Race Condition The advisory has been revoked - it doesn't affect any version of package bpftool (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS9-BPFTOOL-8811518
- published28 Feb 2025
- disclosed21 Oct 2024
Introduced: 21 Oct 2024
CVE-2024-49864 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Centos.
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix a race between socket set up and I/O thread creation
In rxrpc_open_socket(), it sets up the socket and then sets up the I/O thread that will handle it. This is a problem, however, as there's a gap between the two phases in which a packet may come into rxrpc_encap_rcv() from the UDP packet but we oops when trying to wake the not-yet created I/O thread.
As a quick fix, just make rxrpc_encap_rcv() discard the packet if there's no I/O thread yet.
A better, but more intrusive fix would perhaps be to rearrange things such that the socket creation is done by the I/O thread.
References
- https://access.redhat.com/security/cve/CVE-2024-49864
- https://git.kernel.org/stable/c/56e415202b8a17de6496f4023e545fcb66f118ec
- https://git.kernel.org/stable/c/bc212465326e8587325f520a052346f0b57360e6
- https://git.kernel.org/stable/c/c64f5fc95e9612fdf75587c8e21e494e614c18e2
- https://git.kernel.org/stable/c/cdf4bbbdb956d7426f687f38757ebca2a2759a0f