CVE-2024-39482
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-39482
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-39482.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-39482
- Downstream
- Related
- Published
- 2024-07-05T06:55:10.599Z
- Modified
- 2025-11-27T02:33:05.354120Z
- Summary
- bcache: fix variable length array abuse in btree_iter
- 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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/cc431b3424123d84bcd7afd4de150b33f117a8ef/cves/2024/39xxx/CVE-2024-39482.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0c31344e22dd8d6b1394c6e4c41d639015bdc671
- https://git.kernel.org/stable/c/2c3d7b03b658dc8bfa6112b194b67b92a87e081b
- https://git.kernel.org/stable/c/3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31
- https://git.kernel.org/stable/c/5a1922adc5798b7ec894cd3f197afb6f9591b023
- https://git.kernel.org/stable/c/6479b9f41583b013041943c4602e1ad61cec8148
- https://git.kernel.org/stable/c/934e1e4331859183a861f396d7dfaf33cb5afb02
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcafe563591446cf80bfbc2fe3bc72a2e36cf1060Fixed2c3d7b03b658dc8bfa6112b194b67b92a87e081b
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcafe563591446cf80bfbc2fe3bc72a2e36cf1060Fixed5a1922adc5798b7ec894cd3f197afb6f9591b023
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcafe563591446cf80bfbc2fe3bc72a2e36cf1060Fixed934e1e4331859183a861f396d7dfaf33cb5afb02
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcafe563591446cf80bfbc2fe3bc72a2e36cf1060Fixed6479b9f41583b013041943c4602e1ad61cec8148
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcafe563591446cf80bfbc2fe3bc72a2e36cf1060Fixed0c31344e22dd8d6b1394c6e4c41d639015bdc671
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcafe563591446cf80bfbc2fe3bc72a2e36cf1060Fixed3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31