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Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-cross-headers  (opens in a new tab)

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0.04% (10th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELCROSSHEADERS-12157664
  • published23 Aug 2025
  • disclosed18 Jun 2025
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Introduced: 18 Jun 2025

CVE-2022-49934  (opens in a new tab)
CWE-825  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

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 UAF in ieee80211_scan_rx()

ieee80211_scan_rx() tries to access scan_req->flags after a null check, but a UAF is observed when the scan is completed and __ieee80211_scan_completed() executes, which then calls cfg80211_scan_done() leading to the freeing of scan_req.

Since scan_req is rcu_dereference()'d, prevent the racing in __ieee80211_scan_completed() by ensuring that from mac80211's POV it is no longer accessed from an RCU read critical section before we call cfg80211_scan_done().