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acl.c: Coerce a NULL pointer into the empty string

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If an ACL is misconfigured in the realtime database (for instance, the
"rule" is blank) and Asterisk attempts to read the ACL, Asterisk will
crash.

ASTERISK-28978 #close

Change-Id: Ic1536c4df856231bfd2da00128f7822224d77610
This commit is contained in:
Sean Bright
2020-07-13 16:42:40 -04:00
committed by Joshua Colp
parent bcdc3ec645
commit ff90e00677
1 changed files with 1 additions and 1 deletions
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2
main/acl.c
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@@ -580,7 +580,7 @@ static struct ast_ha *append_ha_core(const char *sense, const char *stuff, struc
struct ast_ha *ha;
struct ast_ha *prev = NULL;
struct ast_ha *ret;
char *tmp, *list = ast_strdupa(stuff);
char *tmp, *list = ast_strdupa(stuff ?: "");
char *address = NULL, *mask = NULL;
int addr_is_v4;
int allowing = strncasecmp(sense, "p", 1) ? AST_SENSE_DENY : AST_SENSE_ALLOW;