drm/gud: NUL-terminate TV mode names read from the device
In the Linux kernel, the following vulnerability has been resolved: drm/gud: NUL-terminate TV mode names read from the device gud_connector_add_tv_mode() reads a buffer of fixed-size mode names from the USB device and passes pointers into it to drm_mode_create_tv_properties_legacy(), which calls strlen() on each one. Nothing guarantees the device NUL-terminates a name, so strlen() can run past the end of a slot and, for the last mode, past the end of the allocation. Terminate each name at the end of its slot before use.
CVE-2026-89817
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-2026-89817
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": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2",
"lessThan": "08c8ec28547987e55a90c662f8795e05c2925498",
"versionType": "git"
},
{
"status": "affected",
"version": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2",
"lessThan": "9096edfd6f2edbc79612b482547e0972edbcfe4b",
"versionType": "git"
},
{
"status": "affected",
"version": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2",
"lessThan": "89210cb5ff8fdbe055c97ac688be2268f6c815ae",
"versionType": "git"
},
{
"status": "affected",
"version": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2",
"lessThan": "d0f3312f7800eb0e00d1264f66104c788f43dd69",
"versionType": "git"
},
{
"status": "affected",
"version": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2",
"lessThan": "b86438a5c6b0250ccb07dd380184d1e70e0dea6c",
"versionType": "git"
},
{
"status": "affected",
"version": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2",
"lessThan": "6ea61f1d4cbaa0db937e31bffc041fb8afeacf52",
"versionType": "git"
},
{
"status": "affected",
"version": "40e1a70b4aedf2859a1829991b48ef0ebe650bf2",
"lessThan": "500cb24cd61bad8a2747ddfc49b7034899c82d94",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/gud/gud_connector.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.5",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/gud/gud_connector.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89817
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36276 · Revision 1
- Added to Heist Feed
- Publisher date