From: Namjae Jeon <linkinjeon@kernel.org>
Date: Fri, 13 Mar 2026 01:00:58 +0000 (+0900)
Subject: ksmbd: unset conn->binding on failed binding request
X-Git-Tag: v7.0-rc5~28^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=282343cf8a4a5a3603b1cb0e17a7083e4a593b03;p=thirdparty%2Fkernel%2Flinux.git

ksmbd: unset conn->binding on failed binding request

When a multichannel SMB2_SESSION_SETUP request with
SMB2_SESSION_REQ_FLAG_BINDING fails ksmbd sets conn->binding = true
but never clears it on the error path. This leaves the connection in
a binding state where all subsequent ksmbd_session_lookup_all() calls
fall back to the global sessions table. This fix it by clearing
conn->binding = false in the error path.

Cc: stable@vger.kernel.org
Reported-by: Hyunwoo Kim <imv4bel@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 9f7ff7491e9a..78d2d79d09b4 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -1948,6 +1948,7 @@ out_err:
 			}
 		}
 		smb2_set_err_rsp(work);
+		conn->binding = false;
 	} else {
 		unsigned int iov_len;