CVE-2026-43438

In the Linux kernel, the following vulnerability has been resolved: schedext: Remove redundant cssput in scxcgroupinit The iterator cssforeachdescendantpre walks the cgroup hierarchy under cgrouplock. It does not increment the reference counts on yielded css structs. According to the cgroup...

CVE-2026-43438

CVE-2026-43438 involves a Linux kernel sched_ext issue where a redundant css_put() call in scx_cgroup_init() can trigger a refcount underflow during iterations of css_for_each_descendant_pre(). The iterator walks the cgroup hierarchy under cgroup_lock() and does not acquire references with css_ge...