[Tarantool-patches] [PATCH] backtrace: fix out of bounds access on backtrace printing

[Serge Petrenko]

snrpintf always null-terminates the passed string, and it also returns
the number of bytes that "would have been written if there was enough
space", so not only we don't have to null-terminate the string, but even
more so we shouldn't do it erroneously.

Closes #4636
---
https://github.com/tarantool/tarantool/issues/4636
https://github.com/tarantool/tarantool/tree/sp/gh-4636-bt-print-fix

 src/lib/core/backtrace.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/lib/core/backtrace.cc b/src/lib/core/backtrace.cc
index 57e541c25..903ffb79c 100644
--- a/src/lib/core/backtrace.cc
+++ b/src/lib/core/backtrace.cc
@@ -173,7 +173,6 @@ backtrace()
 		say_debug("unwinding error: %i", unw_status);
 #endif
 out:
-	*p = '\0';
 	return backtrace_buf;
 }
 
-- 
2.21.0 (Apple Git-122)