CVE-2023-52776

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 774de37c147fea81f2c2e4be5082304f4f71d535affected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < d7a5f7f76568e48869916d769e28b9f3ca70c78eaffected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 69bd216e049349886405b1c87a55dce3d35d1ba7affected
LinuxLinux6.3affected
LinuxLinux0 < 6.3unaffected
LinuxLinux6.5.13 <= 6.5.*unaffected
LinuxLinux6.6.3 <= 6.6.*unaffected
LinuxLinux6.7 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References