CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HIn the Linux kernel, the following vulnerability has been resolved: devlink: fix net namespace reference leak in reload devlink_nl_reload_doit() calls devlink_netns_get(), which returns a net with a held reference. When the requested namespace differs from the current one and the reload action is not DRIVER_REINIT, the function returns -EOPNOTSUPP without releasing the reference. Add the missing put_net() on this error path. A flaw was found in the `devlink` component of the Linux kernel. When the `devlink_nl_reload_doit()` function is called, it may fail to release a network namespace reference under specific error conditions. This oversight occurs when the requested network namespace differs from the current one and the reload action is not DRIVER_REINIT. A local attacker could exploit this reference leak to cause resource exhaustion, leading to a Denial of Service (DoS).
Multiple vulnerabilities have been discovered in the Linux kernel of Debian. These vulnerabilities allow for privilege escalation, data compromise, and denial of service. The affected Debian versions are prior to 6.12.10…