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CVE-2026-53330

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

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)
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 454d3b3d499c18373f8960d31aea48338a3ca9e0
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < e8b4d37eba05141ee01794fc6b7f2da808cee83b
Status affected
Version 0
Version < 6.18.36
Status affected
Version 0
Version < 7.0.13
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version <= 6.18.*
Version 6.18.36
Status unaffected
Version <= 7.0.*
Version 7.0.13
Status unaffected
Version <= *
Version 7.1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.061
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/454d3b3d499c18373f8960d31aea48338a3ca9e0
https://git.kernel.org/stable/c/dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e
https://git.kernel.org/stable/c/e8b4d37eba05141ee01794fc6b7f2da808cee83b