PT-2025-3305 · Linux+6 · Linux Kernel+6
Published
2024-12-23
·
Updated
2026-03-13
·
CVE-2024-56758
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
A vulnerability in the Linux kernel has been resolved, related to the Btrfs file system. The issue occurs when calling
btrfs read folio() to bring a folio up-to-date, which unlocks the folio, allowing a different thread to modify the mapping before calling folio lock(). This results in an invalid page, potentially leading to a crash. The crash can happen when relocating concurrently with aborting a transaction. The vulnerability is due to the failure to check if the mapping is set to NULL before calling set extent mapping(), which assumes that the mapping is not NULL.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu