Input validation error in Linux kernel - CVE-2025-40199

Vulnerability identifier: #VU118489

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-2025-40199

CWE-ID: CWE-20

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 input validation within the page_pool_dma_sync_for_device(), page_pool_dma_map(), page_pool_clear_pp_info() and __page_pool_release_page_dma() functions in net/core/page_pool.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-gcp (Ubuntu package)
linux-aws (Ubuntu package)
linux-azure (Ubuntu package)
linux-oem-6.17 (Ubuntu package)

Install update from vendor's repository.

linux (Ubuntu package) - addressed in versions 6.17.0-14.14, 6.17.0-1006.7, 6.17.0-1008.8
linux-gcp (Ubuntu package) - update to 6.17.0-1007.7
linux-aws (Ubuntu package) - update to 6.17.0-1007.7
linux-azure (Ubuntu package) - update to 6.17.0-1008.8
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1011.11

• https://git.kernel.org/stable/c/15b8a5b4cdc16e9a8bb2a548e12a0fd92997605a
• https://git.kernel.org/stable/c/95920c2ed02bde551ab654e9749c2ca7bc3100e0
• https://git.kernel.org/stable/c/f62934cea32c8f7b11b747975d69bf5afe4264cf

• Input validation error in Linux kernel core
• Ubuntu update for linux-gcp
• Ubuntu update for linux
• Ubuntu update for linux-aws
• Ubuntu update for linux-oem-6.17
• Ubuntu update for linux-azure