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
9 years ago · 09301ddc4f
parent 9f9371952c
commit 09301ddc4f
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 */