In the Linux kernel, the following vulnerability has been resolved:
NFSD: Protect against send buffer overflow in NFSv2 READ
Since before the git era, NFSD has conserved the number of pages
held by each nfsd thread by combining the RPC receive and send
buffers into a single array of pages. This works because there are
no cases where an operation needs a large RPC Call message and a
large RPC Reply at the same time.
Once an RPC Call has been received, svc_process() updates
svc_rqst::rq_res to describe the part of rq_pages that can be
used for constructing the Reply. This means that the send buffer
(rq_res) shrinks when the received RPC record containing the RPC
Call is large.
A client can force this shrinkage on TCP by sending a correctly-
formed RPC Call header contained in an RPC record that is
excessively large. The full maximum payload size cannot be
constructed in that case.
References
Configurations
Configuration 1 (hide)
|
History
11 Dec 2025, 14:37
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/1868332032eccbab8c1878a0d918193058c0a905 - Patch | |
| References | () https://git.kernel.org/stable/c/2007867c5874134f2271eb276398208070049dd3 - Patch | |
| References | () https://git.kernel.org/stable/c/2be9331ca6061bc6ea32247266f45b8b21030244 - Patch | |
| References | () https://git.kernel.org/stable/c/401bc1f90874280a80b93f23be33a0e7e2d1f912 - Patch | |
| References | () https://git.kernel.org/stable/c/ea4c3eee0fd72fcedaa238556044825639cd3607 - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CWE | CWE-787 | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
18 Sep 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-18 16:15
Updated : 2025-12-11 14:37
NVD link : CVE-2022-50410
Mitre link : CVE-2022-50410
CVE.ORG link : CVE-2022-50410
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write