diff options
| -rw-r--r-- | fs/ksmbd/smb2pdu.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index cd2313af811d..721b9a89c2d4 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -8395,20 +8395,18 @@ int smb3_decrypt_req(struct ksmbd_work *work) struct smb2_hdr *hdr; unsigned int pdu_length = get_rfc1002_len(buf); struct kvec iov[2]; - unsigned int buf_data_size = pdu_length + 4 - + int buf_data_size = pdu_length + 4 - sizeof(struct smb2_transform_hdr); struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; int rc = 0; - if (pdu_length + 4 < - sizeof(struct smb2_transform_hdr) + sizeof(struct smb2_hdr)) { + if (buf_data_size < sizeof(struct smb2_hdr)) { pr_err("Transform message is too small (%u)\n", pdu_length); return -ECONNABORTED; } - if (pdu_length + 4 < - le32_to_cpu(tr_hdr->OriginalMessageSize) + sizeof(struct smb2_transform_hdr)) { + if (buf_data_size < le32_to_cpu(tr_hdr->OriginalMessageSize)) { pr_err("Transform message is broken\n"); return -ECONNABORTED; } |