Message ID | 20230926201532.221152-9-vsementsov@yandex-team.ru |
---|---|
State | New |
Headers | show |
Series | coverity fixes | expand |
diff --git a/io/channel-socket.c b/io/channel-socket.c index 02ffb51e99..3a899b0608 100644 --- a/io/channel-socket.c +++ b/io/channel-socket.c @@ -782,6 +782,11 @@ static int qio_channel_socket_flush(QIOChannel *ioc, "Error not from zero copy"); return -1; } + if (serr->ee_data < serr->ee_info) { + error_setg_errno(errp, serr->ee_origin, + "Wrong notification bounds"); + return -1; + } /* No errors, count successfully finished sendmsg()*/ sioc->zero_copy_sent += serr->ee_data - serr->ee_info + 1;
For SO_EE_ORIGIN_ZEROCOPY the 32-bit notification range is encoded as [ee_info, ee_data] inclusively, so ee_info should be less or equal to ee_data. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> --- io/channel-socket.c | 5 +++++ 1 file changed, 5 insertions(+)