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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Feb 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 28, 2024 |
| Suse | — | Upgrade reiserfs-kmp-defaultUpgrade kernel-64kb-develUpgrade kernel-obs-buildUpgrade kernel-preemptUpgrade kernel-preempt-develUpgrade kernel-develUpgrade kernel-sourceUpgrade kernel-64kbUpgrade kernel-default-develUpgrade kernel-docsUpgrade kernel-macrosUpgrade kernel-zfcpdumpUpgrade kernel-symsUpgrade kernel-defaultUpgrade kernel-default-base | Aug 9, 2024 | Feb 28, 2024 |
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