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* tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused

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if tcp_seg_copy fails.
This commit is contained in:
jifl 2008-06-24 15:46:38 +00:00
parent b94e3a874d
commit 139944a3ac
2 changed files with 13 additions and 8 deletions
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5
CHANGELOG
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@ -35,6 +35,11 @@ HISTORY
++ Bugfixes:
2008-06-24 Jonathan Larmour
* tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
if tcp_seg_copy fails.
2008-06-17 Simon Goldschmidt
* inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
and created defines for swapping bytes and folding u32 to u16.

16
src/core/tcp_in.c
View File

@ -1195,14 +1195,14 @@ tcp_receive(struct tcp_pcb *pcb)
} else {
pcb->ooseq = cseg;
}
}
tcp_seg_free(next);
if (cseg->next != NULL) {
next = cseg->next;
if (TCP_SEQ_GT(seqno + cseg->len, next->tcphdr->seqno)) {
/* We need to trim the incoming segment. */
cseg->len = (u16_t)(next->tcphdr->seqno - seqno);
pbuf_realloc(cseg->p, cseg->len);
tcp_seg_free(next);
if (cseg->next != NULL) {
next = cseg->next;
if (TCP_SEQ_GT(seqno + cseg->len, next->tcphdr->seqno)) {
/* We need to trim the incoming segment. */
cseg->len = (u16_t)(next->tcphdr->seqno - seqno);
pbuf_realloc(cseg->p, cseg->len);
}
}
}
break;