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BUG/MINOR: log: fix memory leak on logsrv parse error

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In case of parsing error on logsrv, we can leave parse_logsrv() without
releasing logsrv->ring_name or smp_rgs. Let's free them on the error path.
This should fix issue #926 detected by Coverity.

The impact is only a tiny leak just before reporting a fatal error, so it
will essentially annoy valgrind.

This can be backported to 2.0 (just drop the ring part).
This commit is contained in:
Willy Tarreau 2020-10-27 09:51:37 +01:00
parent a73a222a98
commit ae32ac74db
1 changed files with 3 additions and 1 deletions
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4
src/log.c
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@ -799,6 +799,7 @@ int smp_log_range_cmp(const void *a, const void *b)
*/
int parse_logsrv(char **args, struct list *logsrvs, int do_del, char **err)
{
struct smp_log_range *smp_rgs = NULL;
struct sockaddr_storage *sk;
struct logsrv *logsrv = NULL;
int port1, port2;
@ -905,7 +906,6 @@ int parse_logsrv(char **args, struct list *logsrvs, int do_del, char **err)
if (strcmp(args[cur_arg], "sample") == 0) {
unsigned low, high;
char *p, *beg, *end, *smp_sz_str;
struct smp_log_range *smp_rgs = NULL;
size_t smp_rgs_sz = 0, smp_sz = 0, new_smp_sz;
p = args[cur_arg+1];
@ -1038,6 +1038,8 @@ int parse_logsrv(char **args, struct list *logsrvs, int do_del, char **err)
return 1;
error:
free(smp_rgs);
free(logsrv->ring_name);
free(logsrv);
return 0;
}