korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-12 13:34:10 +08:00
Code Issues Packages Projects Releases Wiki Activity

lkdtm/bugs: Add ARRAY_BOUNDS to selftests

Browse Source 
Add CONFIG hints about why the ARRAY_BOUNDS test might fail, and
similarly include the CONFIGs needed to pass the ARRAY_BOUNDS test via
the selftests, and add to selftests.

Cc: kernelci@groups.io
Suggested-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210818174855.2307828-2-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kees Cook 2021-08-18 10:48:52 -07:00 committed by Greg Kroah-Hartman
parent 09cbd1df7d
commit c75be56e35
3 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/misc/lkdtm/bugs.c
View File

@ -267,6 +267,7 @@ void lkdtm_ARRAY_BOUNDS(void)
kfree(not_checked);
kfree(checked);
pr_err("FAIL: survived array bounds overflow!\n");
pr_expected_config(CONFIG_UBSAN_BOUNDS);
}
void lkdtm_CORRUPT_LIST_ADD(void)

2
tools/testing/selftests/lkdtm/config
View File

@ -6,3 +6,5 @@ CONFIG_HARDENED_USERCOPY=y
# CONFIG_HARDENED_USERCOPY_FALLBACK is not set
CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT=y
CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_TRAP=y

1
tools/testing/selftests/lkdtm/tests.txt
View File

@ -7,6 +7,7 @@ EXCEPTION
#EXHAUST_STACK Corrupts memory on failure
#CORRUPT_STACK Crashes entire system on success
#CORRUPT_STACK_STRONG Crashes entire system on success
ARRAY_BOUNDS
CORRUPT_LIST_ADD list_add corruption
CORRUPT_LIST_DEL list_del corruption
STACK_GUARD_PAGE_LEADING