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CVE-2024-26910 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronize_rcu() added to the swap function unnecessarily slows it down: it can safely be moved to destroy and use call_rcu() instead. Eric Dumazet pointed out that simply calling the destroy functions as rcu callback does not work: sets with timeout use garbage collectors which need cancelling at destroy which can wait. Therefore the destroy functions are split into two: cancelling garbage collectors safely at executing the command received by netlink and moving the remaining part only into the rcu callback.


Severity



CVSS 4.0 Severity and Metrics:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.


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Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/653bc5e6d9995d7d5f497c665b321875a626161c Patch 
https://git.kernel.org/stable/c/970709a67696b100a57b33af1a3d75fc34b747eb Patch 
https://git.kernel.org/stable/c/97f7cf1cd80eeed3b7c808b7c12463295c751001 Patch 
https://git.kernel.org/stable/c/a24d5f2ac8ef702a58e55ec276aad29b4bd97e05 Patch 
https://git.kernel.org/stable/c/b93a6756a01f4fd2f329a39216f9824c56a66397 Patch 
https://git.kernel.org/stable/c/c2dc077d8f722a1c73a24e674f925602ee5ece49 Patch 
https://git.kernel.org/stable/c/c7f2733e5011bfd136f1ca93497394d43aa76225 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-26910
NVD Published Date:
04/17/2024
NVD Last Modified:
04/29/2024
Source:
kernel.org