CVE-2025-21671

In the Linux kernel, the following vulnerability has been resolved: zram: fix potential UAF of zram table If zram_meta_alloc failed early, it frees allocated zram->table without setting it NULL. Which will potentially cause zram_meta_free to access the table if user reset an failed and uninitialized device.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/212fe1c0df4a150fb6298db2cfff267ceaba5402	Patch
https://git.kernel.org/stable/c/571d3f6045cd3a6d9f6aec33b678f3ffe97582ef	Patch
https://git.kernel.org/stable/c/902ef8f16d5ca77edc77c30656be54186c1e99b7	Patch
https://git.kernel.org/stable/c/fe3de867f94819ba0f28e035c0b0182150147d95	Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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

03 Nov 2025, 21:19

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html -

Information

Published : 2025-01-31 12:15

Updated : 2025-11-03 21:19

NVD link : CVE-2025-21671

Mitre link : CVE-2025-21671

CVE.ORG link : CVE-2025-21671

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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