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.
Metrics
Affected Vendors & Products
References
History
Fri, 22 Nov 2024 12:00:00 +0000
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Tue, 05 Nov 2024 10:45:00 +0000
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-03-21T10:43:44.103Z
Updated: 2024-11-05T09:13:06.059Z
Reserved: 2024-02-19T14:20:24.137Z
Link: CVE-2024-26643
Vulnrichment
Updated: 2024-08-02T00:07:19.747Z
NVD
Status : Awaiting Analysis
Published: 2024-03-21T11:15:28.340
Modified: 2024-11-21T09:02:45.103
Link: CVE-2024-26643
Redhat