net: hsr: fix potential OOB access in supervision frame handling
In the Linux kernel, the following vulnerability has been resolved: net: hsr: fix potential OOB access in supervision frame handling Ensure the entire TLV header is linearized before access by adding sizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this, a truncated frame could cause an out-of-bounds access.
CVE-2026-64000
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-2026-64000
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": "eafaa88b3eb7f28aecb222281655473431d3ef2e",
"lessThan": "09a37dca090c55ffb1a33f52d8667f1c2367ef48",
"versionType": "git"
},
{
"status": "affected",
"version": "eafaa88b3eb7f28aecb222281655473431d3ef2e",
"lessThan": "a4b64f3e9c7b8259f7dd251a0313420ba7c01852",
"versionType": "git"
},
{
"status": "affected",
"version": "eafaa88b3eb7f28aecb222281655473431d3ef2e",
"lessThan": "71c986c0ba45b7dc574fae27c83e7b6671556f37",
"versionType": "git"
},
{
"status": "affected",
"version": "eafaa88b3eb7f28aecb222281655473431d3ef2e",
"lessThan": "fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7",
"versionType": "git"
},
{
"status": "affected",
"version": "eafaa88b3eb7f28aecb222281655473431d3ef2e",
"lessThan": "78607a6854a22a2502f68092202e75a39af4865d",
"versionType": "git"
},
{
"status": "affected",
"version": "eafaa88b3eb7f28aecb222281655473431d3ef2e",
"lessThan": "f229426072fc865654a60978bb7fda790a051ff3",
"versionType": "git"
}
],
"programFiles": [
"net/hsr/hsr_forward.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.93",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.35",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.12",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/hsr/hsr_forward.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-64000
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #40926 · Revision 1
- Added to Heist Feed
- Publisher date