Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64276
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:08 UTC
Updated2026-07-30 15:00:27 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001640000 probability, percentile 0.060510000 (date 2026-08-03)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 8c6d18d61bb6fe0e6edf848413391c590552e8a9 git Not specified
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 d162a1ead7de404d8b41a093c83ed0db6487cded git Not specified
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 f0be9eba946e9200b43265e0a748d38bd0a56954 git Not specified
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 26c895928d7118436a24f564587cb4aefc40cdd8 git Not specified
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 4e3689c26854356f41fbaa1eafa382e58ac79e00 git Not specified
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 e849c6f51e6877104c765da084e001ec37c8e119 git Not specified
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 bfe622efecd4ff0a792d0ecd1a8dce535a902f50 git Not specified
CNA Linux Linux affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 d577e46785d45484b2ab7e7309c49b18764bf56c git Not specified
CNA Linux Linux affected 4.14 Not specified
CNA Linux Linux unaffected 4.14 semver Not specified
CNA Linux Linux unaffected 5.10.261 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.212 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.96 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.39 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f0be9eba946e9200b43265e0a748d38bd0a56954 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/26c895928d7118436a24f564587cb4aefc40cdd8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d577e46785d45484b2ab7e7309c49b18764bf56c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bfe622efecd4ff0a792d0ecd1a8dce535a902f50 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e849c6f51e6877104c765da084e001ec37c8e119 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8c6d18d61bb6fe0e6edf848413391c590552e8a9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4e3689c26854356f41fbaa1eafa382e58ac79e00 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d162a1ead7de404d8b41a093c83ed0db6487cded 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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