Commit b2b472bc authored by Trond Myklebust's avatar Trond Myklebust Committed by Greg Kroah-Hartman
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NFSv4.2: Fix a memory stomp in decode_attr_security_label 



[ Upstream commit 43c1031f ]

We must not change the value of label->len if it is zero, since that
indicates we stored a label.

Fixes: b4487b93 ("nfs: Fix getxattr kernel panic and memory overflow")
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 96f3c706
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