PT-2024-9891 · Linux+6 · Linux Kernel+6
Published
2024-05-08
·
Updated
2025-09-29
·
CVE-2024-39482
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to the bcache component of the Linux kernel, specifically with the
btree iter function. This function 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, causing UBSAN to complain. The 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.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
Allocation of Resources Without Limits
Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu