shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 03:15:31 +09:00
Code Issues Packages Projects Releases Wiki Activity

UPSTREAM: selftests, arm64: fix uninitialized symbol in tags_test.c

Browse Source 
(Upstream commit 74585fcb7b).

Fix tagged_ptr not being initialized when TBI is not enabled.

Link: https://www.spinics.net/lists/linux-kselftest/msg09446.html
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Bug: 135692346
Change-Id: Ibfe3dfddb76ae56d51201d9e5db750c8f119323a
This commit is contained in:
Andrey Konovalov
2019-08-19 15:14:42 +02:00
committed by Alistair Delva
parent 86794180e2
commit 58f10ec3d3
1 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
tools/testing/selftests/arm64/tags_test.c
View File

@@ -14,15 +14,17 @@
int main(void)
{
static int tbi_enabled = 0;
struct utsname *ptr, *tagged_ptr;
unsigned long tag = 0;
struct utsname *ptr;
int err;
if (prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0) == 0)
tbi_enabled = 1;
ptr = (struct utsname *)malloc(sizeof(*ptr));
if (tbi_enabled)
tagged_ptr = (struct utsname *)SET_TAG(ptr, 0x42);
err = uname(tagged_ptr);
tag = 0x42;
ptr = (struct utsname *)SET_TAG(ptr, tag);
err = uname(ptr);
free(ptr);
return err;