CVE-2023-52776
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.85% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/69bd216e049349886405b1c87a55dce3d35d1ba7Patch
- https://git.kernel.org/stable/c/774de37c147fea81f2c2e4be5082304f4f71d535Patch
- https://git.kernel.org/stable/c/d7a5f7f76568e48869916d769e28b9f3ca70c78ePatch
- https://git.kernel.org/stable/c/69bd216e049349886405b1c87a55dce3d35d1ba7Patch
- https://git.kernel.org/stable/c/774de37c147fea81f2c2e4be5082304f4f71d535Patch
- https://git.kernel.org/stable/c/d7a5f7f76568e48869916d769e28b9f3ca70c78ePatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.