Herbo Zhang

**Name of the Vulnerable Software and Affected Versions** blktrace versions 1.2.0 **Description** The issue is related to a buffer overflow in the `dev map read` function in `btt/devmap.c` due to the `device` and `devno` arrays being too small. This can be demonstrated by an invalid free when using the `btt` program with a crafted file. The exploitation of this issue may allow a remote attacker to cause a denial of service. **Recommendations** For version 1.2.0, consider disabling the `dev map read` function in `btt/devmap.c` as a temporary workaround until a patch is available. Restrict access to the `btt` program to minimize the risk of exploitation. Avoid using the `btt` program with crafted files until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.