CVE-2024-49974

In the Linux kernel, the following vulnerability has been resolved: NFSD: Limit the number of concurrent async COPY operations Nothing appears to limit the number of concurrent async COPY operations that clients can start. In addition, AFAICT each async COPY can copy an unlimited number of 4MB chunks, so can run for a long time. Thus IMO async COPY can become a DoS vector. Add a restriction mechanism that bounds the number of concurrent background COPY operations. Start simple and try to be fair -- this patch implements a per-namespace limit. An async COPY request that occurs while this limit is exceeded gets NFS4ERR_DELAY. The requesting client can choose to send the request again after a delay or fall back to a traditional read/write style copy. If there is need to make the mechanism more sophisticated, we can visit that in future patches.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

14 Dec 2024, 21:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/9e52ff544e0bfa09ee339fd7b0937ee3c080c24e -
  • () https://git.kernel.org/stable/c/43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf -

02 Dec 2024, 08:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/ae267989b7b7933dfedcd26468d0a88fc3a9da9e -
  • () https://git.kernel.org/stable/c/7ea9260874b779637aff6d24c344b8ef4ac862a0 -

01 Nov 2024, 16:52

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
CWE NVD-CWE-noinfo
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/6a488ad7745b8f64625c6d3a24ce7e448e83f11b - () https://git.kernel.org/stable/c/6a488ad7745b8f64625c6d3a24ce7e448e83f11b - Patch
References () https://git.kernel.org/stable/c/b4e21431a0db4854b5023cd5af001be557e6c3db - () https://git.kernel.org/stable/c/b4e21431a0db4854b5023cd5af001be557e6c3db - Patch
References () https://git.kernel.org/stable/c/aadc3bbea163b6caaaebfdd2b6c4667fbc726752 - () https://git.kernel.org/stable/c/aadc3bbea163b6caaaebfdd2b6c4667fbc726752 - Patch

21 Oct 2024, 18:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-10-21 18:15

Updated : 2024-12-14 21:15


NVD link : CVE-2024-49974

Mitre link : CVE-2024-49974


JSON object : View

Products Affected

linux

  • linux_kernel