Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: btrfs: remove BUG() after failure to insert delayed dir index item Instead of calling BUG() when we fail to insert a delayed dir index item into the delayed node's tree, we can just release all the resources we have allocated/acquired before and return the error to the caller. This is fine because all existing call chains undo anything they have done before calling btrfs_insert_delayed_dir_index() or BUG_ON (when creating pending snapshots in the transaction commit path). So remove the BUG() call and do proper error handling. This relates to a syzbot report linked below, but does not fix it because it only prevents hitting a BUG(), it does not fix the issue where somehow we attempt to use twice the same index number for different index items.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9b378f6ad48cfa195ed868db9123c09ee7ec5ea2 before d10fd53393cc5de4b9cf1a4b8f9984f0a037aa51; affected 9b378f6ad48cfa195ed868db9123c09ee7ec5ea2 before 2c58c3931ede7cd08cbecf1f1a4acaf0a04a41a9; affected 79cf35e16dd5b8639909d4df957503b84de30406; affected 5441532ffc9c8c9f7cab0f8722e6d60a0b5e1259; affected 5.15.149 before 5.16; affected 6.4.12 before 6.5 |
| Linux / Linux | affected 6.5; unaffected 0 before 6.5; unaffected 6.5.6 through 6.5.*; unaffected 6.6 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d10fd53393cc5de4b9cf1a4b8f9984f0a037aa51
- https://git.kernel.org/stable/c/2c58c3931ede7cd08cbecf1f1a4acaf0a04a41a9
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.