Vulnerability-Lookup

CVE-2026-64274 (GCVE-0-2026-64274)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-07-25 08:49

Title

Input: goodix - clamp the device-reported contact count

Summary

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.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e825f352ef5271255…
https://git.kernel.org/stable/c/4bfea9c3a0981c1c7…
https://git.kernel.org/stable/c/98b2caef249183b57…
https://git.kernel.org/stable/c/719d1a2c83a46be6b…
https://git.kernel.org/stable/c/46addbd13dbf4aacb…
https://git.kernel.org/stable/c/3b32303460155603d…
https://git.kernel.org/stable/c/2a67668690129953e…
https://git.kernel.org/stable/c/5ed62a96e06be4e94…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < e825f352ef5271255cd08cc994b0dc25648a2f38 (git) Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < 4bfea9c3a0981c1c7fc5d1a1b27197b2de247902 (git) Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < 98b2caef249183b572c04451365246f919707845 (git) Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < 719d1a2c83a46be6bf81af905e4f6adb3d32dc28 (git) Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < 46addbd13dbf4aacb71cfbca964a5e552d0f45ae (git) Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < 3b32303460155603d25444274856013d211d5e1f (git) Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < 2a67668690129953e898923260a2dd1c7c196495 (git) Affected: a7ac7c95d4682883d141c5d7a7544d2818f0a09f , < 5ed62a96e06be4e94b8296b7932afee550a70e04 (git)
Linux	Linux	Affected: 4.1 Unaffected: 0 , < 4.1 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: goodix - clamp the device-reported contact count\n\ngoodix_ts_read_input_report() copies the number of touch points reported\nby the device into an on-stack buffer\n\n\tu8 point_data[2 + GOODIX_MAX_CONTACT_SIZE * GOODIX_MAX_CONTACTS];\n\nwhich is sized for at most GOODIX_MAX_CONTACTS (10) contacts. The only\nruntime check bounds the per-interrupt count against ts-\u003emax_touch_num,\nbut that value is taken verbatim from a 4-bit field of the device\nconfiguration block and is never clamped:\n\n\tts-\u003emax_touch_num = ts-\u003econfig[MAX_CONTACTS_LOC] \u0026 0x0f;\n\nThe nibble can be 0..15, so a malfunctioning, malicious or counterfeit\ncontroller (or an attacker tampering with the I2C bus) can advertise up\nto 15 contacts. goodix_ts_read_input_report() then accepts a touch_num\nof up to 15 and the second goodix_i2c_read() writes\nts-\u003econtact_size * (touch_num - 1) bytes past the one-contact header into\npoint_data - up to 30 bytes (45 with the 9-byte report format) beyond the\n92-byte buffer: a stack out-of-bounds write.\n\nClamp max_touch_num to GOODIX_MAX_CONTACTS, the number of contacts\npoint_data[] is sized for, when reading it from the configuration."
        }
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    "datePublished": "2026-07-25T08:49:20.040Z",
    "dateReserved": "2026-07-19T15:36:31.776Z",
    "dateUpdated": "2026-07-25T08:49:20.040Z",
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The only\\nruntime check bounds the per-interrupt count against ts-\u003emax_touch_num,\\nbut that value is taken verbatim from a 4-bit field of the device\\nconfiguration block and is never clamped:\\n\\n\\tts-\u003emax_touch_num = ts-\u003econfig[MAX_CONTACTS_LOC] \u0026 0x0f;\\n\\nThe nibble can be 0..15, so a malfunctioning, malicious or counterfeit\\ncontroller (or an attacker tampering with the I2C bus) can advertise up\\nto 15 contacts. goodix_ts_read_input_report() then accepts a touch_num\\nof up to 15 and the second goodix_i2c_read() writes\\nts-\u003econtact_size * (touch_num - 1) bytes past the one-contact header into\\npoint_data - up to 30 bytes (45 with the 9-byte report format) beyond the\\n92-byte buffer: a stack out-of-bounds write.\\n\\nClamp max_touch_num to GOODIX_MAX_CONTACTS, the number of contacts\\npoint_data[] is sized for, when reading it from the configuration.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/input/touchscreen/goodix.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"e825f352ef5271255cd08cc994b0dc25648a2f38\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"4bfea9c3a0981c1c7fc5d1a1b27197b2de247902\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"98b2caef249183b572c04451365246f919707845\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"719d1a2c83a46be6bf81af905e4f6adb3d32dc28\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"46addbd13dbf4aacb71cfbca964a5e552d0f45ae\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"3b32303460155603d25444274856013d211d5e1f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"2a67668690129953e898923260a2dd1c7c196495\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a7ac7c95d4682883d141c5d7a7544d2818f0a09f\",\"lessThan\":\"5ed62a96e06be4e94b8296b7932afee550a70e04\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/input/touchscreen/goodix.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.1\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.1\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.4\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2a67668690129953e898923260a2dd1c7c196495\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3b32303460155603d25444274856013d211d5e1f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/46addbd13dbf4aacb71cfbca964a5e552d0f45ae\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4bfea9c3a0981c1c7fc5d1a1b27197b2de247902\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5ed62a96e06be4e94b8296b7932afee550a70e04\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/719d1a2c83a46be6bf81af905e4f6adb3d32dc28\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/98b2caef249183b572c04451365246f919707845\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e825f352ef5271255cd08cc994b0dc25648a2f38\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-07-25T16:46:49Z",
      "cve": "CVE-2026-64274",
      "id": "CVE-2026-64274",
      "initial_release_date": "2026-07-25T16:46:49Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64274",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64274.json",
      "version": "2"
    }
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}

