Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-debug-modules (opens in a new tab)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-KERNELDEBUGMODULES-7325363
- published21 Jun 2024
- disclosed20 Jun 2024
Introduced: 20 Jun 2024
CVE-2022-48742 (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-debug-modules package and not the kernel-debug-modules package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
While looking at one unrelated syzbot bug, I found the replay logic in __rtnl_newlink() to potentially trigger use-after-free.
It is better to clear master_dev and m_ops inside the loop, in case we have to replay it.
References
- https://access.redhat.com/security/cve/CVE-2022-48742
- https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303
- https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210
- https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39
- https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8
- https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93
- https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5
- https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963
- https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a