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VulnerabilityPublished Updated

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

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Authoritative record:CVE-2026-53330· Medium

Not known to be exploited · CVSS 7.1 Medium · fixed in e8b4d37eba05141ee01794fc6b7f2da808cee83b : update Linux kernel when convenient.

Data as of 30 Oct 2026, 16:33 UTC

CVSS 3.1 base score
7.1Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
Patch
Available – fixed in e8b4d37eba05141ee01794fc6b7f2da808cee83b, dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e, a632474c793b7f2a9bbd3d8e3d0dd7d256989300 +3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 8e5100a575433cc185a2e224280fbd873b6692dd, < e8b4d37eba05141ee01794fc6b7f2da808cee83b
Fixed in
  • e8b4d37eba05141ee01794fc6b7f2da808cee83b
LinuxLinuxAffected
  • ≥ 8e5100a575433cc185a2e224280fbd873b6692dd, < dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e
Fixed in
  • dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e
LinuxLinuxAffected
  • ≥ 8e5100a575433cc185a2e224280fbd873b6692dd, < a632474c793b7f2a9bbd3d8e3d0dd7d256989300
Fixed in
  • a632474c793b7f2a9bbd3d8e3d0dd7d256989300
LinuxLinuxAffected
  • ≥ 8e5100a575433cc185a2e224280fbd873b6692dd, < 454d3b3d499c18373f8960d31aea48338a3ca9e0
Fixed in
  • 454d3b3d499c18373f8960d31aea48338a3ca9e0
LinuxLinuxAffected
  • ≥ 8e5100a575433cc185a2e224280fbd873b6692dd, < 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0
Fixed in
  • 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0
LinuxLinuxAffected
  • ≥ 8e5100a575433cc185a2e224280fbd873b6692dd, < 7b310c6d82d782282085c9728dfe69e07d185b6c
Fixed in
  • 7b310c6d82d782282085c9728dfe69e07d185b6c

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)

References

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