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| author | Eric Auger <eric.auger@redhat.com> | 2023-07-17 18:21:26 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-08-03 16:06:49 -0400 |
| commit | cf2f89edf36a59183166ae8721a8d7ab5cd286bd (patch) | |
| tree | 905bf3dc502492f17f43af1b3a3165766c341d55 /hw/pci-bridge | |
| parent | c167c80b463768e04a22fbe37ba6c53a4a08e41e (diff) | |
hw/virtio-iommu: Fix potential OOB access in virtio_iommu_handle_command()
In the virtio_iommu_handle_command() when a PROBE request is handled,
output_size takes a value greater than the tail size and on a subsequent
iteration we can get a stack out-of-band access. Initialize the
output_size on each iteration.
The issue was found with ASAN. Credits to:
Yiming Tao(Zhejiang University)
Gaoning Pan(Zhejiang University)
Fixes: 1733eebb9e7 ("virtio-iommu: Implement RESV_MEM probe request")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Mauro Matteo Cascella <mcascell@redhat.com>
Cc: qemu-stable@nongnu.org
Message-Id: <20230717162126.11693-1-eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci-bridge')
0 files changed, 0 insertions, 0 deletions