[PATCH 1/3] nfsd: copy the whole verifier in nfsd_copy_write_verifier
From: Jeff Layton <jlayton@kernel.org>
Date: 2023-02-13 21:13:52
Subsystem:
filesystems (vfs and infrastructure), kernel nfsd, sunrpc, and lockd servers, the rest · Maintainers:
Alexander Viro, Christian Brauner, Chuck Lever, Jeff Layton, Linus Torvalds
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) Signed-off-by: Jeff Layton <jlayton@kernel.org> --- 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 fe5e4f73bb98..3a38ab304b02 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c@@ -363,7 +363,7 @@ 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(*verf) * 2); } while (need_seqretry(&nn->writeverf_lock, seq)); done_seqretry(&nn->writeverf_lock, seq); }
--
2.39.1