High
rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix buffer overread in rxgk_do_verify_authenticator() Fix rxgk_do_verify_authenticator() to check the buffer size before checking the nonce.
Announced Source revision 1
Original source ↗CVE-2026-31631
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-2026-31631
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": "9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a",
"lessThan": "794586789800b16dcbe235452494f4223ac80413",
"versionType": "git"
},
{
"status": "affected",
"version": "9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a",
"lessThan": "1c4422d8be81718ecb15d79aedff607323085201",
"versionType": "git"
},
{
"status": "affected",
"version": "9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a",
"lessThan": "f564af387c8c28238f8ebc13314c589d7ba8475d",
"versionType": "git"
}
],
"programFiles": [
"net/rxrpc/rxgk.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.23",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.13",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/rxrpc/rxgk.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31631
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39934 · Revision 1
- Added to Heist Feed
- Publisher date