From 349eb7df66079bb70d3d89e3c5974f5202bff202 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 14 Feb 2023 10:07:59 -0500 Subject: [PATCH] NFSD: copy the whole verifier in nfsd_copy_write_verifier [ Upstream commit 90d2175572470ba7f55da8447c72ddd4942923c4 ] Currently, we're only memcpy'ing the first __be32. Ensure we copy into both words. Fixes: 91d2e9b56cf5 ("NFSD: Clean up the nfsd_net::nfssvc_boot field") Reported-by: Jeff Layton Signed-off-by: Chuck Lever Signed-off-by: Sasha Levin --- fs/nfsd/nfssvc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index 8b1afde..6b20f28 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -357,7 +357,7 @@ void nfsd_copy_write_verifier(__be32 verf[2], struct nfsd_net *nn) do { read_seqbegin_or_lock(&nn->writeverf_lock, &seq); - memcpy(verf, nn->writeverf, sizeof(*verf)); + memcpy(verf, nn->writeverf, sizeof(nn->writeverf)); } while (need_seqretry(&nn->writeverf_lock, seq)); done_seqretry(&nn->writeverf_lock, seq); } -- 2.7.4