In the Linux kernel, the following vulnerability has been resolved: ceph: don't leak snap_rwsem in handle_cap_grant When handle_cap_grant is called on an IMPORT op, then the snap_rwsem is held and the function is expected to release it before returning. It currently fails to do that in all cases which could lead to a deadlock.
https://git.kernel.org/stable/c/f546faa216d0f53a42ca73ba1fd8c48765b22d77
https://git.kernel.org/stable/c/aee18421bda6bf12a7cba6a3d7751c0e1cfd0094
https://git.kernel.org/stable/c/a090cc69699ec2d11b5e34cee8c61f0d4b0068cb
https://git.kernel.org/stable/c/58dd4385577ed7969b80cdc9e2a31575aba6c712