kasan: docs: update descriptions about test file and module
After commit f7e01ab828 ("kasan: move tests to mm/kasan/"), the test
file is renamed to mm/kasan/kasan_test.c and the test module is renamed to
kasan_test.ko, so update the descriptions in the document.
While at it, update the line number and testcase number when the tests
kmalloc_large_oob_right and kmalloc_double_kzfree failed to sync with the
current code in mm/kasan/kasan_test.c.
Link: https://lkml.kernel.org/r/20240205060925.15594-2-yangtiezhu@loongson.cn
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Tiezhu Yang
Andrew Morton
parent
f81ed7c4e1
commit
d831091484
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@ -169,7 +169,7 @@ Error reports
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A typical KASAN report looks like this::
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==================================================================
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BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [test_kasan]
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BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [kasan_test]
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Write of size 1 at addr ffff8801f44ec37b by task insmod/2760
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CPU: 1 PID: 2760 Comm: insmod Not tainted 4.19.0-rc3+ #698
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@ -179,8 +179,8 @@ A typical KASAN report looks like this::
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print_address_description+0x73/0x280
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kasan_report+0x144/0x187
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__asan_report_store1_noabort+0x17/0x20
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kmalloc_oob_right+0xa8/0xbc [test_kasan]
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kmalloc_tests_init+0x16/0x700 [test_kasan]
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kmalloc_oob_right+0xa8/0xbc [kasan_test]
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kmalloc_tests_init+0x16/0x700 [kasan_test]
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do_one_initcall+0xa5/0x3ae
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do_init_module+0x1b6/0x547
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load_module+0x75df/0x8070
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@ -200,8 +200,8 @@ A typical KASAN report looks like this::
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save_stack+0x43/0xd0
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kasan_kmalloc+0xa7/0xd0
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kmem_cache_alloc_trace+0xe1/0x1b0
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kmalloc_oob_right+0x56/0xbc [test_kasan]
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kmalloc_tests_init+0x16/0x700 [test_kasan]
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kmalloc_oob_right+0x56/0xbc [kasan_test]
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kmalloc_tests_init+0x16/0x700 [kasan_test]
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do_one_initcall+0xa5/0x3ae
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do_init_module+0x1b6/0x547
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load_module+0x75df/0x8070
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@ -510,15 +510,15 @@ When a test passes::
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When a test fails due to a failed ``kmalloc``::
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# kmalloc_large_oob_right: ASSERTION FAILED at lib/test_kasan.c:163
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# kmalloc_large_oob_right: ASSERTION FAILED at mm/kasan/kasan_test.c:245
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Expected ptr is not null, but is
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not ok 4 - kmalloc_large_oob_right
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not ok 5 - kmalloc_large_oob_right
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When a test fails due to a missing KASAN report::
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# kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:974
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# kmalloc_double_kzfree: EXPECTATION FAILED at mm/kasan/kasan_test.c:709
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KASAN failure expected in "kfree_sensitive(ptr)", but none occurred
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not ok 44 - kmalloc_double_kzfree
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not ok 28 - kmalloc_double_kzfree
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At the end the cumulative status of all KASAN tests is printed. On success::
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@ -534,7 +534,7 @@ There are a few ways to run KUnit-compatible KASAN tests.
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1. Loadable module
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With ``CONFIG_KUNIT`` enabled, KASAN-KUnit tests can be built as a loadable
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module and run by loading ``test_kasan.ko`` with ``insmod`` or ``modprobe``.
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module and run by loading ``kasan_test.ko`` with ``insmod`` or ``modprobe``.
