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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-21671 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

ADP:  CISA-ADP
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink 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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST   CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
6.1.122		Up to (excluding)
6.1.127
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
6.6.68		Up to (excluding)
6.6.74
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
6.12.7		Up to (excluding)
6.12.11

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-21671
NVD Published Date:
01/31/2025
NVD Last Modified:
02/10/2025
Source:
kernel.org