CVE-2026-93280

In the Linux kernel, the following vulnerability has been resolved: greybus: audio: bound the topology section sizes against the fetched size gb_audio_gb_get_topology() fetches a topology blob of a module-supplied size, and gbaudio_tplg_parse_data() then walks it by adding the module-supplied size_dais, size_controls and size_widgets fields to form the control, widget and route section offsets. Those le32 sizes are never checked against the fetched blob, so a module reporting a small topology size but large section sizes makes the offsets point past the allocation, and parsing reads out of bounds. Reject a topology whose section sizes do not fit within the fetched size before it is parsed.

CVSS 3.1

8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-25)

Published

2026-09-24

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/33d8c7b794d2a30637c9d3fcb478f1d3222bef1e
• https://git.kernel.org/stable/c/52daf9de692ebac813d110eb1e677dc0e1f4a5ab
• https://git.kernel.org/stable/c/6f764363b3173d805be11e59a8f23ecee2d420d5
• https://git.kernel.org/stable/c/ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43e
• https://git.kernel.org/stable/c/c9191f2e2f35f1209eb2dc24b31129dd47b48c16

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