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2. Built-In
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@ -137,7 +137,7 @@ KASAN受到通用 ``panic_on_warn`` 命令行参数的影响。当它被启用
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典型的KASAN报告如下所示::
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==================================================================
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BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [test_kasan]
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BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [kasan_test]
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Write of size 1 at addr ffff8801f44ec37b by task insmod/2760
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CPU: 1 PID: 2760 Comm: insmod Not tainted 4.19.0-rc3+ #698
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@ -147,8 +147,8 @@ KASAN受到通用 ``panic_on_warn`` 命令行参数的影响。当它被启用
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print_address_description+0x73/0x280
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kasan_report+0x144/0x187
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__asan_report_store1_noabort+0x17/0x20
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kmalloc_oob_right+0xa8/0xbc [test_kasan]
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kmalloc_tests_init+0x16/0x700 [test_kasan]
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kmalloc_oob_right+0xa8/0xbc [kasan_test]
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kmalloc_tests_init+0x16/0x700 [kasan_test]
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do_one_initcall+0xa5/0x3ae
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do_init_module+0x1b6/0x547
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load_module+0x75df/0x8070
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@ -168,8 +168,8 @@ KASAN受到通用 ``panic_on_warn`` 命令行参数的影响。当它被启用
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save_stack+0x43/0xd0
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kasan_kmalloc+0xa7/0xd0
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kmem_cache_alloc_trace+0xe1/0x1b0
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kmalloc_oob_right+0x56/0xbc [test_kasan]
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kmalloc_tests_init+0x16/0x700 [test_kasan]
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kmalloc_oob_right+0x56/0xbc [kasan_test]
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kmalloc_tests_init+0x16/0x700 [kasan_test]
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do_one_initcall+0xa5/0x3ae
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do_init_module+0x1b6/0x547
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load_module+0x75df/0x8070
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@ -421,15 +421,15 @@ KASAN连接到vmap基础架构以懒清理未使用的影子内存。
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当由于 ``kmalloc`` 失败而导致测试失败时::
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# kmalloc_large_oob_right: ASSERTION FAILED at lib/test_kasan.c:163
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# kmalloc_large_oob_right: ASSERTION FAILED at mm/kasan/kasan_test.c:245
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Expected ptr is not null, but is
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not ok 4 - kmalloc_large_oob_right
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not ok 5 - kmalloc_large_oob_right
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当由于缺少KASAN报告而导致测试失败时::
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# kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:974
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# kmalloc_double_kzfree: EXPECTATION FAILED at mm/kasan/kasan_test.c:709
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KASAN failure expected in "kfree_sensitive(ptr)", but none occurred
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not ok 44 - kmalloc_double_kzfree
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not ok 28 - kmalloc_double_kzfree
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最后打印所有KASAN测试的累积状态。成功::
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@ -445,7 +445,7 @@ KASAN连接到vmap基础架构以懒清理未使用的影子内存。
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1. 可加载模块
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启用 ``CONFIG_KUNIT`` 后，KASAN-KUnit测试可以构建为可加载模块，并通过使用
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``insmod`` 或 ``modprobe`` 加载 ``test_kasan.ko`` 来运行。
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``insmod`` 或 ``modprobe`` 加载 ``kasan_test.ko`` 来运行。
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2. 内置
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@ -137,7 +137,7 @@ KASAN受到通用 ``panic_on_warn`` 命令行參數的影響。當它被啓用
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典型的KASAN報告如下所示::
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==================================================================
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BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [test_kasan]
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BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [kasan_test]
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Write of size 1 at addr ffff8801f44ec37b by task insmod/2760
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CPU: 1 PID: 2760 Comm: insmod Not tainted 4.19.0-rc3+ #698
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@ -147,8 +147,8 @@ KASAN受到通用 ``panic_on_warn`` 命令行參數的影響。當它被啓用
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print_address_description+0x73/0x280
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kasan_report+0x144/0x187
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__asan_report_store1_noabort+0x17/0x20
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kmalloc_oob_right+0xa8/0xbc [test_kasan]
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kmalloc_tests_init+0x16/0x700 [test_kasan]
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kmalloc_oob_right+0xa8/0xbc [kasan_test]
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kmalloc_tests_init+0x16/0x700 [kasan_test]
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do_one_initcall+0xa5/0x3ae
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do_init_module+0x1b6/0x547
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load_module+0x75df/0x8070
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@ -168,8 +168,8 @@ KASAN受到通用 ``panic_on_warn`` 命令行參數的影響。當它被啓用
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save_stack+0x43/0xd0
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kasan_kmalloc+0xa7/0xd0
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kmem_cache_alloc_trace+0xe1/0x1b0
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kmalloc_oob_right+0x56/0xbc [test_kasan]
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kmalloc_tests_init+0x16/0x700 [test_kasan]
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kmalloc_oob_right+0x56/0xbc [kasan_test]
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kmalloc_tests_init+0x16/0x700 [kasan_test]
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do_one_initcall+0xa5/0x3ae
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do_init_module+0x1b6/0x547
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load_module+0x75df/0x8070
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@ -421,15 +421,15 @@ KASAN連接到vmap基礎架構以懶清理未使用的影子內存。
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當由於 ``kmalloc`` 失敗而導致測試失敗時::
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# kmalloc_large_oob_right: ASSERTION FAILED at lib/test_kasan.c:163
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# kmalloc_large_oob_right: ASSERTION FAILED at mm/kasan/kasan_test.c:245
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Expected ptr is not null, but is
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not ok 4 - kmalloc_large_oob_right
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not ok 5 - kmalloc_large_oob_right
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當由於缺少KASAN報告而導致測試失敗時::
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# kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:974
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# kmalloc_double_kzfree: EXPECTATION FAILED at mm/kasan/kasan_test.c:709
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KASAN failure expected in "kfree_sensitive(ptr)", but none occurred
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not ok 44 - kmalloc_double_kzfree
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not ok 28 - kmalloc_double_kzfree
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最後打印所有KASAN測試的累積狀態。成功::
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@ -445,7 +445,7 @@ KASAN連接到vmap基礎架構以懶清理未使用的影子內存。
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1. 可加載模塊
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啓用 ``CONFIG_KUNIT`` 後，KASAN-KUnit測試可以構建爲可加載模塊，並通過使用
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``insmod`` 或 ``modprobe`` 加載 ``test_kasan.ko`` 來運行。
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``insmod`` 或 ``modprobe`` 加載 ``kasan_test.ko`` 來運行。
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2. 內置
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