CVE-2022-49833 (GCVE-0-2022-49833)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2025-05-20 14:35
VLAI?
Title
btrfs: zoned: clone zoned device info when cloning a device
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5b316468983dfa9473ff0f1c42e4e30b4c267141 , < ad88cabcec942c033f980cd1e28d56ecdaf5f3b8 (git)
Affected: 5b316468983dfa9473ff0f1c42e4e30b4c267141 , < 21e61ec6d0bb786818490e926aa9aeb4de95ad0d (git)
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    Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 6.0.9 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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          "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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    "datePublished": "2025-05-01T14:09:51.387Z",
    "dateReserved": "2025-05-01T14:05:17.228Z",
    "dateUpdated": "2025-05-20T14:35:37.685Z",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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