CVE-2022-49833 (GCVE-0-2022-49833)
Vulnerability from cvelistv5
Published
2025-05-01 14:09
Modified
2025-05-20 14:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: clone zoned device info when cloning a device When cloning a btrfs_device, we're not cloning the associated btrfs_zoned_device_info structure of the device in case of a zoned filesystem. Later on this leads to a NULL pointer dereference when accessing the device's zone_info for instance when setting a zone as active. This was uncovered by fstests' testcase btrfs/161.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5b316468983dfa9473ff0f1c42e4e30b4c267141
Version: 5b316468983dfa9473ff0f1c42e4e30b4c267141
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{
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          "programFiles": [
            "fs/btrfs/volumes.c",
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: clone zoned device info when cloning a device\n\nWhen cloning a btrfs_device, we\u0027re not cloning the associated\nbtrfs_zoned_device_info structure of the device in case of a zoned\nfilesystem.\n\nLater on this leads to a NULL pointer dereference when accessing the\ndevice\u0027s zone_info for instance when setting a zone as active.\n\nThis was uncovered by fstests\u0027 testcase btrfs/161."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-20T14:35:37.685Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/21e61ec6d0bb786818490e926aa9aeb4de95ad0d"
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      "title": "btrfs: zoned: clone zoned device info when cloning a device",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49833",
    "datePublished": "2025-05-01T14:09:51.387Z",
    "dateReserved": "2025-05-01T14:05:17.228Z",
    "dateUpdated": "2025-05-20T14:35:37.685Z",
    "state": "PUBLISHED"
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  }
}


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