wifi: mac80211: don't allow injecting frames wider than the chanctx
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't allow injecting frames wider than the chanctx Frames injected on a monitor interface can carry a radiotap field requesting a bandwidth, which mac80211 passes down to the driver regardless of the the actual operational bandwidth. If the bandwidth requested is too wide, that triggers a warning in hwsim: WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw)) Drop such frames entirely instead since they cannot be sent.
CVE-2026-98329
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-2026-98329
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": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
"lessThan": "a5c715eda066cba5ce3372759188ba8636dca629",
"versionType": "git"
},
{
"status": "affected",
"version": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
"lessThan": "73f48f7e16cadfc74f444ccd10c1d3ae253e2e27",
"versionType": "git"
},
{
"status": "affected",
"version": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
"lessThan": "c69718519a81e87284494d0c6e6eb7bdd834707a",
"versionType": "git"
},
{
"status": "affected",
"version": "646e76bb5daf4ca38438c69ffb72cccb605f3466",
"lessThan": "e14bf37bb2b3853012ff160131d1c6233f7a9cc9",
"versionType": "git"
}
],
"programFiles": [
"include/net/mac80211.h",
"net/mac80211/iface.c",
"net/mac80211/tx.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"include/net/mac80211.h",
"net/mac80211/iface.c",
"net/mac80211/tx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98329
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38408 · Revision 1
- Added to Heist Feed
- Publisher date