VYPR
← All advisories
Medium severity5.5NVD Advisory· Published Jul 5, 2024· Updated Jun 17, 2026

CVE-2024-39482

CVE-2024-39482

Description

In the Linux kernel, the following vulnerability has been resolved:

bcache: fix variable length array abuse in btree_iter

btree_iter is used in two ways: either allocated on the stack with a fixed size MAX_BSETS, or from a mempool with a dynamic size based on the specific cache set. Previously, the struct had a fixed-length array of size MAX_BSETS which was indexed out-of-bounds for the dynamically-sized iterators, which causes UBSAN to complain.

This patch uses the same approach as in bcachefs's sort_iter and splits the iterator into a btree_iter with a flexible array member and a btree_iter_stack which embeds a btree_iter as well as a fixed-length data array.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

98

Patches

Vulnerability mechanics

References

9

News mentions

0

No linked articles in our index yet.