wifi: libipw: fix key index receive bound checks
In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: fix key index receive bound checks libipw_rx() reads skb->data[hdrlen + 3] to extract the WEP key index in both the software-decrypt key selection path and the hardware-decrypted IV/ICV strip path. In both places the existing guard only checks skb->len >= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the byte at hdrlen + 3. Require hdrlen + 4 bytes before reading that item in both paths. This is a local source-boundary check only; it does not change the key index semantics.
CVE-2026-93803
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-2026-93803
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": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
"lessThan": "bb18262c19feb690ddde58c70e3ad04bc6fe566e",
"versionType": "git"
},
{
"status": "affected",
"version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
"lessThan": "09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82",
"versionType": "git"
},
{
"status": "affected",
"version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
"lessThan": "2836a870f612a8a6d9e390d00fa2cf6c90aa5808",
"versionType": "git"
},
{
"status": "affected",
"version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
"lessThan": "0b61c465ea62063593bc9ac186871b69e58ae991",
"versionType": "git"
},
{
"status": "affected",
"version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
"lessThan": "062840bdc9ee06169b3c371bf66711f1d7ec0bf4",
"versionType": "git"
},
{
"status": "affected",
"version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
"lessThan": "c54b643e9a0936d038921c547736574fd7382cea",
"versionType": "git"
},
{
"status": "affected",
"version": "b453872c35cfcbdbf5a794737817f7d4e7b1b579",
"lessThan": "74ed3669f26803b1761c1f55403062bea44c3466",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/intel/ipw2x00/libipw_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": "2.6.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/intel/ipw2x00/libipw_rx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93803
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8280 · Revision 1
- Added to Heist Feed
- Publisher date