This is a note to let you know that I've just added the patch titled ksmbd: downgrade ndr version error message to debug to the 5.15-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: ksmbd-downgrade-ndr-version-error-message-to-debug.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From a34dc4a9b9e2fb3a45c179a60bb0b26539c96189 Mon Sep 17 00:00:00 2001 From: Namjae Jeon <linkinjeon@xxxxxxxxxx> Date: Wed, 25 Jan 2023 00:09:02 +0900 Subject: ksmbd: downgrade ndr version error message to debug From: Namjae Jeon <linkinjeon@xxxxxxxxxx> commit a34dc4a9b9e2fb3a45c179a60bb0b26539c96189 upstream. When user switch samba to ksmbd, The following message flood is coming when accessing files. Samba seems to changs dos attribute version to v5. This patch downgrade ndr version error message to debug. $ dmesg ... [68971.766914] ksmbd: v5 version is not supported [68971.779808] ksmbd: v5 version is not supported [68971.871544] ksmbd: v5 version is not supported [68971.910135] ksmbd: v5 version is not supported ... Cc: stable@xxxxxxxxxxxxxxx Fixes: e2f34481b24d ("cifsd: add server-side procedures for SMB3") Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxxx> Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/ksmbd/ndr.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/fs/ksmbd/ndr.c +++ b/fs/ksmbd/ndr.c @@ -242,7 +242,7 @@ int ndr_decode_dos_attr(struct ndr *n, s return ret; if (da->version != 3 && da->version != 4) { - pr_err("v%d version is not supported\n", da->version); + ksmbd_debug(VFS, "v%d version is not supported\n", da->version); return -EINVAL; } @@ -251,7 +251,7 @@ int ndr_decode_dos_attr(struct ndr *n, s return ret; if (da->version != version2) { - pr_err("ndr version mismatched(version: %d, version2: %d)\n", + ksmbd_debug(VFS, "ndr version mismatched(version: %d, version2: %d)\n", da->version, version2); return -EINVAL; } @@ -453,7 +453,7 @@ int ndr_decode_v4_ntacl(struct ndr *n, s if (ret) return ret; if (acl->version != 4) { - pr_err("v%d version is not supported\n", acl->version); + ksmbd_debug(VFS, "v%d version is not supported\n", acl->version); return -EINVAL; } @@ -461,7 +461,7 @@ int ndr_decode_v4_ntacl(struct ndr *n, s if (ret) return ret; if (acl->version != version2) { - pr_err("ndr version mismatched(version: %d, version2: %d)\n", + ksmbd_debug(VFS, "ndr version mismatched(version: %d, version2: %d)\n", acl->version, version2); return -EINVAL; } Patches currently in stable-queue which might be from linkinjeon@xxxxxxxxxx are queue-5.15/ksmbd-downgrade-ndr-version-error-message-to-debug.patch queue-5.15/ksmbd-limit-pdu-length-size-according-to-connection-status.patch queue-5.15/ksmbd-add-max-connections-parameter.patch queue-5.15/ksmbd-do-not-sign-response-to-session-request-for-guest-login.patch queue-5.15/ksmbd-add-smbd-max-io-size-parameter.patch