CVE-2025-38274

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-38274
In the Linux kernel, the following vulnerability has been resolved: fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt() fpga_mgr_test_img_load_sgt() allocates memory for sgt using kunit_kzalloc() however it does not check if the allocation failed. It then passes sgt to sg_alloc_table(), which passes it to __sg_alloc_table(). This function calls memset() on sgt in an attempt to zero it out. If the allocation fails then sgt will be NULL and the memset will trigger a NULL pointer dereference. Fix this by checking the allocation with KUNIT_ASSERT_NOT_ERR_OR_NULL().

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28 Patch
https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624 Patch
https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9 Patch
https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

20 Nov 2025, 16:56

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28 - () https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28 - Patch
References () https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624 - () https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624 - Patch
References () https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9 - () https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9 - Patch
References () https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d - () https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux
Linux linux Kernel
CWE CWE-476

10 Jul 2025, 13:17

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fpga: se corrige una posible desreferencia de puntero nulo en fpga_mgr_test_img_load_sgt(). fpga_mgr_test_img_load_sgt() asigna memoria para sgt mediante kunit_kzalloc(), pero no comprueba si la asignación ha fallado. A continuación, pasa sgt a sg_alloc_table(), que a su vez la pasa a __sg_alloc_table(). Esta función llama a memset() en sgt para intentar ponerlo a cero. Si la asignación falla, sgt será nulo y memset activará una desreferencia de puntero nulo. Solucione esto comprobando la asignación con KUNIT_ASSERT_NOT_ERR_OR_NULL().

10 Jul 2025, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-10 08:15

Updated : 2025-11-20 16:56

NVD link : CVE-2025-38274

Mitre link : CVE-2025-38274

CVE.ORG link : CVE-2025-38274

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference