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| author | Marcel Apfelbaum | 2021-06-30 13:52:46 +0200 |
|---|---|---|
| committer | Marcel Apfelbaum | 2021-07-04 21:47:51 +0200 |
| commit | 66ae37d8cc313f89272e711174a846a229bcdbd3 (patch) | |
| tree | a0e6d90c8d4a9c633eec87c1124ec8171d412690 /hw | |
| parent | pvrdma: Ensure correct input on ring init (CVE-2021-3607) (diff) | |
| download | qemu-66ae37d8cc313f89272e711174a846a229bcdbd3.tar.gz qemu-66ae37d8cc313f89272e711174a846a229bcdbd3.tar.xz qemu-66ae37d8cc313f89272e711174a846a229bcdbd3.zip | |
pvrdma: Fix the ring init error flow (CVE-2021-3608)
Do not unmap uninitialized dma addresses.
Fixes: CVE-2021-3608
Reviewed-by: VictorV (Kunlun Lab) <vv474172261@gmail.com>
Tested-by: VictorV (Kunlun Lab) <vv474172261@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <20210630115246.2178219-1-marcel@redhat.com>
Tested-by: Yuval Shaia <yuval.shaia.ml@gmail.com>
Reviewed-by: Yuval Shaia <yuval.shaia.ml@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/rdma/vmw/pvrdma_dev_ring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/rdma/vmw/pvrdma_dev_ring.c b/hw/rdma/vmw/pvrdma_dev_ring.c index 074ac59b84..42130667a7 100644 --- a/hw/rdma/vmw/pvrdma_dev_ring.c +++ b/hw/rdma/vmw/pvrdma_dev_ring.c @@ -41,7 +41,7 @@ int pvrdma_ring_init(PvrdmaRing *ring, const char *name, PCIDevice *dev, qatomic_set(&ring->ring_state->cons_head, 0); */ ring->npages = npages; - ring->pages = g_malloc(npages * sizeof(void *)); + ring->pages = g_malloc0(npages * sizeof(void *)); for (i = 0; i < npages; i++) { if (!tbl[i]) { |