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Fix SMB3.1.1 guest authentication to Samba

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Samba rejects SMB3.1.1 dialect (vers=3.1.1) negotiate requests from
the kernel client due to the two byte pad at the end of the negotiate
contexts.

CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
This commit is contained in:
Steve French 2017-09-18 18:18:45 -05:00
parent 12fcf66e74
commit 23586b66d8
1 changed files with 1 additions and 1 deletions
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2
fs/cifs/smb2pdu.c
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@ -439,7 +439,7 @@ assemble_neg_contexts(struct smb2_negotiate_req *req)
build_encrypt_ctxt((struct smb2_encryption_neg_context *)pneg_ctxt);
req->NegotiateContextOffset = cpu_to_le32(OFFSET_OF_NEG_CONTEXT);
req->NegotiateContextCount = cpu_to_le16(2);
inc_rfc1001_len(req, 4 + sizeof(struct smb2_preauth_neg_context) + 2
inc_rfc1001_len(req, 4 + sizeof(struct smb2_preauth_neg_context)
+ sizeof(struct smb2_encryption_neg_context)); /* calculate hash */
}
#else