net: prestera: validate firmware header length
CVE-2026-74693 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-74693, released August 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
In the Linux kernel, the following vulnerability has been resolved: net: prestera: validate firmware header length prestera_fw_hdr_parse() reads the firmware header before checking that the firmware image contains that header. Reject images shorter than struct prestera_fw_header before decoding the magic and version fields.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.187-1 | DEBIAN-CVE-2026-74693 | Aug 27, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.105-1 | DEBIAN-CVE-2026-74693 | Aug 27, 2026 |
| linux · Debian 14 | 7.1.9-1 | DEBIAN-CVE-2026-74693 | Aug 27, 2026 |
| linux-6.12 · Debian 12.15 (bookworm) | 6.12.107-1~deb12u1 | DEBIAN-CVE-2026-74693 | Aug 27, 2026 |
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