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ksmbd: fix malformed unsupported smb1 negotiate response

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When mounting with vers=1.0, ksmbd should return unsupported smb1
negotiate response. But this response is malformed.

[ 6010.586702] CIFS: VFS: Bad protocol string signature header 0x25000000
[ 6010.586708] 00000000: 25000000 25000000 424d53ff 00000072  ...%...%.SMBr...
[ 6010.586711] 00000010: c8408000 00000000 00000000 00000000  ..@.............
[ 6010.586713] 00000020: 00 00 b9 32 00 00 01 00 01                  ...2.....

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Namjae Jeon 2024-11-13 08:49:44 +09:00 committed by Steve French
parent adc218676e
commit d6eb09fb46
1 changed files with 1 additions and 1 deletions
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2
fs/smb/server/smb_common.c
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@ -576,7 +576,7 @@ static int smb_handle_negotiate(struct ksmbd_work *work)
ksmbd_debug(SMB, "Unsupported SMB1 protocol\n");
if (ksmbd_iov_pin_rsp(work, (void *)neg_rsp,
if (ksmbd_iov_pin_rsp(work, (void *)neg_rsp + 4,
sizeof(struct smb_negotiate_rsp) - 4))
return -ENOMEM;