wifi: mac80211: drop stray 'static' from fast-RX rx_result
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drop stray 'static' from fast-RX rx_result ieee80211_invoke_fast_rx() is documented as safe for parallel RX, but its per-invocation rx_result is declared static. Concurrent callers then share one instance and can overwrite each other's result between ieee80211_rx_mesh_data() and the switch on res. That can make a packet that was queued or consumed by ieee80211_rx_mesh_data() fall through into ieee80211_rx_8023(), or make a packet that should continue return as queued. Make res an automatic variable so each invocation keeps its own result.
CVE-2026-46152
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-2026-46152
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": "3468e1e0c639032a603450f0830ccabfa76f5806",
"lessThan": "03584528bfffb195e384698af9148b94e42e3f14",
"versionType": "git"
},
{
"status": "affected",
"version": "3468e1e0c639032a603450f0830ccabfa76f5806",
"lessThan": "1739fc31b4de06c5c78ce0741182770fb079091e",
"versionType": "git"
},
{
"status": "affected",
"version": "3468e1e0c639032a603450f0830ccabfa76f5806",
"lessThan": "e131562d6f2b958148c35c98831b007f47f0e3d3",
"versionType": "git"
},
{
"status": "affected",
"version": "3468e1e0c639032a603450f0830ccabfa76f5806",
"lessThan": "3ef44f96ccc3e06e059dec57842e366f0c4b1893",
"versionType": "git"
},
{
"status": "affected",
"version": "3468e1e0c639032a603450f0830ccabfa76f5806",
"lessThan": "7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba",
"versionType": "git"
}
],
"programFiles": [
"net/mac80211/rx.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.140",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.88",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.30",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.7",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/mac80211/rx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-46152
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40145 · Revision 1
- Added to Heist Feed
- Publisher date