CVE-2026-53136
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/amd/display: Clamp VBIOS HDMI retimer register count to array size
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size [Why & How] The VBIOS integrated info tables (v1_11 and v2_1) contain HdmiRegNum and Hdmi6GRegNum fields that are used as loop bounds when copying retimer I2C register settings into fixed-size arrays (dp*_ext_hdmi_reg_settings[9] and dp*_ext_hdmi_6g_reg_settings[3]). These u8 fields are not validated before use, so a malformed VBIOS can specify values up to 255, causing an out-of-bounds heap write during driver probe. Clamp each register count to the destination array size using min_t() before the copy loops, in both get_integrated_info_v11() and get_integrated_info_v2_1(). (cherry picked from commit 5a7f0ef90195940c54b0f5bb85b87da55f038c69)
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a | affected | git | 029571d51140650783be4fb98fe7cb4754752086 | Unavailable | None listed |
| 1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a | affected | git | 5f8b39452fb16f507c9e4d8b4a83ce27e893307c | Unavailable | None listed |
| 1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a | affected | git | 4d1c3c26c2ab1842e139e61983395d64bd2e518b | Unavailable | None listed |
| 1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a | affected | git | d6be8e59af412623e3d874be3a048406c0edfe60 | Unavailable | None listed |
| 1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a | affected | git | 3f32d52ec604c659725d865cf8cc6a17a33f9c6a | Unavailable | None listed |
| 1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a | affected | git | 8aaa7e317fbd4beb9c6a9f77aa4cf52fae78b117 | Unavailable | None listed |
| 1e8635ea0ea370bf4f0f2b2f1b3eb61474dd962a | affected | git | fb0707ce00eef4e2d60c3020e1c0432739703e4a | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.15 | Unavailable | None listed |
| 5.15.210 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.176 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.143 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.94 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.36 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.13 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |