CVE-2026-53330drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()
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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)
- CVSS
- 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 8e5100a575433cc185a2e224280fbd873b6692dd before a632474c793b7f2a9bbd3d8e3d0dd7d256989300; 8e5100a575433cc185a2e224280fbd873b6692dd builds before 7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0; from 8e5100a575433cc185a2e224280fbd873b6692dd before 454d3b3d499c18373f8960d31aea48338a3ca9e0; from 8e5100a575433cc185a2e224280fbd873b6692dd before dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e; from 8e5100a575433cc185a2e224280fbd873b6692dd before e8b4d37eba05141ee01794fc6b7f2da808cee83b | CNA record |
linux linux_kernel linux:linux_kernel | from 5.6 before 6.18.36; from 6.19 before 7.0.13; 7.1; 7.1; 7.1; 7.1; 7.1; 7.1 | NVD |
References
- https://git.kernel.org/stable/c/a632474c793b7f2a9bbd3d8e3d0dd7d256989300
- https://git.kernel.org/stable/c/7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0
- https://git.kernel.org/stable/c/454d3b3d499c18373f8960d31aea48338a3ca9e0patch
- https://git.kernel.org/stable/c/dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3epatch
- https://git.kernel.org/stable/c/e8b4d37eba05141ee01794fc6b7f2da808cee83bpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.