diff options
| author | Zhongqiu Han <quic_zhonhan@quicinc.com> | 2025-07-05 18:52:46 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-15 16:38:51 +0200 |
| commit | 5029d80bfc30b60ff57c70ccb04e027acb404f6a (patch) | |
| tree | dbc8b66140dd56bb768e784498ea44adc844f838 | |
| parent | 615dfc9acd35da56f33929ae20fe87752b80b2bc (diff) | |
Bluetooth: btusb: Fix potential NULL dereference on kmalloc failure
[ Upstream commit b505902c66a282dcb01bcdc015aa1fdfaaa075db ]
Avoid potential NULL pointer dereference by checking the return value of
kmalloc and handling allocation failure properly.
Fixes: 7d70989fcea7 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/bluetooth/btusb.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index f9eeec0aed57..db27d28e8a7e 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3802,6 +3802,8 @@ 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) |