In the Linux kernel, the following vulnerability has been resolved:

usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()

  ...
  cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request);
  list_del_init(&priv_req->list);
  ...

'priv_req' actually free at cdns3_gadget_ep_free_request(). But
list_del_init() use priv_req->list after it.

[ 1542.642868][  T534] BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xd4
[ 1542.642868][  T534]
[ 1542.653162][  T534] Use-after-free read at 0x000000009ed0ba99 (in kfence-#3):
[ 1542.660311][  T534]  __list_del_entry_valid+0x10/0xd4
[ 1542.665375][  T534]  cdns3_gadget_ep_disable+0x1f8/0x388 [cdns3]
[ 1542.671571][  T534]  usb_ep_disable+0x44/0xe4
[ 1542.675948][  T534]  ffs_func_eps_disable+0x64/0xc8
[ 1542.680839][  T534]  ffs_func_set_alt+0x74/0x368
[ 1542.685478][  T534]  ffs_func_disable+0x18/0x28

Move list_del_init() before cdns3_gadget_ep_free_request() to resolve this
problem.

kernel.org https://git.kernel.org/stable/c/2134e9906e17b1e5284300fab547869ebacfd7d9 [No types assigned]

kernel.org https://git.kernel.org/stable/c/29e42e1578a10c611b3f1a38f3229b2d664b5d16 [No types assigned]

kernel.org https://git.kernel.org/stable/c/4e5c73b15d95452c1ba9c771dd013a3fbe052ff3 [No types assigned]

kernel.org https://git.kernel.org/stable/c/9a07244f614bc417de527b799da779dcae780b5d [No types assigned]

kernel.org https://git.kernel.org/stable/c/b40328eea93c75a5645891408010141a0159f643 [No types assigned]

kernel.org https://git.kernel.org/stable/c/cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6 [No types assigned]

kernel.org https://git.kernel.org/stable/c/cfa9abb5570c489dabf6f7fb3a066cc576fc8824 [No types assigned]