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  4. CVE 2026 53330 drmamddisplay fix out of bounds read in
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Back to active CVEs
High · CVSS 7.1CVE-2026-53330

drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()CVE-2026-53330

Answer in brief

CVE-2026-53330 records a High severity (CVSS 7.1) vulnerability in drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (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 Jul 1, 2026Updated Oct 30, 2026Source checked Nov 5, 2026First seen by HOL Jul 1, 2026Material review Oct 30, 2026
Upstream Advisory

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Nov 5, 2026
References
6 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 Linux/Linux (generic), Linux/Linux (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
Linux/Linuxgeneric>=8e5100a575433cc185a2e224280fbd873b6692dd <454d3b3d499c18373f8960d31aea48338a3ca9e0 || >=8e5100a575433cc185a2e224280fbd873b6692dd <dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e || >=8e5100a575433cc185a2e224280fbd873b6692dd <e8b4d37eba05141ee01794fc6b7f2da808cee83b454d3b3d499c18373f8960d31aea48338a3ca9e0, dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e, e8b4d37eba05141ee01794fc6b7f2da808cee83b
Linux/Linuxgeneric5.6Not reported
Linux/Linuxgeneric>=8e5100a575433cc185a2e224280fbd873b6692dd <a632474c793b7f2a9bbd3d8e3d0dd7d256989300 || >=8e5100a575433cc185a2e224280fbd873b6692dd <7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0 || >=8e5100a575433cc185a2e224280fbd873b6692dd <454d3b3d499c18373f8960d31aea48338a3ca9e0 || >=8e5100a575433cc185a2e224280fbd873b6692dd <dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e || >=8e5100a575433cc185a2e224280fbd873b6692dd <e8b4d37eba05141ee01794fc6b7f2da808cee83ba632474c793b7f2a9bbd3d8e3d0dd7d256989300, 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0, 454d3b3d499c18373f8960d31aea48338a3ca9e0, dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e, e8b4d37eba05141ee01794fc6b7f2da808cee83b
Linux/Linuxgeneric>=8e5100a575433cc185a2e224280fbd873b6692dd <7b310c6d82d782282085c9728dfe69e07d185b6c || >=8e5100a575433cc185a2e224280fbd873b6692dd <a632474c793b7f2a9bbd3d8e3d0dd7d256989300 || >=8e5100a575433cc185a2e224280fbd873b6692dd <7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0 || >=8e5100a575433cc185a2e224280fbd873b6692dd <454d3b3d499c18373f8960d31aea48338a3ca9e0 || >=8e5100a575433cc185a2e224280fbd873b6692dd <dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e || >=8e5100a575433cc185a2e224280fbd873b6692dd <e8b4d37eba05141ee01794fc6b7f2da808cee83b7b310c6d82d782282085c9728dfe69e07d185b6c, a632474c793b7f2a9bbd3d8e3d0dd7d256989300, 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0, 454d3b3d499c18373f8960d31aea48338a3ca9e0, dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e, e8b4d37eba05141ee01794fc6b7f2da808cee83b

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 454d3b3d499c18373f8960d31aea48338a3ca9e0; Linux/Linux to a632474c793b7f2a9bbd3d8e3d0dd7d256989300; Linux/Linux to 7b310c6d82d782282085c9728dfe69e07d185b6c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jul 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jul 1, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval() [Why & How] The aux_rd_interval array in struct dc_lttpr_caps is declared with MAX_REPEATER_CNT - 1 (7) elements, indexed 0..6. However, the offset parameter passed to dp_get_eq_aux_rd_interval() can be as large as MAX_REPEATER_CNT (8) when a sink reports 8 LTTPR repeaters via DPCD. This leads to an out-of-bounds read of aux_rd_interval[7] when offset is 8. Fix this by growing aux_rd_interval to MAX_REPEATER_CNT elements to accommodate the full range of valid repeater counts defined by the DP spec. (cherry picked from commit a55a458a8df37a65ffda5cf721d554a8f74f6b04)

Quoted source text, attributed separately from HOL analysis.