8.8

CVE-2023-52798

wifi: ath11k: fix dfs radar event locking

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.6 < 5.10.202
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.140
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.64
Linux ≫ Linux Kernel Version >= 6.2 < 6.5.13
Linux ≫ Linux Kernel Version >= 6.6 < 6.6.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1% 0.582
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/1fd878e1750190a612b5de2af357cca422ec0822
Patch
https://git.kernel.org/stable/c/21ebb0aba580d347e12f01ce5f6e75044427b3d5
Patch
https://git.kernel.org/stable/c/3b6c14833165f689cc5928574ebafe52bbce5f1e
Patch
https://git.kernel.org/stable/c/426e718ce9ba60013364a54233feee309356cb82
Patch
https://git.kernel.org/stable/c/ca420ac4f9451f22347bae44b18ab47ba2c267ec
Patch
https://git.kernel.org/stable/c/f882f51905517575c9f793a3dff567af90ef9a10
Patch