{"id":"CVE-2026-99167","published":"2026-10-28T11:17:37.173","lastModified":"2026-10-28T11:17:37.173","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: fix use-after-free in __tcf_action_put()\n\n__tcf_action_put() decrements the reference count before decrementing the\nbinding count. Another thread can free the action between these operations,\ncausing the binding-count update to access freed memory. KASAN reports it\nas:\n\n  BUG: KASAN: slab-use-after-free in __tcf_action_put+0x327/0x340\n  Write of size 4 at addr ff11000000d46420 by task tc-put-pause/64\n\nHold the action IDR mutex across both counter updates and IDR removal,\nkeeping cleanup outside the lock.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/2465d27ef90de9105c2bffb6c35f8ce08918e642","tags":[]},{"url":"https://git.kernel.org/stable/c/2e012e431aa271ef3c84206f48854f539c03bff0","tags":[]},{"url":"https://git.kernel.org/stable/c/7b16eb911091aae237a8673da94e4dfb9cd21d54","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}