net: arp: terminate device name before lookup
In the Linux kernel, the following vulnerability has been resolved: net: arp: terminate device name before lookup The ARP ioctl copies a user-provided struct arpreq into a stack object. Its arp_dev field may contain IFNAMSIZ bytes without a NUL terminator. Such input is passed to dev_get_by_name_rcu() or __dev_get_by_name(), where strcmp() can read past the end of the stack object when a matching alternative interface name exists. Terminate the field before the lookup to prevent the out-of-bounds read.
CVE-2026-98495
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-2026-98495
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": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "ae6d704dbf9542b0a0830ec91a2db4f30307e7d8",
"versionType": "git"
},
{
"status": "affected",
"version": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "47107491b48ceef0a2faa7a010cfa961f211ef9f",
"versionType": "git"
},
{
"status": "affected",
"version": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "7389757d88f54237951d7497d9c4dae7cc6d64be",
"versionType": "git"
},
{
"status": "affected",
"version": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b",
"versionType": "git"
},
{
"status": "affected",
"version": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "414bbad9928598904313299ac9e037a73f520be1",
"versionType": "git"
},
{
"status": "affected",
"version": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "ba664d83638640cf454b65167339cbf20dfd6f10",
"versionType": "git"
},
{
"status": "affected",
"version": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "35e716a70733472ede300540082d64c33bf3b4c9",
"versionType": "git"
},
{
"status": "affected",
"version": "36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc",
"lessThan": "d8b6529e80bcb4fb8177121404cbb3377acaebd2",
"versionType": "git"
}
],
"programFiles": [
"net/ipv4/arp.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.5",
"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": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/ipv4/arp.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98495
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38534 · Revision 1
- Added to Heist Feed
- Publisher date