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| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2021-12-02 12:53:32 +0300 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2021-12-02 17:36:18 +0300 |
| commit | 918aa1ef104d286d16b9e7ef139a463ac7a296f0 (patch) | |
| tree | 673134f33704f180f6a7465d5bf07b94c4ccd045 | |
| parent | 7998193bccc1c6e1537c5f3880fd0d5b949ec9d1 (diff) | |
| download | linux-918aa1ef104d286d16b9e7ef139a463ac7a296f0.tar.xz | |
HID: bigbenff: prevent null pointer dereference
When emulating the device through uhid, there is a chance we don't have
output reports and so report_field is null.
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211202095334.14399-3-benjamin.tissoires@redhat.com
| -rw-r--r-- | drivers/hid/hid-bigbenff.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c index db6da21ade06..74ad8bf98bfd 100644 --- a/drivers/hid/hid-bigbenff.c +++ b/drivers/hid/hid-bigbenff.c @@ -191,7 +191,7 @@ static void bigben_worker(struct work_struct *work) struct bigben_device, worker); struct hid_field *report_field = bigben->report->field[0]; - if (bigben->removed) + if (bigben->removed || !report_field) return; if (bigben->work_led) { |