cve-2024-41078
Vulnerability from cvelistv5
Published
2024-07-29 15:04
Modified
2024-12-19 09:11
Severity ?
EPSS score ?
0.20% (0.3921)
Summary
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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