Linux Kernel NTFS3 Journal Heap-based Buffer Overflow Code Execution Vulnerability
Vulnerability Details
This vulnerability allows local attackers to execute arbitrary code on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the processing of NTFS3 journal log records. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the kernel.
Additional Details
Linux has issued an update to correct this vulnerability. More details can be found at:
https://github.com/torvalds/linux/commit/5e7b598660cfa8e5af172cf4c65cffc126333307
Disclosure Timeline
- 2026-05-07 - Vulnerability reported to vendor
- 2026-09-14 - Coordinated public release of advisory
- 2026-09-14 - Advisory Updated
Credit
Meshaal (@unrealmesh)
