- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% 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: drm/bridge: tc358767: clamp the reported AUX read size to the request tc_aux_transfer() clamps an AUX read to the payload limit: size_t size = min_t(size_t, DP_AUX_MAX_PAYLOAD_BYTES - 1, msg->size); After the transfer it replaces size with the byte count the controller reports in AUX_BYTES: if (size) size = FIELD_GET(AUX_BYTES, auxstatus); AUX_BYTES is GENMASK(15, 8), so it can be up to 255. Nothing clamps it back to the request. tc_aux_read_data() reads that many bytes into the 16-byte auxrdata stack buffer, then copies them into the caller buffer. A reported count of 255 makes the read run to 256 bytes and overruns both. The controller should never report more than it was asked to transfer, so this is defense in depth rather than a live hole. The reported count is only lightly trusted, and the check is cheap. Clamp it back to the request, the same way ti-sn65dsi86 does in commit aca58eac52b8 ("drm/bridge: ti-sn65dsi86: Never store more than msg->size bytes in AUX xfer").
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < ebf00c51c9ac9188e2806a2b842418805ee879be
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < 424b762cc26d512e3e7421e57e41b4b55be2400b
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < dd6274706bec30d005bff0587a4262d01dc2775a
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < 982caa744fce79d18f2920382aaeb0da821a6e73
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < 33c0b072e31dee98a754d9bd01800359dfeb9e8f
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < 57c567e0e8aa76f6e3e8f39d7f40c20bc37e76af
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < 9ff718df547372d70ca20ad8e66a3fb1300936b2
- affected 12dfe7c4d9c53442efcb4113cff505f60d654906 – < ec6444a00c49e6c2b5e9a507272a28126677f9ee
- affected 5.4
- unaffected < 5.4
- 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/ebf00c51c9ac9188e2806a2b842418805ee879be (opens in a new tab)
- https://git.kernel.org/stable/c/424b762cc26d512e3e7421e57e41b4b55be2400b (opens in a new tab)
- https://git.kernel.org/stable/c/dd6274706bec30d005bff0587a4262d01dc2775a (opens in a new tab)
- https://git.kernel.org/stable/c/982caa744fce79d18f2920382aaeb0da821a6e73 (opens in a new tab)
- https://git.kernel.org/stable/c/33c0b072e31dee98a754d9bd01800359dfeb9e8f (opens in a new tab)
- https://git.kernel.org/stable/c/57c567e0e8aa76f6e3e8f39d7f40c20bc37e76af (opens in a new tab)
- https://git.kernel.org/stable/c/9ff718df547372d70ca20ad8e66a3fb1300936b2 (opens in a new tab)
- https://git.kernel.org/stable/c/ec6444a00c49e6c2b5e9a507272a28126677f9ee (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-2026-82177 (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-2026-93067)Record last updated .