AZL-43264
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-43264.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-43264
- Upstream
- Published
- 2024-07-05T07:15:10Z
- Modified
- 2026-04-01T05:15:02.261476Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- CVE-2024-39482 affecting package kernel for versions less than 5.15.162.2-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bcache: fix variable length array abuse in btree_iter
btreeiter is used in two ways: either allocated on the stack with a fixed size MAXBSETS, 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 sortiter and splits the iterator into a btreeiter with a flexible array member and a btreeiterstack which embeds a btree_iter as well as a fixed-length data array.
- References