Out-of-bounds read in Linux kernel - CVE-2026-64237

Vulnerability identifier: #VU139773

CSH Severity: Low

CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-64237

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in the elan_i2c firmware update handler when processing a crafted firmware file. A local user can provide a specially crafted firmware file to disclose sensitive information.

Linux kernel
openEuler
Ubuntu
kernel-debugsource
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-extra-modules
kernel-devel
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
perf-debuginfo
python3-perf
python3-perf-debuginfo
linux-aws (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-nvidia-bos (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-debugsource - update to 6.6.0-145.3.29.160
perf - update to 6.6.0-145.3.29.160
kernel-tools-devel - update to 6.6.0-145.3.29.160
kernel-tools-debuginfo - update to 6.6.0-145.3.29.160
kernel-tools - update to 6.6.0-145.3.29.160
kernel-source - update to 6.6.0-145.3.29.160
kernel-headers - update to 6.6.0-145.3.29.160
kernel-extra-modules - update to 6.6.0-145.3.29.160
kernel-devel - update to 6.6.0-145.3.29.160
kernel-debuginfo - update to 6.6.0-145.3.29.160
bpftool-debuginfo - update to 6.6.0-145.3.29.160
bpftool - update to 6.6.0-145.3.29.160
kernel - update to 6.6.0-145.3.29.160
perf-debuginfo - update to 6.6.0-145.3.29.160
python3-perf - update to 6.6.0-145.3.29.160
python3-perf-debuginfo - update to 6.6.0-145.3.29.160
linux-aws (Ubuntu package) - addressed in versions 7.0.0-1009.9, 7.0.0-1015.15
linux-gcp-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-nvidia (Ubuntu package) - addressed in versions 7.0.0-1016.16, 7.0.0-1016.16~24.04.1
linux-nvidia-bos (Ubuntu package) - update to 7.0.0-2016.16

• https://git.kernel.org/stable/c/331d49b4e1c9efe4479bbd22922dfcdd8c64be7b
• https://git.kernel.org/stable/c/3b37190ad3ded3a15fb1dbfc4f26df520a3e59bb
• https://git.kernel.org/stable/c/47b52b98edfe34d0249e72f815215ef24311c3a3
• https://git.kernel.org/stable/c/48b0aa9c08a3ac8e0c0345b7ca581f552324e460
• https://git.kernel.org/stable/c/76b0d0baa9ae9c60e726bbe1b6ff0bec2c993634
• https://git.kernel.org/stable/c/bf769358419e00344c1b16fa034d058f563d46a1
• https://git.kernel.org/stable/c/c2c3b33b3c0bf2c9427c0926817ef5ffac50de6f
• https://git.kernel.org/stable/c/d97baee9590edf303b3eca432e61de9320834fe1

• Out-of-bounds read in Linux kernel input mouse driver
• Ubuntu update for linux-aws
• Ubuntu update for linux-nvidia-bos
• Ubuntu update for linux-nvidia
• openEuler 24.03 LTS SP3 update for kernel
• Ubuntu update for linux-gcp-7.0