diff options
| author | David Manouchehri <david@davidmanouchehri.com> | 2020-10-08 04:51:46 +0000 |
|---|---|---|
| committer | Michael Brüning <michael.bruning@qt.io> | 2021-03-02 15:09:15 +0000 |
| commit | 5c74a3546e3322308025317180d25f26c4313aa0 (patch) | |
| tree | 396e3105a3c1f3c32a4864d89e6ca1a8b28d2f47 | |
| parent | bd0def3d818167c350c553f20ae21ac9699fd6f7 (diff) | |
| download | qtwebengine-chromium-5c74a3546e3322308025317180d25f26c4313aa0.tar.gz | |
[Backport] CVE-2021-21140: Uninitialized Use in USB [1/2]
Cherry-pick of patch originally reviewed on
https://chromium-review.googlesource.com/c/chromium/src/+/2459447:
Initialize urb to make MSan happy.
Bug: 1136327
Change-Id: Id47e06bfd088e5c72d5f41c091882e99768fb93d
Commit-Queue: Reilly Grant <reillyg@chromium.org>
Auto-Submit: David Manouchehri <david@davidmanouchehri.com>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815025}
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from commit f195542986b3d88fa7cd92fbe89d7c0f7d1341cd)
| -rw-r--r-- | chromium/device/usb/usb_device_handle_usbfs.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/chromium/device/usb/usb_device_handle_usbfs.cc b/chromium/device/usb/usb_device_handle_usbfs.cc index e0d578bc0a8..e5f1f285bcd 100644 --- a/chromium/device/usb/usb_device_handle_usbfs.cc +++ b/chromium/device/usb/usb_device_handle_usbfs.cc @@ -328,7 +328,7 @@ void UsbDeviceHandleUsbfs::FileThreadHelper::OnFileCanWriteWithoutBlocking() { std::vector<usbdevfs_urb*> urbs; urbs.reserve(MAX_URBS_PER_EVENT); for (size_t i = 0; i < MAX_URBS_PER_EVENT; ++i) { - usbdevfs_urb* urb; + usbdevfs_urb* urb = nullptr; int rc = HANDLE_EINTR(ioctl(fd_.get(), USBDEVFS_REAPURBNDELAY, &urb)); if (rc) { if (errno == EAGAIN) |