CVE-2023-52798 wifi: ath11k: fix dfs radar event locking

2024-05-2115:31:11

Linux

github.com

linux kernel

ath11k wifi

dfs radar event locking

AI Score

Confidence

Low

EPSS

Percentile

10.3%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "d5c65159f289",
        "lessThan": "f882f5190551",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f289",
        "lessThan": "426e718ce9ba",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f289",
        "lessThan": "ca420ac4f945",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f289",
        "lessThan": "1fd878e17501",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f289",
        "lessThan": "21ebb0aba580",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f289",
        "lessThan": "3b6c14833165",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/ath/ath11k/wmi.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.6"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.6",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "5.10.202",
        "versionType": "custom",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.140",
        "versionType": "custom",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.64",
        "versionType": "custom",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.5.13",
        "versionType": "custom",
        "lessThanOrEqual": "6.5.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.3",
        "versionType": "custom",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.7",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/ath/ath11k/wmi.c"
    ],
    "defaultStatus": "affected"
  }
]