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| author | Eli Zaretskii <eliz@gnu.org> | 2018-08-28 10:20:46 +0300 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2018-08-28 10:20:46 +0300 |
| commit | 63e59c8ca51ced6c4d5951281cb21288da32ced3 (patch) | |
| tree | ebdfba374eb597417eb5f8ff11db822d278fb0cc /src/eval.c | |
| parent | 785682c26df4ced5c62075c88477b7bc50afb332 (diff) | |
| download | emacs-63e59c8ca51ced6c4d5951281cb21288da32ced3.tar.gz | |
Avoid crashes in malformed defvar
* src/eval.c (Fdefvar): Don't call XSYMBOL on something that
might not be a symbol. This avoids crashes due to malformed
'defvar' forms. (Bug#32552)
Diffstat (limited to 'src/eval.c')
| -rw-r--r-- | src/eval.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/eval.c b/src/eval.c index 40cba3bb1ce..f9563a3f80c 100644 --- a/src/eval.c +++ b/src/eval.c @@ -773,7 +773,7 @@ usage: (defvar SYMBOL &optional INITVALUE DOCSTRING) */) LOADHIST_ATTACH (sym); } else if (!NILP (Vinternal_interpreter_environment) - && !XSYMBOL (sym)->u.s.declared_special) + && (SYMBOLP (sym) && !XSYMBOL (sym)->u.s.declared_special)) /* A simple (defvar foo) with lexical scoping does "nothing" except declare that var to be dynamically scoped *locally* (i.e. within the current file or let-block). */ |