Matthias Ferdinand

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The issue is related to the bcache feature in the Linux kernel, specifically in the cache missing code path. A potential kernel panic can occur due to an oversized read request. The `cached dev cache miss()` function is called when a cache miss range is matched in the internal B+ tree, and the `sectors` parameter is used to calculate the size of the read request. However, the current calculation may generate an oversized value of `sectors`, leading to two potential kernel panics: one caused by `BUG ON()` inside `bch btree insert key()` and another caused by `BUG()` inside `biovec slab()`. The oversized `sectors` parameter can trigger these panics by causing an overflow in the bkey size calculation. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.