kernel: ceph: fix potential use-after-free bug when trimming caps

A use-after-free vulnerability was found in the Linux kernel's Ceph filesystem client. When iterating over session caps in cephiteratesessioncaps, the session-scaplock is released temporarily, allowing another thread to remove the cap. If the cap is freed while the iteration continues, subsequent...

kernel: ceph: fix potential use-after-free bug when trimming caps

A use-after-free vulnerability was found in the Linux kernel's Ceph filesystem client. When iterating over session caps in cephiteratesessioncaps, the session-scaplock is released temporarily, allowing another thread to remove the cap. If the cap is freed while the iteration continues, subsequent...