Answer in brief
CVE-2024-39482 records a Unknown severity vulnerability in bcache: fix variable length array abuse in btree_iter. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=cafe563591446cf80bfbc2fe3bc72a2e36cf1060 <2c3d7b03b658dc8bfa6112b194b67b92a87e081b || >=cafe563591446cf80bfbc2fe3bc72a2e36cf1060 <5a1922adc5798b7ec894cd3f197afb6f9591b023 || >=cafe563591446cf80bfbc2fe3bc72a2e36cf1060 <934e1e4331859183a861f396d7dfaf33cb5afb02 || >=cafe563591446cf80bfbc2fe3bc72a2e36cf1060 <6479b9f41583b013041943c4602e1ad61cec8148 || >=cafe563591446cf80bfbc2fe3bc72a2e36cf1060 <0c31344e22dd8d6b1394c6e4c41d639015bdc671 || >=cafe563591446cf80bfbc2fe3bc72a2e36cf1060 <3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31 | 2c3d7b03b658dc8bfa6112b194b67b92a87e081b, 5a1922adc5798b7ec894cd3f197afb6f9591b023, 934e1e4331859183a861f396d7dfaf33cb5afb02, 6479b9f41583b013041943c4602e1ad61cec8148, 0c31344e22dd8d6b1394c6e4c41d639015bdc671, 3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31 |
| Linux/Linuxgeneric | 3.10 | Not reported |
| Siemens/RUGGEDCOM RST2428Pgeneric | >=0 <V3.1 | V3.1 |
| Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 familygeneric | >=0 <V3.1 | V3.1 |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Jul 5, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.