CVE - CVE-2022-49914

CVE-ID
CVE-2022-49914	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix inode list leak during backref walking at resolve_indirect_refs() During backref walking, at resolve_indirect_refs(), if we get an error we jump to the 'out' label and call ulist_free() on the 'parents' ulist, which frees all the elements in the ulist - however that does not free any inode lists that may be attached to elements, through the 'aux' field of a ulist node, so we end up leaking lists if we have any attached to the unodes. Fix this by calling free_leaf_list() instead of ulist_free() when we exit from resolve_indirect_refs(). The static function free_leaf_list() is moved up for this to be possible and it's slightly simplified by removing unnecessary code.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2c0329406bb28109c07c6e23e5e3e0fa618a95d7 URL:https://git.kernel.org/stable/c/2c0329406bb28109c07c6e23e5e3e0fa618a95d7 MISC:https://git.kernel.org/stable/c/396515db923ad5cbeb179d6b88927870b4cbebb7 URL:https://git.kernel.org/stable/c/396515db923ad5cbeb179d6b88927870b4cbebb7 MISC:https://git.kernel.org/stable/c/5614dc3a47e3310fbc77ea3b67eaadd1c6417bf1 URL:https://git.kernel.org/stable/c/5614dc3a47e3310fbc77ea3b67eaadd1c6417bf1 MISC:https://git.kernel.org/stable/c/6ba3479f9e96b9ad460c7e77abc26dd16e5dec4f URL:https://git.kernel.org/stable/c/6ba3479f9e96b9ad460c7e77abc26dd16e5dec4f MISC:https://git.kernel.org/stable/c/a52e24c7fcc3c5ce3588a14e3663c00868d36623 URL:https://git.kernel.org/stable/c/a52e24c7fcc3c5ce3588a14e3663c00868d36623 MISC:https://git.kernel.org/stable/c/b1dc9019bb5f89abae85645de1a2dd4830c1f8e9 URL:https://git.kernel.org/stable/c/b1dc9019bb5f89abae85645de1a2dd4830c1f8e9 MISC:https://git.kernel.org/stable/c/cded2c89774b99b67c98147ae103ea878c92a206 URL:https://git.kernel.org/stable/c/cded2c89774b99b67c98147ae103ea878c92a206
Assigning CNA
kernel.org
Date Record Created
20250501	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250501)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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