CVE-2021-47002

low-risk
Published 2024-02-28

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")

Do I need to act?

-
0.01% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (8)

Patch https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c
Patch https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336
Patch https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10
Patch https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742
Patch https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c
Patch https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336
Patch https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10
Patch https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal