A flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user space, resulting in a null-ptr-deref vulnerability and a use-after-free vulnerability.
https://www.openwall.com/lists/oss-security/2022/04/02/5
https://security.netapp.com/advisory/ntap-20221228-0006/
https://github.com/torvalds/linux/commit/7ec02f5ac8a5be5a3f20611731243dc5e1d9ba10
https://github.com/torvalds/linux/commit/71171ac8eb34ce7fe6b3267dce27c313ab3cb3ac
https://github.com/torvalds/linux/commit/4e0f718daf97d47cf7dec122da1be970f145c809