Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-cross-headers (opens in a new tab)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-KERNELCROSSHEADERS-10053744
- published6 May 2025
- disclosed26 Feb 2025
Introduced: 26 Feb 2025
CVE-2022-49416 (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-cross-headers package and not the kernel-cross-headers package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: fix use-after-free in chanctx code
In ieee80211_vif_use_reserved_context(), when we have an old context and the new context's replace_state is set to IEEE80211_CHANCTX_REPLACE_NONE, we free the old context in ieee80211_vif_use_reserved_reassign(). Therefore, we cannot check the old_ctx anymore, so we should set it to NULL after this point.
However, since the new_ctx replace state is clearly not IEEE80211_CHANCTX_REPLACES_OTHER, we're not going to do anything else in this function and can just return to avoid accessing the freed old_ctx.
References
- https://access.redhat.com/security/cve/CVE-2022-49416
- https://git.kernel.org/stable/c/265bec4779a38b65e86a25120370f200822dfa76
- https://git.kernel.org/stable/c/2965c4cdf7ad9ce0796fac5e57debb9519ea721e
- https://git.kernel.org/stable/c/4ba81e794f0fad6234f644c2da1ae14d5b95e1c4
- https://git.kernel.org/stable/c/4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c
- https://git.kernel.org/stable/c/6118bbdf69f4718b02d26bbcf2e497eb66004331
- https://git.kernel.org/stable/c/82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c
- https://git.kernel.org/stable/c/88cc8f963febe192d6ded9df7217f92f380b449a
- https://git.kernel.org/stable/c/9f1e5cc85ad77e52f54049a94db0407445ae2a34
- https://git.kernel.org/stable/c/b79110f2bf6022e60e590d2e094728a8eec3e79e