Threats Tagged 'cve-2026-43438'
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Threats Tagged 'cve-2026-43438'
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Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: sched_ext: Remove redundant css_put() in scx_cgroup_init() The iterator… (CVE-2026-43438)CVE-2026-43438 0 In the Linux kernel, the following vulnerability has been resolved: sched_ext: Remove redundant css_put() in scx_cgroup_init() The iterator css_for_each_descendant_pre() walks the cgroup hierarchy under cgroup_lock(). It does not increment the reference counts on yielded css structs. According to the cgroup documentation, css_put() should only be used to release a reference obtained via css_get() or css_tryget_online(). Since the iterator does not use either of these to acquire a reference, calling css_put() in the error path of scx_cgroup_init() causes a refcount underflow. Remove the unbalanced css_put() to prevent a potential Use-After-Free (UAF) vulnerability. Join the discussion | GCVE Database | 05/08/2026, 15:16:00 UTC Added: 07/31/2026, 15:38:02 UTC |
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