Trond Myklebust 51899eefd1 NFSv4.2: Fix a memory stomp in decode_attr_security_label ...

[ Upstream commit 43c1031f7110967c240cb6e922adcfc4b8899183 ]

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

Fixes: b4487b9354 ("nfs: Fix getxattr kernel panic and memory overflow")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-12-31 13:14:13 +01:00

200 KiB

Raw Blame History

View Raw