CVE-2026-64274Input: goodix - clamp the device-reported contact count
- 7.8HighCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 94% 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: Input: goodix - clamp the device-reported contact count goodix_ts_read_input_report() copies the number of touch points reported by the device into an on-stack buffer u8 point_data[2 + GOODIX_MAX_CONTACT_SIZE * GOODIX_MAX_CONTACTS]; which is sized for at most GOODIX_MAX_CONTACTS (10) contacts. The only runtime check bounds the per-interrupt count against ts->max_touch_num, but that value is taken verbatim from a 4-bit field of the device configuration block and is never clamped: ts->max_touch_num = ts->config[MAX_CONTACTS_LOC] & 0x0f; The nibble can be 0..15, so a malfunctioning, malicious or counterfeit controller (or an attacker tampering with the I2C bus) can advertise up to 15 contacts. goodix_ts_read_input_report() then accepts a touch_num of up to 15 and the second goodix_i2c_read() writes ts->contact_size * (touch_num - 1) bytes past the one-contact header into point_data - up to 30 bytes (45 with the 9-byte report format) beyond the 92-byte buffer: a stack out-of-bounds write. Clamp max_touch_num to GOODIX_MAX_CONTACTS, the number of contacts point_data[] is sized for, when reading it from the configuration.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 23 days later
· 23 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 |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < e825f352ef5271255cd08cc994b0dc25648a2f38
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < 4bfea9c3a0981c1c7fc5d1a1b27197b2de247902
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < 98b2caef249183b572c04451365246f919707845
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < 719d1a2c83a46be6bf81af905e4f6adb3d32dc28
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < 46addbd13dbf4aacb71cfbca964a5e552d0f45ae
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < 3b32303460155603d25444274856013d211d5e1f
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < 2a67668690129953e898923260a2dd1c7c196495
- affected a7ac7c95d4682883d141c5d7a7544d2818f0a09f – < 5ed62a96e06be4e94b8296b7932afee550a70e04
- affected 4.1
- unaffected < 4.1
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.96 – ≤ 6.12.*
- unaffected 6.18.39 – ≤ 6.18.*
- unaffected 7.1.4 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/e825f352ef5271255cd08cc994b0dc25648a2f38 (opens in a new tab)
- https://git.kernel.org/stable/c/4bfea9c3a0981c1c7fc5d1a1b27197b2de247902 (opens in a new tab)
- https://git.kernel.org/stable/c/98b2caef249183b572c04451365246f919707845 (opens in a new tab)
- https://git.kernel.org/stable/c/719d1a2c83a46be6bf81af905e4f6adb3d32dc28 (opens in a new tab)
- https://git.kernel.org/stable/c/46addbd13dbf4aacb71cfbca964a5e552d0f45ae (opens in a new tab)
- https://git.kernel.org/stable/c/3b32303460155603d25444274856013d211d5e1f (opens in a new tab)
- https://git.kernel.org/stable/c/2a67668690129953e898923260a2dd1c7c196495 (opens in a new tab)
- https://git.kernel.org/stable/c/5ed62a96e06be4e94b8296b7932afee550a70e04 (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-2026-48986 (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-2026-64274)Record last updated .