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CVE-2024-26643

Status Candidate

Overview

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path. Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 ("netfilter: nf_tables: use timestamp to check for set element timeout"). Fix this by setting on the dead flag for anonymous sets to skip async gc in this case. According to 08e4c8c5919f ("netfilter: nf_tables: mark newset as dead on transaction abort"), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too.

Related Files

Ubuntu Security Notice USN-6872-2
Posted Jul 5, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6872-2 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2024-26643
SHA-256 | 20d97396673e221bd6ba0bf9a487a261d4a7ef663d0f7f7345eb03386f40430d
Ubuntu Security Notice USN-6872-1
Posted Jul 4, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6872-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2024-26643
SHA-256 | 06eccc90e7058bbf56be9161ff550d86081e1c1331bbfc75d26afef065f129ef
Ubuntu Security Notice USN-6869-1
Posted Jul 4, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6869-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2024-26643
SHA-256 | 0f9f7bb4421bfeafa5b71b445c672e024a4813b8f18b3b03d3e97db9b5cc7f9f
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