CVEvulnerability
CVE-2023-52776
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2024-05-21
- Last modified
- 2026-08-04
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-416
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: fix dfs-radar and temperature event locking
The ath12k active pdevs are protected by RCU but the DFS-radar and
temperature event handling code calling ath12k_mac_get_ar_by_pdev_id()
was not marked as a read-side critical section.
Mark the code in question as RCU read-side critical sections to avoid
any potential use-after-free issues.
Note that the temperature event handler looks like a place holder
currently but would still trigger an RCU lockdep splat.
Compile tested only.
Affected configurations
• linux linux kernel (>= 6.3 < 6.5.13)
• linux linux kernel (>= 6.6 < 6.6.3)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/69bd216e049349886405b1c87a55dce3d35d1ba7 Patch
- https://git.kernel.org/stable/c/774de37c147fea81f2c2e4be5082304f4f71d535 Patch
- https://git.kernel.org/stable/c/d7a5f7f76568e48869916d769e28b9f3ca70c78e Patch
- https://git.kernel.org/stable/c/69bd216e049349886405b1c87a55dce3d35d1ba7 Patch
- https://git.kernel.org/stable/c/774de37c147fea81f2c2e4be5082304f4f71d535 Patch
- https://git.kernel.org/stable/c/d7a5f7f76568e48869916d769e28b9f3ca70c78e Patch