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patch 8.1.1653: ubsan warns for possibly passing NULL pointer

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Problem:    Ubsan warns for possibly passing NULL pointer.
Solution:   Skip code when length is zero. (Dominique Pelle, closes #4631)
This commit is contained in:
Bram Moolenaar 2019-07-08 22:04:03 +02:00
parent 49fe95f225
commit 0d07155c8b
2 changed files with 4 additions and 2 deletions
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4
src/channel.c
View File

@ -3990,7 +3990,7 @@ channel_send(
writeq_T *last = wq->wq_prev;
/* append to the last entry */
if (ga_grow(&last->wq_ga, len) == OK)
if (len > 0 && ga_grow(&last->wq_ga, len) == OK)
{
mch_memmove((char *)last->wq_ga.ga_data
+ last->wq_ga.ga_len,
@ -4012,7 +4012,7 @@ channel_send(
wq->wq_prev->wq_next = last;
wq->wq_prev = last;
ga_init2(&last->wq_ga, 1, 1000);
if (ga_grow(&last->wq_ga, len) == OK)
if (len > 0 && ga_grow(&last->wq_ga, len) == OK)
{
mch_memmove(last->wq_ga.ga_data, buf, len);
last->wq_ga.ga_len = len;

2
src/version.c
View File

@ -777,6 +777,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1653,
/**/
1652,
/**/