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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-21980 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: sched: address a potential NULL pointer dereference in the GRED scheduler. If kzalloc in gred_init returns a NULL pointer, the code follows the error handling path, invoking gred_destroy. This, in turn, calls gred_offload, where memset could receive a NULL pointer as input, potentially leading to a kernel crash. When table->opt is NULL in gred_init(), gred_change_table_def() is not called yet, so it is not necessary to call ->ndo_setup_tc() in gred_offload().


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/0f0a152957d64ce45b4c27c687e7d087e8f45079 Patch 
https://git.kernel.org/stable/c/115ef44a98220fddfab37a39a19370497cd718b9 Patch 
https://git.kernel.org/stable/c/5f996b4f80c2cef1f9c77275055e7fcba44c9199 Patch 
https://git.kernel.org/stable/c/68896dd50180b38ea552e49a6a00b685321e5769 Patch 
https://git.kernel.org/stable/c/d02c9acd68950a444acda18d514e2b41f846cb7f Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-21980
NVD Published Date:
04/01/2025
NVD Last Modified:
04/10/2025
Source:
kernel.org