Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2026-64276

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in 8c6d18d61bb6fe0e6edf848413391c590552e8a9; From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in d162a1ead7de404d8b41a093c83ed0db6487cded; From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in f0be9eba946e9200b43265e0a748d38bd0a56954; From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in 26c895928d7118436a24f564587cb4aefc40cdd8; From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in 4e3689c26854356f41fbaa1eafa382e58ac79e00; From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in e849c6f51e6877104c765da084e001ec37c8e119; From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in bfe622efecd4ff0a792d0ecd1a8dce535a902f50; From 3e64fcbdbd10e46dede502d507dbcc104837cd59 · fixed in d577e46785d45484b2ab7e7309c49b18764bf56c

  • Linux Linux

    4.14

  • KernelLinux

    From 4.14.0 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.96; From 6.13.0 · fixed in 6.18.39; From 6.19.0 · fixed in 7.1.4

References 8

git.kernel.org