mirror/lwip
1
0
Fork 0
mirror of https://github.com/lwip-tcpip/lwip.git synced 2024-07-02 19:08:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

tcp: Fix double free in tcp_split_unsent_seg()

Browse Source 
Fixes bug #57377 (found by Hiromasa Ito).
This commit is contained in:
Erik Ekman 2020-06-19 15:00:25 +02:00
parent ea111c511e
commit e80d4ff2cc
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/core/tcp_out.c
View File

@ -913,6 +913,7 @@ tcp_split_unsent_seg(struct tcp_pcb *pcb, u16_t split)
seg = tcp_create_segment(pcb, p, remainder_flags, lwip_ntohl(useg->tcphdr->seqno) + split, optflags);
if (seg == NULL) {
p = NULL; /* Freed by tcp_create_segment */
LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS,
("tcp_split_unsent_seg: could not create new TCP segment\n"));
goto memerr;