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authorTrond Myklebust <trond.myklebust@hammerspace.com>2020-04-01 16:07:16 +0200
committerTrond Myklebust <trond.myklebust@hammerspace.com>2020-04-01 16:11:22 +0200
commitadd42de31721fa29ed77a7ce388674d69f9d31a4 (patch)
treed2a9b82eda0f38418cacec7e2fe7d742fcb502b6 /fs/nfs/write.c
parentMerge tag 'nfs-rdma-for-5.7-1' of git://git.linux-nfs.org/projects/anna/linux... (diff)
downloadlinux-add42de31721fa29ed77a7ce388674d69f9d31a4.tar.xz
linux-add42de31721fa29ed77a7ce388674d69f9d31a4.zip
NFS: Fix a page leak in nfs_destroy_unlinked_subrequests()
When we detach a subrequest from the list, we must also release the reference it holds to the parent. Fixes: 5b2b5187fa85 ("NFS: Fix nfs_page_group_destroy() and nfs_lock_and_join_requests() race cases") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to '')
-rw-r--r--fs/nfs/write.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 03b7f64f7c4f..626e99cbb50e 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -444,6 +444,7 @@ nfs_destroy_unlinked_subrequests(struct nfs_page *destroy_list,
}
subreq->wb_head = subreq;
+ nfs_release_request(old_head);
if (test_and_clear_bit(PG_INODE_REF, &subreq->wb_flags)) {
nfs_release_request(subreq);