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)
CVE-2026-53330
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-53330
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "8e5100a575433cc185a2e224280fbd873b6692dd",
"lessThan": "a632474c793b7f2a9bbd3d8e3d0dd7d256989300",
"versionType": "git"
},
{
"status": "affected",
"version": "8e5100a575433cc185a2e224280fbd873b6692dd",
"lessThan": "7c5f2d16a8f4464bf2a719ceb2316b8a6b87a3c0",
"versionType": "git"
},
{
"status": "affected",
"version": "8e5100a575433cc185a2e224280fbd873b6692dd",
"lessThan": "454d3b3d499c18373f8960d31aea48338a3ca9e0",
"versionType": "git"
},
{
"status": "affected",
"version": "8e5100a575433cc185a2e224280fbd873b6692dd",
"lessThan": "dc1490927d79fe9621e29f4a4f5d7b5ccb6aea3e",
"versionType": "git"
},
{
"status": "affected",
"version": "8e5100a575433cc185a2e224280fbd873b6692dd",
"lessThan": "e8b4d37eba05141ee01794fc6b7f2da808cee83b",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/display/dc/dc_dp_types.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/display/dc/dc_dp_types.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53330
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46393 · Revision 1
- Added to Heist Feed
- Publisher date