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bugfix: fix IPv6 memory leak issue

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This commit is contained in:
ronghulin
2020-08-05 14:05:45 +08:00
committed by liu zhifu
parent ab9f5864b5
commit 021ff3a3b0
2 changed files with 4 additions and 4 deletions
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src/core/ipv6/ip6.c
+1
View File
@@ -452,6 +452,7 @@ ip6_input(struct pbuf *p, struct netif *inp)
if (ip6_addr_isipv4mappedipv6(ip_2_ip6(&ip_data.current_iphdr_dest)) ||
ip6_addr_isipv4mappedipv6(ip_2_ip6(&ip_data.current_iphdr_src)) ||
ip6_addr_ismulticast(ip_2_ip6(&ip_data.current_iphdr_src))) {
pbuf_free(p);
IP6_STATS_INC(ip6.err);
IP6_STATS_INC(ip6.drop);
return ERR_OK;
src/core/pbuf.c
+3 -4
View File
@@ -504,7 +504,7 @@ pbuf_realloc(struct pbuf *p, u16_t new_len)
{
struct pbuf *q;
u16_t rem_len; /* remaining length */
s32_t grow;
u16_t shrink;
LWIP_ASSERT("pbuf_realloc: p != NULL", p != NULL);
LWIP_ASSERT("pbuf_realloc: sane p->type", p->type == PBUF_POOL ||
@@ -520,7 +520,7 @@ pbuf_realloc(struct pbuf *p, u16_t new_len)
/* the pbuf chain grows by (new_len - p->tot_len) bytes
* (which may be negative in case of shrinking) */
grow = new_len - p->tot_len;
shrink = (u16_t)(p->tot_len - new_len);
/* first, step over any pbufs that should remain in the chain */
rem_len = new_len;
@@ -530,8 +530,7 @@ pbuf_realloc(struct pbuf *p, u16_t new_len)
/* decrease remaining length by pbuf length */
rem_len -= q->len;
/* decrease total length indicator */
LWIP_ASSERT("grow < max_u16_t", grow < 0xffff);
q->tot_len += (u16_t)grow;
q->tot_len = (u16_t)(q->tot_len - shrink);
/* proceed to next pbuf in chain */
q = q->next;
LWIP_ASSERT("pbuf_realloc: q != NULL", q != NULL);