Tino Keitel

**Name of the Vulnerable Software and Affected Versions** runit version 1.3.3-1 **Description** The issue arises from improper handling of multiple groups specified in the -u option by chpst in runit. This causes chpst to assign permissions for the root group due to inconsistent bit sizes for the `gid t` type when compiled on little endian i386 machines against dietlibc. **Recommendations** For runit version 1.3.3-1, consider avoiding the use of multiple groups with the -u option until a fix is available. As a temporary workaround, restrict the use of the -u option to a single group to minimize the risk of exploitation.