drm/panthor: fix firmware control interface bounds checks
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: fix firmware control interface bounds checks panthor_init_cs_iface() and panthor_init_csg_iface() validate firmware control interface offsets with 32-bit arithmetic and the size of the host wrapper structures. The offsets are derived from firmware-provided strides, so the arithmetic can wrap before the bounds check, and the host wrapper size is not the size of the firmware control interface being mapped. Use 64-bit arithmetic for the computed offsets and validate against the actual firmware control interface structure sizes with subtraction-based bounds checks. Also validate that the shared section is large enough for the global control interface before using it.
CVE-2026-89825
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-2026-89825
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": "2718d91816eeed03c09c8abe872e45f59078768c",
"lessThan": "33ae55809aee9b4dca1d00cdee35b527f2bf8626",
"versionType": "git"
},
{
"status": "affected",
"version": "2718d91816eeed03c09c8abe872e45f59078768c",
"lessThan": "80c9528661c774f899281c9a72011208ff39929e",
"versionType": "git"
},
{
"status": "affected",
"version": "2718d91816eeed03c09c8abe872e45f59078768c",
"lessThan": "3e5c7cddc0073eef6f9bb373189b11a969f1f6f6",
"versionType": "git"
},
{
"status": "affected",
"version": "2718d91816eeed03c09c8abe872e45f59078768c",
"lessThan": "6a47f9fd2d970674ed9dedc52fc7ab76fd015785",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/panthor/panthor_fw.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.10",
"versionType": "semver"
},
{
"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/panthor/panthor_fw.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89825
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #36283 · Revision 1
- Added to Heist Feed
- Publisher date