CVE-2026-43075
Description
A flaw was found in the Linux kernel's ocfs2 filesystem component. This vulnerability allows a local attacker, by mounting a specially crafted and corrupted ocfs2 filesystem on a loop device, to trigger an out-of-bounds write. This occurs because the system incorrectly trusts the id_count field from the on-disk filesystem, which can lead to memory corruption. The most significant consequence is potential system instability or denial of service.
Understanding the Weakness (CWE)
Other,Integrity,Availability
Technical Impact: Varies by Context; DoS: Resource Consumption (CPU); Modify Memory; Read Memory
When the quantity is not properly validated, then attackers can specify malicious quantities to cause excessive resource allocation, trigger unexpected failures, enable buffer overflows, etc.
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