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diff -up util-linux-2.23.2/libmount/src/context_umount.c.kzak util-linux-2.23.2/libmount/src/context_umount.c
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--- util-linux-2.23.2/libmount/src/context_umount.c.kzak	2013-10-07 11:43:10.990598629 +0200
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+++ util-linux-2.23.2/libmount/src/context_umount.c	2013-10-07 11:46:01.051031431 +0200
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@@ -423,6 +423,8 @@ static int evaluate_permissions(struct l
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 		if (optstr && !mnt_optstr_get_option(optstr,
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 					"user", &mtab_user, &sz) && sz)
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 			ok = !strncmp(curr_user, mtab_user, sz);
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+
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+		free(curr_user);
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 	}
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 	if (ok) {
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diff -up util-linux-2.23.2/libmount/src/utils.c.kzak util-linux-2.23.2/libmount/src/utils.c
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--- util-linux-2.23.2/libmount/src/utils.c.kzak	2013-07-30 11:15:27.391515623 +0200
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+++ util-linux-2.23.2/libmount/src/utils.c	2013-10-07 11:43:27.209924834 +0200
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@@ -159,7 +159,7 @@ int mnt_chdir_to_parent(const char *targ
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 		if (!last || !*last)
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 			memcpy(*filename, ".", 2);
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 		else
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-			memcpy(*filename, last, strlen(last) + 1);
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+			memmove(*filename, last, strlen(last) + 1);
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 	} else
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 		free(buf);
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 	return 0;