CVE-2021-47348
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/amd/display: Avoid HDCP over-read and corruption
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid HDCP over-read and corruption Instead of reading the desired 5 bytes of the actual target field, the code was reading 8. This could result in a corrupted value if the trailing 3 bytes were non-zero, so instead use an appropriately sized and zero-initialized bounce buffer, and read only 5 bytes before casting to u64.
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) |
|---|---|---|---|---|---|
| 4c283fdac08abf3211533f70623c90a34f41d08d | affected | git | c5b518f4b98dbb2bc31b6a55e6aaa1e0e2948f2e | Unavailable | None listed |
| 4c283fdac08abf3211533f70623c90a34f41d08d | affected | git | 44c7c901cb368a9f2493748f213b247b5872639f | Unavailable | None listed |
| 4c283fdac08abf3211533f70623c90a34f41d08d | affected | git | 3b2b93a485fb7a970bc8b5daef16f4cf579d172f | Unavailable | None listed |
| 4c283fdac08abf3211533f70623c90a34f41d08d | affected | git | 06888d571b513cbfc0b41949948def6cb81021b2 | 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) |
|---|---|---|---|---|---|
| 5.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.5 | Unavailable | None listed |
| 5.10.51 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.12.18 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13.3 | unaffected | semver | Unavailable | 5.13.* | None listed |
| 5.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |