Improper error handling in Linux kernel - CVE-2025-37774

Vulnerability identifier: #VU108334

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-2025-37774

CWE-ID: CWE-388

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper error handling within the handle_failed_objexts_alloc(), need_slab_obj_ext() and allocate_slab() functions in mm/slub.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws (Ubuntu package)

Install update from vendor's website.

Linux kernel - addressed in versions 6.12.25, 6.14.4
linux (Ubuntu package) - addressed in versions 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-azure (Ubuntu package) - update to 6.14.0-1007.7
linux-aws (Ubuntu package) - addressed in versions 6.14.0-1007.7, 6.14.0-1007.7+1

• https://git.kernel.org/stable/c/28bef6622a1a874fe63aceeb0c684fab75afb3ae
• https://git.kernel.org/stable/c/8baa747193591410a853bac9c3710142dfa4937b
• https://git.kernel.org/stable/c/d2f5819b6ed357c0c350c0616b6b9f38be59adf6
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.25
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4

• Improper error handling in Linux kernel mm
• Ubuntu update for linux
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws