CVE-2025-21798

In the Linux kernel, the following vulnerability has been resolved: firewire: test: Fix potential null dereference in firewire kunit test kunit_kzalloc() may return a NULL pointer, dereferencing it without NULL check may lead to NULL dereference. Add a NULL check for test_state.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

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/352fafe97784e81a10a7c74bd508f71a19b53c2a	Patch
https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8	Patch
https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

01 Oct 2025, 20:18

Type	Values Removed	Values Added
First Time		Linux linux Kernel Linux
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CWE		CWE-476
References	~~() https://git.kernel.org/stable/c/352fafe97784e81a10a7c74bd508f71a19b53c2a -~~	() https://git.kernel.org/stable/c/352fafe97784e81a10a7c74bd508f71a19b53c2a - Patch
References	~~() https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8 -~~	() https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8 - Patch
References	~~() https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f -~~	() https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f - Patch
Summary		(es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firewire: test: Se corrige una posible desreferencia nula en la prueba kunit de firewire kunit_kzalloc() puede devolver un puntero NULL, desreferenciarlo sin la comprobación NULL puede provocar una desreferencia NULL. Se añade una comprobación NULL para test_state.

27 Feb 2025, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-02-27 20:16

Updated : 2025-10-01 20:18

NVD link : CVE-2025-21798

Mitre link : CVE-2025-21798

CVE.ORG link : CVE-2025-21798

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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