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(parent: 4fb5dda) | patch
ceph: fix potential race in ceph_check_caps
authorJeff Layton <jlayton@kernel.org>
Fri, 20 Mar 2020 20:45:45 +0000 (16:45 -0400)
committerIlya Dryomov <idryomov@gmail.com>
Mon, 1 Jun 2020 11:22:52 +0000 (13:22 +0200)
commitdc3da0461cc4b76f2d0c5b12247fcb3b520edbbf
treea4f408a4f23b07ff2aab8a9875cdc84257a39f8atree | snapshot
parent4fb5dda39c26fa5b64059dac0a2c3340a4f6f11bcommit | diff
ceph: fix potential race in ceph_check_caps

Nothing ensures that session will still be valid by the time we
dereference the pointer. Take and put a reference.

In principle, we should always be able to get a reference here, but
throw a warning if that's ever not the case.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
fs/ceph/caps.c diff | blob | history
Domain: System / Kernel;