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NFS: Fix use-after-free issues in nfs_pageio_add_request()
authorTrond Myklebust <trond.myklebust@hammerspace.com>
Sun, 29 Mar 2020 23:55:05 +0000 (19:55 -0400)
committerTrond Myklebust <trond.myklebust@hammerspace.com>
Wed, 1 Apr 2020 17:37:56 +0000 (13:37 -0400)
commitdc9dc2febb17f72e9878eb540ad3996f7984239a
treeebe5d0a572a1584384969fd3612853b1ae776a84tree | snapshot
parent08ca8b21f760c0ed5034a5c122092eec22ccf8f4commit | diff
NFS: Fix use-after-free issues in nfs_pageio_add_request()

We need to ensure that we create the mirror requests before calling
nfs_pageio_add_request_mirror() on the request we are adding.
Otherwise, we can end up with a use-after-free if the call to
nfs_pageio_add_request_mirror() triggers I/O.

Fixes: c917cfaf9bbe ("NFS: Fix up NFS I/O subrequest creation")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
fs/nfs/pagelist.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)