Mercurial > gnulib
changeset 39237:a675c796ba51
malloca: Add an argument check.
Suggested by Paul Eggert.
* lib/malloca.c (freea): Check against an invalid argument.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Sat, 03 Feb 2018 00:32:41 +0100 |
| parents | 2d4269b0a867 |
| children | e5bf6ab0bb97 |
| files | ChangeLog lib/malloca.c |
| diffstat | 2 files changed, 12 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog Fri Feb 02 21:34:14 2018 +0100 +++ b/ChangeLog Sat Feb 03 00:32:41 2018 +0100 @@ -1,3 +1,9 @@ +2018-02-02 Bruno Haible <bruno@clisp.org> + + malloca: Add an argument check. + Suggested by Paul Eggert. + * lib/malloca.c (freea): Check against an invalid argument. + 2018-02-02 Bruno Haible <bruno@clisp.org> localename: Add support for OpenIndiana.
--- a/lib/malloca.c Fri Feb 02 21:34:14 2018 +0100 +++ b/lib/malloca.c Sat Feb 03 00:32:41 2018 +0100 @@ -78,6 +78,12 @@ void freea (void *p) { + /* Check argument. */ + if ((uintptr_t) p & (sa_alignment_max - 1)) + { + /* p was not the result of a malloca() call. Invalid argument. */ + abort (); + } /* Determine whether p was a non-NULL pointer returned by mmalloca(). */ if ((uintptr_t) p & sa_alignment_max) {