CVE-2021-47002

MEDIUM

Linux Kernel - Null Pointer Dereference in svc_rqst_free()

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix null pointer dereference in svc_rqst_free() When alloc_pages_node() returns null in svc_rqst_alloc(), the null rq_scratch_page pointer will be dereferenced when calling put_page() in svc_rqst_free(). Fix it by adding a null check. Addresses-Coverity: ("Dereference after null check")

References (5)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0024
EPSS Percentile 14.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (12)
Linux/Linux < 5.11
Linux/Linux 5.10.220 - 5.10.221
Linux/Linux 5.10.221 - 5.10.*
Linux/Linux 5.11
Linux/Linux 5.11.22 - 5.11.*
Linux/Linux 5.12.5 - 5.12.*
Linux/Linux 5.13
Linux/Linux 5191955d6fc65e6d4efe8f4f10a6028298f57281 - 1e10f58f1c9a6b667b045513c7a4e6111c24fe7c
Linux/Linux 5191955d6fc65e6d4efe8f4f10a6028298f57281 - b9f83ffaa0c096b4c832a43964fe6bff3acffe10
Linux/Linux 5191955d6fc65e6d4efe8f4f10a6028298f57281 - c664aaec9aee544538a78ba4893a44bc73a6d742
... and 2 more
Published Feb 28, 2024
Tracked Since Feb 18, 2026