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| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2021-12-02 12:53:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-14 12:57:06 +0300 |
| commit | 58f15f5ae7786c824868f3a7e093859b74669ce7 (patch) | |
| tree | 09eb6c0a30c37a91d02291dd7863a9ecd009cb09 /drivers/hid | |
| parent | 30d3150d909431fd7424ab8ff4c4c2c795554e30 (diff) | |
| download | linux-58f15f5ae7786c824868f3a7e093859b74669ce7.tar.xz | |
HID: bigbenff: prevent null pointer dereference
commit 918aa1ef104d286d16b9e7ef139a463ac7a296f0 upstream.
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hid')
| -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) { |