Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: btrfs: exit after state insertion failure at btrfs_convert_extent_bit() If insert_state() state failed it returns an error pointer and we call extent_io_tree_panic() which will trigger a BUG() call. However if CONFIG_BUG is disabled, which is an uncommon and exotic scenario, then we fallthrough and call cache_state() which will dereference the error pointer, resulting in an invalid memory access. So jump to the 'out' label after calling extent_io_tree_panic(), it also makes the code more clear besides dealing with the exotic scenario where CONFIG_BUG is disabled.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c91ea4bfa6dda549295ea7c15dfc990094d1fcd3 before 58c50f45e1821a04d61b62514f9bd34afe67c622; affected c91ea4bfa6dda549295ea7c15dfc990094d1fcd3 before 8d9d32088e304e2bc444a3087cab0bbbd9951866; affected c91ea4bfa6dda549295ea7c15dfc990094d1fcd3 before 3bf179e36da917c5d9bec71c714573ed1649b7c1 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.12.34 through 6.12.*; unaffected 6.15.3 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.