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CVE-2022-50852 wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()

🗓️ 30 Dec 2025 12:15:28Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

Fixed use after free in mt7921_acpi_read for mt76 mt7921 by not dereferencing sar_root after free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
AstraLinux
Astra Linux - уязвимость в linux-5.10
20 May 202605:53
astralinux
CNNVD
Linux kernel 安全漏洞
30 Dec 202500:00
cnnvd
CVE
CVE-2022-50852
30 Dec 202512:15
cve
Debian CVE
CVE-2022-50852
30 Dec 202512:15
debiancve
EUVD
EUVD-2022-55846
30 Dec 202515:30
euvd
NVD
CVE-2022-50852
30 Dec 202513:15
nvd
OSV
CVE-2022-50852 wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()
30 Dec 202512:15
osv
OSV
DEBIAN-CVE-2022-50852
30 Dec 202513:15
osv
OSV
UBUNTU-CVE-2022-50852
30 Dec 202513:15
osv
Positive Technologies
PT-2025-53970
30 Dec 202500:00
ptsecurity
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/mediatek/mt76/mt7921/acpi_sar.c"
    ],
    "versions": [
      {
        "version": "f965333e491e36adb0fa91e389fba8685b704fb6",
        "lessThan": "3ed0b382cb36f6dac9f93b3a5533cfcd699409a5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f965333e491e36adb0fa91e389fba8685b704fb6",
        "lessThan": "e7de4b4979bd8d313ec837931dde936653ca82ea",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/mediatek/mt76/mt7921/acpi_sar.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.3",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 19:26Current
EPSS0.00026
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