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Back to active CVEs
High · CVSS 7.1CVE-2026-53203

accel/ivpu: Add buffer overflow check in MS get_info_ioctlCVE-2026-53203

Answer in brief

CVE-2026-53203 records a High severity (CVSS 7.1) vulnerability in accel/ivpu: Add buffer overflow check in MS get_info_ioctl. The current sources do not mark it as known exploited. The current feed maps Red Hat/kernel (generic), Red Hat/kernel-rt (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 25, 2026Updated Oct 19, 2026Source checked Nov 4, 2026First seen by HOL Jun 25, 2026Material review Oct 19, 2026
Upstream Advisory

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-120, CWE-787
Source
CVE List V5
Source checked
Nov 4, 2026
References
7 linked sources
Open source record

Key facts

Risk
High · CVSS 7.1
Exploitation
Not marked as known exploited
Affected software
11 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/kernel (generic), Red Hat/kernel-rt (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/kernelgeneric*Not reported
Red Hat/kernel-rtgeneric*Not reported
Linux/Linuxgeneric>=cdfad4db7756563db7d458216d9e3c2651dddc7d <d3c12ed33e8923f3090909a1738f3e59292996a6 || >=cdfad4db7756563db7d458216d9e3c2651dddc7d <fa598556ecef412edcb391f144b7642e18fdfd45 || >=cdfad4db7756563db7d458216d9e3c2651dddc7d <4e5047cc94bea1cc7b670b7f503358e9af0542df || >=cdfad4db7756563db7d458216d9e3c2651dddc7d <fb176425837693f50c5c9fc8db6fbb04af22bd0ad3c12ed33e8923f3090909a1738f3e59292996a6, fa598556ecef412edcb391f144b7642e18fdfd45, 4e5047cc94bea1cc7b670b7f503358e9af0542df, fb176425837693f50c5c9fc8db6fbb04af22bd0a
Linux/Linuxgeneric6.11Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/kernel, Red Hat/kernel-rt, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to d3c12ed33e8923f3090909a1738f3e59292996a6 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 25, 2026

    Evidence: source:cvelist:source_dates:source-dates:record
  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record
  3. First seen by HOL

    Jun 25, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencesecurity.access.redhat.com
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add buffer overflow check in MS get_info_ioctl Add validation that the info size returned from the metric stream info query is not exceeded when checked against the allocated buffer size. If the firmware returns a size larger than the buffer, reject the operation with -EOVERFLOW instead of proceeding with an incorrect buffer copy.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • h2o: buffer overflow when using the %{error}x log directiveAlso CWE-787
  • VeraCrypt: Heap overflow and out-of-bounds read in Serializable deserialization (elevated Core service input path)Also CWE-787