wifi: mac80211: fix MLE defragmentation
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix MLE defragmentation If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to the defragmented copy, but the original elements. This is incorrect for two reasons: - if the original defragmentation was needed, it will not find the correct data - if the original frame is at a higher address, the parsing will potentially overrun the heap data (though given the layout of the buffers, only into the new defragmentation buffer, and then it has to stop and fail once that's filled with copied data. Fix it by tracking the container along with the pointer and in doing so also unify the two almost identical defragmentation routines.
CVE-2026-64515
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-2026-64515
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": "4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff",
"lessThan": "1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4",
"versionType": "git"
},
{
"status": "affected",
"version": "4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff",
"lessThan": "55c479aae99b120489a432db9c717484e523dfd6",
"versionType": "git"
},
{
"status": "affected",
"version": "4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff",
"lessThan": "722b3f86df80644463d29fe5451e30a617f74500",
"versionType": "git"
},
{
"status": "affected",
"version": "4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff",
"lessThan": "a74e893f30db64cdce0fc7a96d3baa417bcd55f5",
"versionType": "git"
}
],
"programFiles": [
"net/mac80211/parse.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.92",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.34",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.11",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/mac80211/parse.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-64515
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #41061 · Revision 1
- Added to Heist Feed
- Publisher date