mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-08-15 23:09:05 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

Tests: Validate unmapping 0x0 doesn't crash the Kernel

Browse source 
Previously unmapping any offset starting at 0x0 would assert in the
kernel, add a regression test to validate the fix.

Co-authored-by: Federico Guerinoni <guerinoni.federico@gmail.com>
This commit is contained in:
Brian Gianforcaro 2021-07-30 02:05:15 -07:00 • committed by Andreas Kling
commit c9395d7e9a
Notes: sideshowbarker 2024-07-18 07:45:07 +09:00
1 changed files with 17 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

17
Tests/Kernel/TestMunMap.cpp Normal file
View file

@ -0,0 +1,17 @@
/*
* Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <errno.h>
#include <sys/mman.h>
TEST_CASE(munmap_zero_page)
{
// munmap of the unmapped zero page should always fail.
auto res = munmap(0x0, 0xF);
EXPECT_EQ(res, -1);
EXPECT_EQ(errno, EINVAL);
}