CVE - CVE-2024-41078

CVE-ID
CVE-2024-41078	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: qgroup: fix quota root leak after quota disable failure If during the quota disable we fail when cleaning the quota tree or when deleting the root from the root tree, we jump to the 'out' label without ever dropping the reference on the quota root, resulting in a leak of the root since fs_info->quota_root is no longer pointing to the root (we have set it to NULL just before those steps). Fix this by always doing a btrfs_put_root() call under the 'out' label. This is a problem that exists since qgroups were first added in 2012 by commit bed92eae26cc ("Btrfs: qgroup implementation and prototypes"), but back then we missed a kfree on the quota root and free_extent_buffer() calls on its root and commit root nodes, since back then roots were not yet reference counted.
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/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 URL:https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 MISC:https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff URL:https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff MISC:https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf URL:https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf MISC:https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 URL:https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 MISC:https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 URL:https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 MISC:https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d URL:https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d
Assigning CNA
kernel.org
Date Record Created
20240712	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 (20240712)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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