Multiple vulnerabilities in the Linux kernel, including flaws in the AppArmor LSM, allow an unprivileged local attacker to manipulate AppArmor profiles, potentially leading to denial of service, information disclosure, privilege escalation, or container escape. The article references several CVEs, including CVE-2021-47599 (CVSS 4.7), CVE-2022-48875 (CVSS 5.5), and CVE-2022-49072 (CVSS 5.5), with affected version ranges and fixed versions detailed in the provided NVD data. The update corrects flaws across numerous subsystems, and specific patched kernel versions are listed in the NVD entries for each CVE.
Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information (kernel memory), local privilege escalation, or possibly escape a container. (LP: #2143853) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - GPIO subsystem; - GPU drivers; - MMC subsystem; - BTRFS file system; - XFRM subsystem; - IPv4 networking; - IPv6 networking; - MAC80211 subsystem; - SMC sockets; (CVE-2021-47599, CVE-2022-48875, CVE-2022-49072, CVE-2022-49267, CVE-2024-49927, CVE-2024-56640, CVE-2025-21780, CVE-2025-40215)