This is a note to let you know that I've just added the patch titled NFSD: copy the whole verifier in nfsd_copy_write_verifier to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: nfsd-copy-the-whole-verifier-in-nfsd_copy_write_veri.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 3bbc3cc08402e423e94a502685bfb99dfe0543ea Author: Chuck Lever <chuck.lever@xxxxxxxxxx> Date: Tue Feb 14 10:07:59 2023 -0500 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 <jlayton@xxxxxxxxxx> Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index 8b1afde192118..6b20f285f3ca6 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); }