GHSA-PFX5-JW3V-F6MP

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

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.

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  "affected": [],
  "aliases": [
    "CVE-2026-64274"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: goodix - clamp the device-reported contact count\n\ngoodix_ts_read_input_report() copies the number of touch points reported\nby the device into an on-stack buffer\n\n\tu8 point_data[2 + GOODIX_MAX_CONTACT_SIZE * GOODIX_MAX_CONTACTS];\n\nwhich is sized for at most GOODIX_MAX_CONTACTS (10) contacts. The only\nruntime check bounds the per-interrupt count against ts-\u003emax_touch_num,\nbut that value is taken verbatim from a 4-bit field of the device\nconfiguration block and is never clamped:\n\n\tts-\u003emax_touch_num = ts-\u003econfig[MAX_CONTACTS_LOC] \u0026 0x0f;\n\nThe nibble can be 0..15, so a malfunctioning, malicious or counterfeit\ncontroller (or an attacker tampering with the I2C bus) can advertise up\nto 15 contacts. goodix_ts_read_input_report() then accepts a touch_num\nof up to 15 and the second goodix_i2c_read() writes\nts-\u003econtact_size * (touch_num - 1) bytes past the one-contact header into\npoint_data - up to 30 bytes (45 with the 9-byte report format) beyond the\n92-byte buffer: a stack out-of-bounds write.\n\nClamp max_touch_num to GOODIX_MAX_CONTACTS, the number of contacts\npoint_data[] is sized for, when reading it from the configuration.",
  "id": "GHSA-pfx5-jw3v-f6mp",
  "modified": "2026-07-25T12:31:28Z",
  "published": "2026-07-25T12:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64274"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a67668690129953e898923260a2dd1c7c196495"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b32303460155603d25444274856013d211d5e1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46addbd13dbf4aacb71cfbca964a5e552d0f45ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4bfea9c3a0981c1c7fc5d1a1b27197b2de247902"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ed62a96e06be4e94b8296b7932afee550a70e04"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/719d1a2c83a46be6bf81af905e4f6adb3d32dc28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98b2caef249183b572c04451365246f919707845"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e825f352ef5271255cd08cc994b0dc25648a2f38"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-64274 (GCVE-0-2026-64274)

GHSA-PFX5-JW3V-F6MP

Tags

Sightings

Nomenclature