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: osv:CVE-2026-93803
Kernel
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 5.10.271
Source reference:
/affected/1/ranges5.15.222Source reference:
/affected/1/ranges6.1.189Source reference:
/affected/1/ranges6.6.158Source reference:
/affected/1/ranges6.12.111Source reference:
/affected/1/ranges6.18.53Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "b453872c35cfcbdbf5a794737817f7d4e7b1b579"
},
{
"fixed": "bb18262c19feb690ddde58c70e3ad04bc6fe566e"
},
{
"fixed": "09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82"
},
{
"fixed": "2836a870f612a8a6d9e390d00fa2cf6c90aa5808"
},
{
"fixed": "0b61c465ea62063593bc9ac186871b69e58ae991"
},
{
"fixed": "062840bdc9ee06169b3c371bf66711f1d7ec0bf4"
},
{
"fixed": "c54b643e9a0936d038921c547736574fd7382cea"
},
{
"fixed": "74ed3669f26803b1761c1f55403062bea44c3466"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93803.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.6.14"
},
{
"fixed": "5.10.271"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.222"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.189"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.158"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.111"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.53"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93803.json"
}
}
]- Related CVEs
- CVE-2026-93803
Source reference:
/id
Publisher severity
No explicit severity was provided.
- Event
- #83531 · Revision 1
- Added to Heist Feed
- Publisher date