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HID: playstation: fix DualShock4 bluetooth memory corruption bug. 

The size of the output buffer used for output reports was not updated
to the larger size needed for Bluetooth. This ultimately resulted
in memory corruption of surrounding structures e.g. due to memsets.

Fixes: 2d77474a23 ("HID: playstation: add DualShock4 bluetooth support.")
Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Roderick Colenbrander 2022-11-16 08:00:21 -08:00 committed by Jiri Kosina
parent c64ed0cd93
commit 54980d30ef
1 changed files with 1 additions and 1 deletions
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2
drivers/hid/hid-playstation.c
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@ -2461,7 +2461,7 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev)
ds4->output_worker_initialized = true;
hid_set_drvdata(hdev, ds4);
max_output_report_size = sizeof(struct dualshock4_output_report_usb);
max_output_report_size = sizeof(struct dualshock4_output_report_bt);
ds4->output_report_dmabuf = devm_kzalloc(&hdev->dev, max_output_report_size, GFP_KERNEL);
if (!ds4->output_report_dmabuf)
return ERR_PTR(-ENOMEM);