Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-12 05:43:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

named references: fix double free.

Browse Source 
In `rhs[name]: "a" | "b"', do not free "name" twice.
Reported by Tys Lefering.
<http://lists.gnu.org/archive/html/bug-bison/2010-06/msg00002.html>

	* src/named-ref.h, src/named-ref.c (named_ref_copy): New.
	* src/parse-gram.y (current_lhs): Rename as...
	(current_lhs_symbol): this.
	(current_lhs): New function.  Use it to free the current lhs
	named reference.
	* src/reader.c: Bind lhs to a copy of the current named reference.
	* src/symlist.c: Rely on free (0) being valid.
	* tests/named-refs.at: Test this.

(cherry picked from commit 8f462efe92)

Conflicts:

	src/parse-gram.y
This commit is contained in:
Akim Demaille
2011-03-09 21:10:35 +01:00
parent 17d7bf83d0
commit a4d1bf6a9c
8 changed files with 65 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
ChangeLog
View File

@@ -1,3 +1,18 @@
2011-03-09 Akim Demaille <akim@lrde.epita.fr>
named references: fix double free.
In `rhs[name]: "a" | "b"', do not free "name" twice.
Reported by Tys Lefering.
<http://lists.gnu.org/archive/html/bug-bison/2010-06/msg00002.html>
* src/named-ref.h, src/named-ref.c (named_ref_copy): New.
* src/parse-gram.y (current_lhs): Rename as...
(current_lhs_symbol): this.
(current_lhs): New function. Use it to free the current lhs
named reference.
* src/reader.c: Bind lhs to a copy of the current named reference.
* src/symlist.c: Rely on free (0) being valid.
* tests/named-refs.at: Test this.
2011-03-09 Akim Demaille <akim@lrde.epita.fr>
tests: style changes.