Re: [PATCH] apparmor: fix policy_unpack_test on big endian systems

From: Guenter Roeck
Date: Mon Aug 12 2024 - 13:07:23 EST


On 8/12/24 09:55, John Johansen wrote:
On 8/8/24 08:59, Guenter Roeck wrote:
policy_unpack_test fails on big endian systems because data byte order
is expected to be little endian but is generated in host byte order.
This results in test failures such as:

  # policy_unpack_test_unpack_array_with_null_name: EXPECTATION FAILED at security/apparmor/policy_unpack_test.c:150
     Expected array_size == (u16)16, but
         array_size == 4096 (0x1000)
         (u16)16 == 16 (0x10)
     # policy_unpack_test_unpack_array_with_null_name: pass:0 fail:1 skip:0 total:1
     not ok 3 policy_unpack_test_unpack_array_with_null_name
     # policy_unpack_test_unpack_array_with_name: EXPECTATION FAILED at security/apparmor/policy_unpack_test.c:164
     Expected array_size == (u16)16, but
         array_size == 4096 (0x1000)
         (u16)16 == 16 (0x10)
     # policy_unpack_test_unpack_array_with_name: pass:0 fail:1 skip:0 total:1

Add the missing endianness conversions when generating test data.

Fixes: 4d944bcd4e73 ("apparmor: add AppArmor KUnit tests for policy unpack")
Cc: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>

Looks good

Acked-by: John Johansen <john.johansen@xxxxxxxxxxxxx>

I will pull this into my tree


Thanks!

Guenter