CVE-2025-21946

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds in parse_sec_desc() If osidoffset, gsidoffset and dacloffset could be greater than smb_ntsd struct size. If it is smaller, It could cause slab-out-of-bounds. And when validating sid, It need to check it included subauth array size.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/159d059cbcb0e6d0e7a7b34af3862ba09a6b22d1	Patch
https://git.kernel.org/stable/c/6a9831180d0b23b5c97e2bd841aefc8f82900172	Patch
https://git.kernel.org/stable/c/c1569dbbe2d43041be9f3fef7ca08bec3b66ad1b	Patch
https://git.kernel.org/stable/c/d6e13e19063db24f94b690159d0633aaf72a0f03	Patch
https://git.kernel.org/stable/c/f4ee19528664777af8b842f8f001be98345aa973

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::::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc5::::::

History

No history.

Information

Published : 2025-04-01 16:15

Updated : 2026-01-11 17:15

NVD link : CVE-2025-21946

Mitre link : CVE-2025-21946

CVE.ORG link : CVE-2025-21946

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-125

Out-of-bounds Read

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