Infinite loop in Linux kernel - CVE-2026-53336

Vulnerability identifier: #VU136714

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-53336

CWE-ID: CWE-835

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to an infinite loop in the onie-tlv nvmem layout driver when parsing EEPROM entries with unknown types. A local attacker can provide a crafted EEPROM image containing a vendor-specific or otherwise unknown TLV entry to cause a denial of service.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux (Ubuntu package) - addressed in versions 7.0.0-31.31, 7.0.0-31.31.1, 7.0.0-31.31~24.04.1, 7.0.0-1006.7, 7.0.0-1011.11~24.04.1, 7.0.0-1012.12, 7.0.0-1012.12~24.04.1
linux-gcp-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1013.13

• https://git.kernel.org/stable/c/033d498b0f473c6456be5f885be172024ad84972
• https://git.kernel.org/stable/c/4a4d21f531ccf5bb333d99b620e0d66551f3652c
• https://git.kernel.org/stable/c/4f27eb01619c36cc8e3ce9a2a9af97f145f5d1c6
• https://git.kernel.org/stable/c/ea41020b9018e31c2ea7e9d89021e3e6d7470883
• https://git.kernel.org/stable/c/fd47edeabadfaa75422009dc5894e92c4c697517

• Infinite loop in Linux kernel nvmem layouts driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux
• Ubuntu update for linux-gcp-7.0