DEBIAN-CVE-2024-39482
Record from OSV · Published July 5, 2024
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:13 | 6.9.7-1 |
| linux | Debian:14 | 6.9.7-1 |
| linux | Debian:12 | 6.1.94-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0 |
| Debian:14 | linux | 0 |
| Debian:12 | linux | 6.1.27-1, 6.1.37-1, 6.1.38-1 |
Timeline
- Jul 5, 2024 CVE Published
- Oct 15, 2026 CVE Updated
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