diff options
| author | Vladislav Efanov | 2023-05-17 20:25:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-07-19 16:21:52 +0200 |
| commit | c3b322b84ab5dda7eaca9ded763628b7467734f4 (patch) | |
| tree | e2f5cac30d63eebbbe70b335f0136cfb29adb27c /drivers/usb | |
| parent | 6aecf5e19b8a6f052d5c7b75a28ebf46aa61b1dc (diff) | |
usb: dwc3: qcom: Fix potential memory leak
[ Upstream commit 097fb3ee710d4de83b8d4f5589e8ee13e0f0541e ]
Function dwc3_qcom_probe() allocates memory for resource structure
which is pointed by parent_res pointer. This memory is not
freed. This leads to memory leak. Use stack memory to prevent
memory leak.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 2bc02355f8ba ("usb: dwc3: qcom: Add support for booting with ACPI")
Signed-off-by: Vladislav Efanov <VEfanov@ispras.ru>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20230517172518.442591-1-VEfanov@ispras.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc3/dwc3-qcom.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 79b22abf9727..482260182d65 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -800,6 +800,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct dwc3_qcom *qcom; struct resource *res, *parent_res = NULL; + struct resource local_res; int ret, i; bool ignore_pipe_clk; bool wakeup_source; @@ -851,9 +852,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) if (np) { parent_res = res; } else { - parent_res = kmemdup(res, sizeof(struct resource), GFP_KERNEL); - if (!parent_res) - return -ENOMEM; + memcpy(&local_res, res, sizeof(struct resource)); + parent_res = &local_res; parent_res->start = res->start + qcom->acpi_pdata->qscratch_base_offset; |