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27 lines
756 B
Diff
27 lines
756 B
Diff
From 1f9848efc8a329cb9a13323cbb94b353d39802c1 Mon Sep 17 00:00:00 2001
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From: Steven Barth <steven@midlink.org>
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Date: Mon, 22 Jun 2015 14:36:16 +0200
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Subject: [PATCH] unistd: fix signed / unsigned comparison in getgroups
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Signed-off-by: Steven Barth <steven@midlink.org>
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---
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include/unistd.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/include/unistd.h b/include/unistd.h
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index 45304e1..5274e22 100644
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--- a/include/unistd.h
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+++ b/include/unistd.h
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@@ -71,7 +71,7 @@ _FORTIFY_FN(getgroups) int getgroups(int __l, gid_t *__s)
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{
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size_t __b = __builtin_object_size(__s, 0);
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- if (__l > __b / sizeof(gid_t))
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+ if (__l < 0 || (size_t)__l > __b / sizeof(gid_t))
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__builtin_trap();
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return __orig_getgroups(__l, __s);
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}
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--
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2.1.4
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