High 8.8Published Sep 24, 2026

CVE-2026-93280greybus: audio: bound the topology section sizes against the fetched size

Updated under an hour ago (Oct 27, 2026, 8:23 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 184992e305f1de3a3d5fa446da3a2bc76be7c54a before ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43e; from 184992e305f1de3a3d5fa446da3a2bc76be7c54a before dd5593aee0a0fb353e1164aff7b65e563fe1f232; 184992e305f1de3a3d5fa446da3a2bc76be7c54a builds before 6f764363b3173d805be11e59a8f23ecee2d420d5; 184992e305f1de3a3d5fa446da3a2bc76be7c54a builds before 52daf9de692ebac813d110eb1e677dc0e1f4a5ab; from 184992e305f1de3a3d5fa446da3a2bc76be7c54a before d0f6eaba60705bacd9bb4ce48eab50ef3f546777; from 184992e305f1de3a3d5fa446da3a2bc76be7c54a before c9191f2e2f35f1209eb2dc24b31129dd47b48c16; from 184992e305f1de3a3d5fa446da3a2bc76be7c54a before cfcc5a41a9664eb68023aae4cd0d485b256bd7c7; 184992e305f1de3a3d5fa446da3a2bc76be7c54a builds before 33d8c7b794d2a30637c9d3fcb478f1d3222bef1e	CNA record

References

References

https://git.kernel.org/stable/c/ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43e
https://git.kernel.org/stable/c/dd5593aee0a0fb353e1164aff7b65e563fe1f232
https://git.kernel.org/stable/c/6f764363b3173d805be11e59a8f23ecee2d420d5
https://git.kernel.org/stable/c/52daf9de692ebac813d110eb1e677dc0e1f4a5ab
https://git.kernel.org/stable/c/d0f6eaba60705bacd9bb4ce48eab50ef3f546777
https://git.kernel.org/stable/c/c9191f2e2f35f1209eb2dc24b31129dd47b48c16
https://git.kernel.org/stable/c/cfcc5a41a9664eb68023aae4cd0d485b256bd7c7
https://git.kernel.org/stable/c/33d8c7b794d2a30637c9d3fcb478f1d3222bef1e

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.