Linux Kernel versions 6.12.86 and 6.18.27 have been released, addressing numerous memory safety issues across various subsystems, including the networking stack, storage, and graphics drivers. These updates fix critical vulnerabilities such as use-after-free conditions and initialization crashes that can lead to system instability under load. Additionally, the releases enhance security with stricter crypto validation and improvements in virtualization consistency to prevent guest VM issues. Users of older LTS branches are encouraged to apply these updates for improved stability and to mitigate unexpected crashes and memory leaks during regular operations

Linux Kernel 6.12.86 and 6.18.27 released

The latest stable LTS kernel updates tackle a heavy batch of memory safety issues across the networking stack, patching use-after-free races and routing cache bugs that routinely crash systems under load. Storage and filesystem code gets tighter bounds checking to stop out-of-bounds reads on corrupted images while fixing deadlock loops in journaling and RAID stripe handling. Graphics and peripheral drivers finally resolve initialization crashes on RDNA4 hardware, clean up resource leaks during probe failures, and correct audio notification logic that was flooding userspace with false events. Security hardening rounds out the release with stricter crypto digest validation, KVM nested virtualization consistency checks, and relaxed userfaultfd restrictions to keep sandboxed workloads running smoothly.

Linux Kernel 6.12.86 and 6.18.27 released @ Linux Compatible