan": "af6bd5c9901b13a26eaf4d57d97a813297791596",
"versionType": "git"
},
{
"status": "affected",
"version": "b209bd6d0bffb8991aba568e2d9a892c86a1a43c",
"lessThan": "16f3a28cf5f876a7f3550d8f4c870a7b41bcfaef",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/mediatek/mtk_eth_soc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.10.3",
"versionType": "semver",
"lessThanOrEqual": "6.10.*"
},
{
"status": "unaffected",
"version": "6.11",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/mediatek/mtk_eth_soc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-42282
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8232 · Revision 1
- Added to Heist Feed
- Publisher date