Divide By Zero The advisory has been revoked - it doesn't affect any version of package kernel-rt-modules (opens in a new tab)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-RHEL8-KERNELRTMODULES-8452499
- published3 Dec 2024
- disclosed2 Dec 2024
Introduced: 2 Dec 2024
CVE-2024-53122 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules package and not the kernel-rt-modules package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
mptcp: cope racing subflow creation in mptcp_rcv_space_adjust
Additional active subflows - i.e. created by the in kernel path manager - are included into the subflow list before starting the 3whs.
A racing recvmsg() spooling data received on an already established subflow would unconditionally call tcp_cleanup_rbuf() on all the current subflows, potentially hitting a divide by zero error on the newly created ones.
Explicitly check that the subflow is in a suitable state before invoking tcp_cleanup_rbuf().
References
- https://access.redhat.com/security/cve/CVE-2024-53122
- https://git.kernel.org/stable/c/24995851d58c4a205ad0ffa7b2f21e479a9c8527
- https://git.kernel.org/stable/c/aad6412c63baa39dd813e81f16a14d976b3de2e8
- https://git.kernel.org/stable/c/ce7356ae35943cc6494cc692e62d51a734062b7d
- https://git.kernel.org/stable/c/ff825ab2f455299c0c7287550915a8878e2a66e0
- https://git.kernel.org/stable/c/0a9a182ea5c7bb0374e527130fd85024ace7279b