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CVE-2022-49912 – Linux Btrfs Ulist Leak

The following table lists the changes that have been made to the
CVE-2022-49912 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 01, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved:

    btrfs: fix ulist leaks in error paths of qgroup self tests

    In the test_no_shared_qgroup() and test_multiple_refs() qgroup self tests,
    if we fail to add the tree ref, remove the extent item or remove the
    extent ref, we are returning from the test function without freeing the
    “old_roots” ulist that was allocated by the previous calls to
    btrfs_find_all_roots(). Fix that by calling ulist_free() before returning.
    Added Reference https://git.kernel.org/stable/c/0a0dead4ad1a2e2a9bdf133ef45111d7c8daef84
    Added Reference https://git.kernel.org/stable/c/203204798831c35d855ecc6417d98267d2d2184b
    Added Reference https://git.kernel.org/stable/c/3f58283d83a588ff5da62fc150de19e798ed2ec2
    Added Reference https://git.kernel.org/stable/c/5d1a47ebf84540e40b5b43fc21aef0d6c0f627d9
    Added Reference https://git.kernel.org/stable/c/d37de92b38932d40e4a251e876cc388f9aee5f42
    Added Reference https://git.kernel.org/stable/c/d81370396025cf63a7a1b5f8bb25a3479203b2ca
    Added Reference https://git.kernel.org/stable/c/da7003434bcab0ae9aba3f2c003e734cae093326
    Added Reference https://git.kernel.org/stable/c/f46ea5fa3320dca4fe0c0926b49a5f14cb85de62
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