Riskcovery

CVE-2023-52776

wifi: ath12k: fix dfs-radar and temperature event locking

State
Published
Severity
8.8 High
Published
May 21, 2024
Updated
Aug 5, 2026
Reserved
May 21, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
3.15.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NCISA-ADP

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 774de37c147fea81f2c2e4be5082304f4f71d535Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before d7a5f7f76568e48869916d769e28b9f3ca70c78eAffected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 69bd216e049349886405b1c87a55dce3d35d1ba7Affected
LinuxLinux
  • 6.3Affected
  • before 6.3Not affected
  • 6.5.13 through 6.5.*Not affected
  • 6.6.3 through 6.6.*Not affected
  • 6.7 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.