diff options
| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2021-10-15 00:03:45 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-17 11:04:50 +0100 |
| commit | b3e0a9cb6a6799fc13925ae3b90cf9214a96896b (patch) | |
| tree | 268cc16d4a9e26dec305b1fb2fe911758466c96d /tools/perf/scripts/python | |
| parent | 0bc921b6db557b496a9902aa3747d04d54006e0f (diff) | |
powerpc/vas: Fix potential NULL pointer dereference
commit 61cb9ac66b30374c7fd8a8b2a3c4f8f432c72e36 upstream.
(!ptr && !ptr->foo) strikes again. :)
The expression (!ptr && !ptr->foo) is bogus and in case ptr is NULL,
it leads to a NULL pointer dereference: ptr->foo.
Fix this by converting && to ||
This issue was detected with the help of Coccinelle, and audited and
fixed manually.
Fixes: 1a0d0d5ed5e3 ("powerpc/vas: Add platform specific user window operations")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211015050345.GA1161918@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions