CVE-2026-93280greybus: audio: bound the topology section sizes against the fetched size
- 8.8HighCVSS base score
- 0.32%Exploitation in 30 daysEPSS · top 75% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 25 days later
· 25 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.32% · top 75% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43e
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < dd5593aee0a0fb353e1164aff7b65e563fe1f232
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < 6f764363b3173d805be11e59a8f23ecee2d420d5
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < 52daf9de692ebac813d110eb1e677dc0e1f4a5ab
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < d0f6eaba60705bacd9bb4ce48eab50ef3f546777
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < c9191f2e2f35f1209eb2dc24b31129dd47b48c16
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < cfcc5a41a9664eb68023aae4cd0d485b256bd7c7
- affected 184992e305f1de3a3d5fa446da3a2bc76be7c54a – < 33d8c7b794d2a30637c9d3fcb478f1d3222bef1e
- affected 4.9
- unaffected < 4.9
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43e (opens in a new tab)
- https://git.kernel.org/stable/c/dd5593aee0a0fb353e1164aff7b65e563fe1f232 (opens in a new tab)
- https://git.kernel.org/stable/c/6f764363b3173d805be11e59a8f23ecee2d420d5 (opens in a new tab)
- https://git.kernel.org/stable/c/52daf9de692ebac813d110eb1e677dc0e1f4a5ab (opens in a new tab)
- https://git.kernel.org/stable/c/d0f6eaba60705bacd9bb4ce48eab50ef3f546777 (opens in a new tab)
- https://git.kernel.org/stable/c/c9191f2e2f35f1209eb2dc24b31129dd47b48c16 (opens in a new tab)
- https://git.kernel.org/stable/c/cfcc5a41a9664eb68023aae4cd0d485b256bd7c7 (opens in a new tab)
- https://git.kernel.org/stable/c/33d8c7b794d2a30637c9d3fcb478f1d3222bef1e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86152 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-93280)Record last updated .