Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

lint: fix internal error for unfinished declaration 

A translation unit that contains just 'void x' without the trailing
semicolon had crashed lint1 before:

assertion "dcs->d_ctx == AUTO" failed in declare at decl.c:2049

Found using afl.
This commit is contained in:
rillig 2021-06-19 11:01:23 +00:00
parent 148d425b99
commit 8906844d84
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
usr.bin/xlint/lint1/decl.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: decl.c,v 1.182 2021/05/16 11:11:36 rillig Exp $ */
/* $NetBSD: decl.c,v 1.183 2021/06/19 11:01:23 rillig Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All Rights Reserved.
@ -38,7 +38,7 @@
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: decl.c,v 1.182 2021/05/16 11:11:36 rillig Exp $");
__RCSID("$NetBSD: decl.c,v 1.183 2021/06/19 11:01:23 rillig Exp $");
#endif
#include <sys/param.h>
@ -3256,6 +3256,8 @@ check_global_variable_size(const sym_t *sym)
* function declaration
*/
return;
if (sym->s_def == TDEF && sym->s_type->t_tspec == VOID)
return; /* prevent internal error in length() below */
cpos = curr_pos;
curr_pos = sym->s_def_pos;