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authorJia He <justin.he@arm.com>2019-08-09 04:24:57 +0300
committerPetr Mladek <pmladek@suse.com>2019-08-15 17:58:06 +0300
commitcf6b7921fc19e537cd5ae88460195c8599eb5d9d (patch)
treeaeffd961e6d85f8128c57d1b619f086b9ff9a8d2 /lib/test_printf.c
parent36594b317c656bec8f968db93701d2cb9bc9155c (diff)
downloadlinux-cf6b7921fc19e537cd5ae88460195c8599eb5d9d.tar.xz
lib/test_printf: Add test of null/invalid pointer dereference for dentry
This add some additional test cases of null/invalid pointer dereference for dentry and file (%pd and %pD) Link: http://lkml.kernel.org/r/20190809012457.56685-2-justin.he@arm.com To: Geert Uytterhoeven <geert+renesas@glider.be> To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> To: Thomas Gleixner <tglx@linutronix.de> To: Andy Shevchenko <andriy.shevchenko@linux.intel.com> To: Petr Mladek <pmladek@suse.com> To: linux-kernel@vger.kernel.org Cc: Kees Cook <keescook@chromium.org> Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org> Cc: Shuah Khan <shuah@kernel.org> Cc: "Tobin C. Harding" <tobin@kernel.org> Signed-off-by: Jia He <justin.he@arm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'lib/test_printf.c')
-rw-r--r--lib/test_printf.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/test_printf.c b/lib/test_printf.c
index 944eb50f3862..befedffeb476 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -455,6 +455,13 @@ dentry(void)
test("foo", "%pd", &test_dentry[0]);
test("foo", "%pd2", &test_dentry[0]);
+ /* test the null/invalid pointer case for dentry */
+ test("(null)", "%pd", NULL);
+ test("(efault)", "%pd", PTR_INVALID);
+ /* test the null/invalid pointer case for file */
+ test("(null)", "%pD", NULL);
+ test("(efault)", "%pD", PTR_INVALID);
+
test("romeo", "%pd", &test_dentry[3]);
test("alfa/romeo", "%pd2", &test_dentry[3]);
test("bravo/alfa/romeo", "%pd3", &test_dentry[3]);