NULL pointer dereference in Linux kernel - CVE-2025-37759
Published: May 2, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU108293
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2025-37759
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ublk_complete_rq() and __ublk_fail_req() functions in drivers/block/ublk_drv.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-37759
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/0a21d259ca4d6310fdfcc0284ebbc000e66cbf70
- https://git.kernel.org/stable/c/5d34a30efac9c9c93e150130caa940c0df6053c1
- https://git.kernel.org/stable/c/6ee6bd5d4fce502a5b5a2ea805e9ff16e6aa890f
- https://git.kernel.org/stable/c/caa5c8a2358604f38bf0a4afaa5eacda13763067
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.24