c-ares / c-ares / 24307262655

92%

push

github

fix: initialize *read_bytes in ares_socket_recvfrom() (#1125)

ares_socket_recv() initializes *read_bytes = 0 at the top, but the
sibling function ares_socket_recvfrom() does not. When a 0-byte UDP
packet arrives (rv == 0), SUCCESS is returned but *read_bytes is never
written. The caller read_conn_packets() then uses the garbage value in
ares_buf_append_finish(), corrupting the input buffer.

Signed-off-by: David Hotham (@dimbleby)

1 of 1 new or added line in 1 file covered. (100.0%)

22769 of 24832 relevant lines covered (91.69%)

12945.43 hits per line