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Fix possible dereference of NULL

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In some places in compile.c (for example in compile_builtin_arg)
ERROR_ARGS macro is used while node = NULL. This macro uses nd_line
which dereferences node. Add check for NULL to prevent such errors.
This commit is contained in:
Anastasia Belova 2025-01-28 15:08:54 +03:00 • committed by Nobuyoshi Nakada
parent a34b95fef9
commit ff64806ae5
Notes: git 2025-01-29 01:35:44 +00:00
1 changed files with 1 additions and 1 deletions
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2
node.h
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@ -74,7 +74,7 @@ RUBY_SYMBOL_EXPORT_END
#define NODE_LSHIFT (NODE_TYPESHIFT+7)
#define NODE_LMASK (((SIGNED_VALUE)1<<(sizeof(VALUE)*CHAR_BIT-NODE_LSHIFT))-1)
#define nd_line(n) (int)(((SIGNED_VALUE)(n)->flags)>>NODE_LSHIFT)
#define nd_line(n) (int)((n) ? ((SIGNED_VALUE)(n)->flags)>>NODE_LSHIFT : -1)
#define nd_set_line(n,l) \
(n)->flags=(((n)->flags&~((VALUE)(-1)<<NODE_LSHIFT))|((VALUE)((l)&NODE_LMASK)<<NODE_LSHIFT))