ast_bt_get_symbols: Prevent double-free.

It's possible for bfdobj to be created but syms not created. If syms was not allocated in the current loop iteration but was allocated in the previous iteration it would crash. ASTERISK-27340 Change-Id: I5b110c609f6dfe91339f782a99a431bca5837363
8 years ago · ee65d5ac7c
parent 21c0283b78
commit ee65d5ac7c
1 changed files with 1 additions and 0 deletions
--- a/main/backtrace.c
+++ b/main/backtrace.c
@ -172,6 +172,7 @@ char **__ast_bt_get_symbols(void **addresses, size_t num_frames)
 		if (bfdobj) {
 			bfd_close(bfdobj);
 			ast_std_free(syms);
+			syms = NULL;
 		}

 		/* Default output, if we cannot find the information within BFD */