wifi: libipw: reject too-short association responses
In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: reject too-short association responses libipw_handle_assoc_resp() reads the capability, status and aid fields of the 30-byte association response prefix and then computes the information element length as stats->len - sizeof(*frame) stats->len is a u16 and sizeof() has type size_t, so the subtraction is evaluated as size_t and wraps instead of going negative. Truncating that to the u16 length parameter of libipw_parse_info_param() turns a frame shorter than the fixed fields into a length near 64 KiB, and the parser then reads past the receive buffer. Both the ipw2100 and ipw2200 management receive paths reach this function having established only that the frame carries the generic 24-byte three-address header. Reject the frame before any fixed field is touched. Found by an AI-assisted review of length arithmetic in management frame parsers. Verified with a KUnit case under Generic KASAN on arm64 under QEMU; I do not have the hardware, so it is not tested on a real device.
CVE-2026-98348
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-2026-98348
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": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "766268b429ae26d8ca599031fa962b0fe4673120",
"versionType": "git"
},
{
"status": "affected",
"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "d70bdb84cf1782039384c1ffa7a18b0303c286a7",
"versionType": "git"
},
{
"status": "affected",
"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "400b89217058fac672134a0d4092c8493dadb8ad",
"versionType": "git"
},
{
"status": "affected",
"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "46aa75291056b6dc5faaf956dffdb3e9662477b0",
"versionType": "git"
},
{
"status": "affected",
"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "e3025ecdb2057f866c09e059fc1466e81d6f243e",
"versionType": "git"
},
{
"status": "affected",
"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "14cb425ba1f3a5d849e3bbc3d02d84e0ae195dbb",
"versionType": "git"
},
{
"status": "affected",
"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "af1b69be19c34e28c0ae54bee954b58cd076969a",
"versionType": "git"
},
{
"status": "affected",
"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6",
"lessThan": "adb7118b7d2cfd7e8213c17d7d2829f353017754",
"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": "2.6.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.15",
"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": "6.12.112",
"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": [
"drivers/net/wireless/intel/ipw2x00/libipw_rx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98348
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38428 · Revision 1
- Added to Heist Feed
- Publisher date