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

CVE-2026-64276
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 6 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 3e64fcbdbd10e46dede502d507dbcc104837cd59 < 8c6d18d61bb6fe0e6edf848413391c590552e8a9 ; affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 < d162a1ead7de404d8b41a093c83ed0db6487cded ; affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 < f0be9eba946e9200b43265e0a748d38bd0a56954 ; affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 < 26c895928d7118436a24f564587cb4aefc40cdd8 ; affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 < 4e3689c26854356f41fbaa1eafa382e58ac79e00 ; affected 3e64fcbdbd10e46dede502d507dbcc104837cd59 < e849c6f51e6877104c765da084e001ec37c8e119
Linux · Linuxaffected 4.14 ; unaffected 0 < 4.14 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD