Check the return value of strict_strtoul() when processing the Content-Length header as recommended by Coverity [1].
[1] https://lists.denx.de/pipermail/u-boot/2024-October/567050.html Reported-by: Coverity (CID 510464) Signed-off-by: Jerome Forissier <jerome.foriss...@linaro.org> --- net/wget.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/wget.c b/net/wget.c index b4251e0f293..a3821495e03 100644 --- a/net/wget.c +++ b/net/wget.c @@ -256,7 +256,12 @@ static void wget_connected(uchar *pkt, unsigned int tcp_seq_num, content_length = -1; } else { pos += sizeof(content_len) + 2; - strict_strtoul(pos, 10, &content_length); + if (strict_strtoul(pos, 10, &content_length) < 0) { + wget_loop_state = NETLOOP_FAIL; + wget_fail("wget: bad Content-Length\n", tcp_seq_num, tcp_ack_num, action); + net_set_state(NETLOOP_FAIL); + return; + } debug_cond(DEBUG_WGET, "wget: Connected Len %lu\n", content_length); -- 2.40.1
