CVE-2023-52798: wifi: ath11k: fix dfs radar event locking
First published: Tue May 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix dfs radar event locking The ath11k active pdevs are protected by RCU but the DFS radar event handling code calling ath11k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section. Mark the code in question as an RCU read-side critical section to avoid any potential use-after-free issues. Compile tested only.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.10.202 | 5.10.202 |
| redhat/kernel | <5.15.140 | 5.15.140 |
| redhat/kernel | <6.1.64 | 6.1.64 |
| redhat/kernel | <6.5.13 | 6.5.13 |
| redhat/kernel | <6.6.3 | 6.6.3 |
| redhat/kernel | <6.7 | 6.7 |
| Linux Kernel | >=5.6<5.10.202 | |
| Linux Kernel | >=5.11<5.15.140 | |
| Linux Kernel | >=5.16<6.1.64 | |
| Linux Kernel | >=6.2<6.5.13 | |
| Linux Kernel | >=6.6<6.6.3 |
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Reference Links
- https://git.kernel.org/stable/c/1fd878e1750190a612b5de2af357cca422ec0822
- https://git.kernel.org/stable/c/21ebb0aba580d347e12f01ce5f6e75044427b3d5
- https://git.kernel.org/stable/c/3b6c14833165f689cc5928574ebafe52bbce5f1e
- https://git.kernel.org/stable/c/426e718ce9ba60013364a54233feee309356cb82
- https://git.kernel.org/stable/c/ca420ac4f9451f22347bae44b18ab47ba2c267ec
- https://git.kernel.org/stable/c/f882f51905517575c9f793a3dff567af90ef9a10
- https://access.redhat.com/security/cve/CVE-2023-52798
- https://lore.kernel.org/linux-cve-announce/2024052158-CVE-2023-52798-374e@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:7000
- https://bugzilla.redhat.com/show_bug.cgi?id=2282648
Frequently Asked Questions
What is the severity of CVE-2023-52798?
CVE-2023-52798 has been rated as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2023-52798?
To fix CVE-2023-52798, upgrade to the kernel versions 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3, or 6.7 as recommended by the vendor.
What products are affected by CVE-2023-52798?
CVE-2023-52798 affects various releases of the Linux kernel across multiple versions.
What does CVE-2023-52798 involve?
CVE-2023-52798 involves a locking issue in the DFS radar event handling code affecting ath11k active pdevs.
Is there a workaround for CVE-2023-52798?
There is no specified workaround for CVE-2023-52798; the recommended action is to upgrade to a patched kernel.
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