linux: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix off by one in hdmi_14_proce...
CVE-2021-47046 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47046, released February 28, 2024. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix off by one in hdmi_14_process_transaction() The hdcp_i2c_offsets[] array did not have an entry for HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE so it led to an off by one read overflow. I added an entry and copied the 0x0 value for the offset from similar code in drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c. I also declared several of these arrays as having HDCP_MESSAGE_ID_MAX entries. This doesn't change the code, but it's just a belt and suspenders approach to try future proof the code.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.10.38-1 | DEBIAN-CVE-2021-47046 | Feb 28, 2024 |
| linux · Debian 13.5 (trixie) | 5.10.38-1 | DEBIAN-CVE-2021-47046 | Feb 28, 2024 |
| linux · Debian 14 | 5.10.38-1 | DEBIAN-CVE-2021-47046 | Feb 28, 2024 |
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