From: Johan Hovold <johan+linaro@kernel.org> stable inclusion from stable-v5.15.159 commit 580bcd6bf24f9975f97d81d5ef1b64cca9240df9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U3C7 CVE: CVE-2024-36880 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... --------------------------- commit 40d442f969fb1e871da6fca73d3f8aef1f888558 upstream. A recent commit fixed the code that parses the firmware files before downloading them to the controller but introduced a memory leak in case the sanity checks ever fail. Make sure to free the firmware buffer before returning on errors. Fixes: f905ae0be4b7 ("Bluetooth: qca: add missing firmware sanity checks") Cc: stable@vger.kernel.org # 4.19 Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Xiang Yang <xiangyang3@huawei.com> Signed-off-by: Yi Yang <yiyang13@huawei.com> --- drivers/bluetooth/btqca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 843ac3cdc922..dfde3f504104 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -399,7 +399,7 @@ static int qca_download_firmware(struct hci_dev *hdev, ret = qca_tlv_check_data(hdev, config, data, size, soc_type); if (ret) - return ret; + goto out; segment = data; remain = size; -- 2.25.1