CVE-2026-64276 (GCVE-0-2026-64276)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-07-27 04:59
VLAI
Title
Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count
Summary
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count rmi_f30_map_gpios() allocates gpioled_key_map with min(gpioled_count, TRACKSTICK_RANGE_END) == at most 6 entries, but rmi_f30_attention() iterates the full f30->gpioled_count (device query register, range 0..31) and dereferences gpioled_key_map[i], and input->keycodemax is set to the full gpioled_count while input->keycode points at the 6-entry allocation. A device that reports gpioled_count > 6 with GPIO support enabled therefore causes an out-of-bounds read on the attention interrupt and out-of-bounds read/write through the EVIOCGKEYCODE/EVIOCSKEYCODE ioctls, which bound the index only against keycodemax. This is the same defect as the F3A handler, which was copied from F30. Size the keymap for the full gpioled_count; the mapping loop still assigns only the first min(gpioled_count, TRACKSTICK_RANGE_END) entries.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < 8c6d18d61bb6fe0e6edf848413391c590552e8a9 (git)
Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < d162a1ead7de404d8b41a093c83ed0db6487cded (git)
Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < f0be9eba946e9200b43265e0a748d38bd0a56954 (git)
Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < 26c895928d7118436a24f564587cb4aefc40cdd8 (git)
Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < 4e3689c26854356f41fbaa1eafa382e58ac79e00 (git)
Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < e849c6f51e6877104c765da084e001ec37c8e119 (git)
Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < bfe622efecd4ff0a792d0ecd1a8dce535a902f50 (git)
Affected: 3e64fcbdbd10e46dede502d507dbcc104837cd59 , < d577e46785d45484b2ab7e7309c49b18764bf56c (git)
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Linux Linux Affected: 4.14
Unaffected: 0 , < 4.14 (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)
Create a notification for this product.
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count\n\nrmi_f30_map_gpios() allocates gpioled_key_map with\nmin(gpioled_count, TRACKSTICK_RANGE_END) == at most 6 entries, but\nrmi_f30_attention() iterates the full f30-\u003egpioled_count (device query\nregister, range 0..31) and dereferences gpioled_key_map[i], and\ninput-\u003ekeycodemax is set to the full gpioled_count while input-\u003ekeycode\npoints at the 6-entry allocation.\n\nA device that reports gpioled_count \u003e 6 with GPIO support enabled\ntherefore causes an out-of-bounds read on the attention interrupt and\nout-of-bounds read/write through the EVIOCGKEYCODE/EVIOCSKEYCODE ioctls,\nwhich bound the index only against keycodemax. This is the same defect\nas the F3A handler, which was copied from F30.\n\nSize the keymap for the full gpioled_count; the mapping loop still\nassigns only the first min(gpioled_count, TRACKSTICK_RANGE_END) entries."
        }
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d162a1ead7de404d8b41a093c83ed0db6487cded"
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        },
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          "url": "https://git.kernel.org/stable/c/bfe622efecd4ff0a792d0ecd1a8dce535a902f50"
        },
        {
          "url": "https://git.kernel.org/stable/c/d577e46785d45484b2ab7e7309c49b18764bf56c"
        }
      ],
      "title": "Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count",
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    "datePublished": "2026-07-25T08:49:21.300Z",
    "dateReserved": "2026-07-19T15:36:31.776Z",
    "dateUpdated": "2026-07-27T04:59:20.488Z",
    "state": "PUBLISHED"
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      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-64276.json",
      "version": "1"
    },
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This is the same defect\\nas the F3A handler, which was copied from F30.\\n\\nSize the keymap for the full gpioled_count; the mapping loop still\\nassigns only the first min(gpioled_count, TRACKSTICK_RANGE_END) entries.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/input/rmi4/rmi_f30.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"8c6d18d61bb6fe0e6edf848413391c590552e8a9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"d162a1ead7de404d8b41a093c83ed0db6487cded\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"f0be9eba946e9200b43265e0a748d38bd0a56954\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"26c895928d7118436a24f564587cb4aefc40cdd8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"4e3689c26854356f41fbaa1eafa382e58ac79e00\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"e849c6f51e6877104c765da084e001ec37c8e119\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"bfe622efecd4ff0a792d0ecd1a8dce535a902f50\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3e64fcbdbd10e46dede502d507dbcc104837cd59\",\"lessThan\":\"d577e46785d45484b2ab7e7309c49b18764bf56c\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/input/rmi4/rmi_f30.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.14\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.14\",\"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\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/26c895928d7118436a24f564587cb4aefc40cdd8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4e3689c26854356f41fbaa1eafa382e58ac79e00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8c6d18d61bb6fe0e6edf848413391c590552e8a9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bfe622efecd4ff0a792d0ecd1a8dce535a902f50\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d162a1ead7de404d8b41a093c83ed0db6487cded\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d577e46785d45484b2ab7e7309c49b18764bf56c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e849c6f51e6877104c765da084e001ec37c8e119\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f0be9eba946e9200b43265e0a748d38bd0a56954\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-07-27T06:02:38+00:00",
      "cve": "CVE-2026-64276",
      "id": "CVE-2026-64276",
      "initial_release_date": "2026-07-25T00:00:00+00:00",
      "product_status:known_affected": "261",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64276.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-07-25T16:46:47Z",
      "cve": "CVE-2026-64276",
      "id": "CVE-2026-64276",
      "initial_release_date": "2026-07-25T16:46:47Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64276",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64276.json",
      "version": "2"
    }
  }
}



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