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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2021-12-02 12:53:32 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-14 13:32:34 +0300
commit6272b17001e6fdcf7b4a16206287010a1523fa6e (patch)
tree86b44f75fcb537459c8fa870a3459495aa50d136 /drivers/hid/hid-bigbenff.c
parentd877651afd60dcbbcdc31f9efded3c27813afd1a (diff)
downloadlinux-6272b17001e6fdcf7b4a16206287010a1523fa6e.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/hid-bigbenff.c')
-rw-r--r--drivers/hid/hid-bigbenff.c2
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) {