mirror/lwip
1
0
Fork 0
mirror of https://github.com/lwip-tcpip/lwip.git synced 2025-01-01 12:00:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

Correctly fix bug #49209: netconn_drain() fails to handle 'netconn_aborted' pointer

Browse Source
This commit is contained in:
goldsimon 2016-10-04 12:29:22 +02:00
parent d9c6badc55
commit cdc97d2779
1 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/api/api_msg.c
View File

@ -781,16 +781,18 @@ netconn_drain(struct netconn *conn)
#if LWIP_TCP
if (sys_mbox_valid(&conn->acceptmbox)) {
while (sys_mbox_tryfetch(&conn->acceptmbox, &mem) != SYS_MBOX_EMPTY) {
struct netconn *newconn = (struct netconn *)mem;
/* Only tcp pcbs have an acceptmbox, so no need to check conn->type */
/* pcb might be set to NULL already by err_tcp() */
/* drain recvmbox */
netconn_drain(newconn);
if (newconn->pcb.tcp != NULL) {
tcp_abort(newconn->pcb.tcp);
newconn->pcb.tcp = NULL;
if (mem != &netconn_aborted) {
struct netconn *newconn = (struct netconn *)mem;
/* Only tcp pcbs have an acceptmbox, so no need to check conn->type */
/* pcb might be set to NULL already by err_tcp() */
/* drain recvmbox */
netconn_drain(newconn);
if (newconn->pcb.tcp != NULL) {
tcp_abort(newconn->pcb.tcp);
newconn->pcb.tcp = NULL;
}
netconn_free(newconn);
}
netconn_free(newconn);
}
sys_mbox_free(&conn->acceptmbox);
sys_mbox_set_invalid(&conn->acceptmbox);