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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-17 15:24:35 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-17 15:24:35 +0200 |
| commit | 753e23ea588d353da9d0a2672828336453607265 (patch) | |
| tree | a0eb4875ecde41725fe890e27f52d69812031ea1 /drivers/vfio/pci/vfio_pci.c | |
| parent | ASoC: dmaengine_pcm: Add support for compat platforms (diff) | |
| parent | Linux 3.9-rc7 (diff) | |
| download | linux-753e23ea588d353da9d0a2672828336453607265.tar.xz linux-753e23ea588d353da9d0a2672828336453607265.zip | |
Merge tag 'v3.9-rc7' into asoc-dma
Linux 3.9-rc7
Diffstat (limited to 'drivers/vfio/pci/vfio_pci.c')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 8189cb6a86af..7abc5c81af2c 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -346,6 +346,7 @@ static long vfio_pci_ioctl(void *device_data, if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) { size_t size; + int max = vfio_pci_get_irq_count(vdev, hdr.index); if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL) size = sizeof(uint8_t); @@ -355,7 +356,7 @@ static long vfio_pci_ioctl(void *device_data, return -EINVAL; if (hdr.argsz - minsz < hdr.count * size || - hdr.count > vfio_pci_get_irq_count(vdev, hdr.index)) + hdr.start >= max || hdr.start + hdr.count > max) return -EINVAL; data = memdup_user((void __user *)(arg + minsz), |