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Bluetooth: btusb: Fix potential NULL dereference on kmalloc failure

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Avoid potential NULL pointer dereference by checking the return value of
kmalloc and handling allocation failure properly.

Fixes: 7d70989fce ("Bluetooth: btusb: Add HCI Drv commands for configuring altsetting")
Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Zhongqiu Han
2025-07-05 18:52:46 +08:00
committed by Luiz Augusto von Dentz
parent 636c803f92
commit b505902c66
1 changed files with 2 additions and 0 deletions
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2
drivers/bluetooth/btusb.c
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@@ -3809,6 +3809,8 @@ static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data,
/* There are at most 7 alt (0 - 6) */
rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL);
if (!rp)
return -ENOMEM;
rp->num = 0;
if (!drvdata->isoc)