CVE-2026-64276 (GCVE-0-2026-64276)
Vulnerability from cvelistv5
Published
2026-07-25 08:49
Modified
2026-10-19 20:28
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
Version: 3e64fcbdbd10e46dede502d507dbcc104837cd59
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These writes can corrupt adjacent heap objects or metadata and plausibly enable control-flow hijacking.\\nA:H - The controlled heap corruption can damage adjacent kernel objects and cause an oops or panic, while the device can also repeatedly trigger the out-of-bounds attention path.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"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\"}], \"programFiles\": [\"drivers/input/rmi4/rmi_f30.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.14\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.14\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.261\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.212\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.178\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.145\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.96\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.39\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"7.1.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.1.*\"}, {\"status\": \"unaffected\", \"version\": \"7.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/input/rmi4/rmi_f30.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8c6d18d61bb6fe0e6edf848413391c590552e8a9\"}, {\"url\": \"https://git.kernel.org/stable/c/d162a1ead7de404d8b41a093c83ed0db6487cded\"}, {\"url\": \"https://git.kernel.org/stable/c/f0be9eba946e9200b43265e0a748d38bd0a56954\"}, {\"url\": \"https://git.kernel.org/stable/c/26c895928d7118436a24f564587cb4aefc40cdd8\"}, {\"url\": \"https://git.kernel.org/stable/c/4e3689c26854356f41fbaa1eafa382e58ac79e00\"}, {\"url\": \"https://git.kernel.org/stable/c/e849c6f51e6877104c765da084e001ec37c8e119\"}, {\"url\": \"https://git.kernel.org/stable/c/bfe622efecd4ff0a792d0ecd1a8dce535a902f50\"}, {\"url\": \"https://git.kernel.org/stable/c/d577e46785d45484b2ab7e7309c49b18764bf56c\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.261\", \"versionStartIncluding\": \"4.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.212\", \"versionStartIncluding\": \"4.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.178\", \"versionStartIncluding\": \"4.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.145\", \"versionStartIncluding\": \"4.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.96\", \"versionStartIncluding\": \"4.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.39\", \"versionStartIncluding\": \"4.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.1.4\", \"versionStartIncluding\": \"4.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.2\", \"versionStartIncluding\": \"4.14\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-17T04:52:31.046Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-64276\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-19T20:28:17.083Z\", \"dateReserved\": \"2026-07-19T15:36:31.776Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-07-25T08:49:21.300Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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