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-rw-r--r--source3/libsmb/clitrans.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/source3/libsmb/clitrans.c b/source3/libsmb/clitrans.c
index 329ddcaac6..8ac31d89f1 100644
--- a/source3/libsmb/clitrans.c
+++ b/source3/libsmb/clitrans.c
@@ -85,6 +85,7 @@ static NTSTATUS cli_pull_trans(uint8_t *inbuf,
uint32_t *pdata_disp, uint8_t **pdata)
{
uint32_t param_ofs, data_ofs;
+ uint8_t expected_num_setup;
if (expect_first_reply) {
if ((wct != 0) || (num_bytes != 0)) {
@@ -99,6 +100,7 @@ static NTSTATUS cli_pull_trans(uint8_t *inbuf,
if (wct < 10) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
+ expected_num_setup = wct - 10;
*ptotal_param = SVAL(vwv + 0, 0);
*ptotal_data = SVAL(vwv + 1, 0);
*pnum_param = SVAL(vwv + 3, 0);
@@ -108,7 +110,7 @@ static NTSTATUS cli_pull_trans(uint8_t *inbuf,
data_ofs = SVAL(vwv + 7, 0);
*pdata_disp = SVAL(vwv + 8, 0);
*pnum_setup = CVAL(vwv + 9, 0);
- if (wct < 10 + (*pnum_setup)) {
+ if (expected_num_setup < (*pnum_setup)) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
*psetup = vwv + 10;