CVE-2024-35882
SunRPC NFS Server Memory Leak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP Jan Schunk reports that his small NFS servers suffer from memory exhaustion after just a few days. A bisect shows that commit e18e157bb5c8 ("SUNRPC: Send RPC message on TCP with a single sock_sendmsg() call") is the first bad commit. That commit assumed that sock_sendmsg() releases all the pages in the underlying bio_vec array, but the reality is that it doesn't. svc_xprt_release() releases the rqst's response pages, but the record marker page fragment isn't one of those, so it is never released. This is a narrow fix that can be applied to stable kernels. A more extensive fix is in the works.
INFO
Published Date :
May 19, 2024, 9:15 a.m.
Last Modified :
Nov. 21, 2024, 9:21 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-35882.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-35882 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-35882 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.8.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.6 from (excluding) 6.6.26 Added Reference Type CVE: https://git.kernel.org/stable/c/05258a0a69b3c5d2c003f818702c0a52b6fea861 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/05258a0a69b3c5d2c003f818702c0a52b6fea861 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882 Types: Mailing List, Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/05258a0a69b3c5d2c003f818702c0a52b6fea861 Added Reference https://git.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8 Added Reference https://git.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 19, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP Jan Schunk reports that his small NFS servers suffer from memory exhaustion after just a few days. A bisect shows that commit e18e157bb5c8 ("SUNRPC: Send RPC message on TCP with a single sock_sendmsg() call") is the first bad commit. That commit assumed that sock_sendmsg() releases all the pages in the underlying bio_vec array, but the reality is that it doesn't. svc_xprt_release() releases the rqst's response pages, but the record marker page fragment isn't one of those, so it is never released. This is a narrow fix that can be applied to stable kernels. A more extensive fix is in the works. Added Reference kernel.org https://git.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/05258a0a69b3c5d2c003f818702c0a52b6fea861 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-35882 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-35882
weaknesses.