CVE-2023-52800 is a low-severity use-after-free vulnerability in the Linux kernel's ath11k Wi-Fi driver. In HTTP packet-log handling within drivers/net/wireless/ath/ath11k/dp_rx.c, code accessed RCU-protected active physical-device data through ath11k_mac_get_ar_by_pdev_id() without an RCU read-side critical section. The flaw, introduced in kernel 5.6, requires local access and high privileges; Red Hat assigned CVSS 4.4, citing potential availability impact with no confidentiality or integrity impact.
Upstream fixes are available in Linux 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3, 6.7, and later stable releases, and maintainers recommend updating to a current stable kernel rather than cherry-picking the patch. Red Hat remediated affected Red Hat Enterprise Linux 8 kernels through RHSA-2024:7000; RHEL 6 and 7 were assessed as not affected, while fixes for RHEL 8 kernel-rt and RHEL 9 kernel variants were deferred.

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Red Hat addressed CVE-2023-52800 in the Red Hat Enterprise Linux 8 kernel through advisory RHSA-2024:7000. Red Hat classified the issue as Low severity with a CVSS v3.1 score of 4.4; RHEL 6 and 7 were assessed as unaffected, while fixes for specified RHEL 8 and 9 kernel variants were deferred.
The Linux kernel CVE team issued an advisory for CVE-2023-52800 affecting ath11k HTTP packet-log handling. The advisory identified fixes in kernel versions 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3, and 6.7, and recommended updating to a current stable kernel release.
The vulnerable ath11k packet-log code was introduced in Linux kernel 5.6 by commit d5c65159f289. It accessed RCU-protected active physical-device data without an RCU read-side critical section, creating a potential use-after-free condition.
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