CVE-2026-53137
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 HDMI HDCP2 rx_id_list read to buffer size
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Clamp HDMI HDCP2 rx_id_list read to buffer size [Why & How] During HDCP 2.x repeater authentication over HDMI, the driver reads the sink's RxStatus register and extracts a 10-bit message size field (max value 1023). This value is used as the read length for the ReceiverID list without being clamped to the size of the destination buffer rx_id_list[177]. A malicious HDMI repeater could advertise a message size larger than the buffer, causing an out-of-bounds write during the I2C read. Clamp the read length in mod_hdcp_read_rx_id_list() to the size of the rx_id_list buffer, matching the approach already used in the DP branch. (cherry picked from commit 229212219e4247d9486f8ba41ef087358490be09)
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) |
|---|---|---|---|---|---|
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | 3c4444aec06c74fbc05661f370954ac814963c38 | Unavailable | None listed |
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | 91fb41218c413989d8b6c837748751454b452d68 | Unavailable | None listed |
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | 964e50ef7b8f09815a7d05b8326af700f8d5bc96 | Unavailable | None listed |
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | 79e0273272a05fb26f9b1e55bf1a52eefc3b7b35 | Unavailable | None listed |
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | bfba882cfcd08f6540f72f48e786b6404f5d2c5b | Unavailable | None listed |
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | 1906064d50d194a145486e5caf3db3e708b6f6ef | Unavailable | None listed |
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | 98cfb7530ea91d8e5e928285cdce58e1131f6e83 | Unavailable | None listed |
| eff682f83c9c2030761e7536c5d97e1b20f71c15 | affected | git | f0f3981c43b32cadfe373d636d9e9ca522bb3702 | 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) |
|---|---|---|---|---|---|
| 5.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.6 | Unavailable | None listed |
| 5.10.259 | unaffected | semver | Unavailable | 5.10.* | 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 |