It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier has been removed. (CVE-2023-1829)
It was discovered that a race condition existed in the io_uring subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-1872)
5.15.0-1035.39~20.04.15.15.0-1032.37~20.04.15.15.0-71.78~20.04.15.15.0-71.78~20.04.15.15.0-1034.40~20.04.15.15.0-71.785.15.0-1035.395.15.0-1037.445.15.0-1032.375.15.0-1019.245.15.0-1029.325.15.0-71.785.15.0-1034.40