From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yan Zhao <yan.y.zhao@intel.com>,
Alex Williamson <alex.williamson@redhat.com>,
Sasha Levin <sashal@kernel.org>,
kvm@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 03/20] vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
Date: Thu, 7 May 2020 10:28:59 -0400 [thread overview]
Message-ID: <20200507142917.26612-3-sashal@kernel.org> (raw)
In-Reply-To: <20200507142917.26612-1-sashal@kernel.org>
From: Yan Zhao <yan.y.zhao@intel.com>
[ Upstream commit 0ea971f8dcd6dee78a9a30ea70227cf305f11ff7 ]
add parentheses to avoid possible vaddr overflow.
Fixes: a54eb55045ae ("vfio iommu type1: Add support for mediated devices")
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/vfio/vfio_iommu_type1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index c362757540866..c635ba3167f7b 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -598,7 +598,7 @@ static int vfio_iommu_type1_pin_pages(void *iommu_data,
continue;
}
- remote_vaddr = dma->vaddr + iova - dma->iova;
+ remote_vaddr = dma->vaddr + (iova - dma->iova);
ret = vfio_pin_page_external(dma, remote_vaddr, &phys_pfn[i],
do_accounting);
if (ret)
--
2.20.1
next prev parent reply other threads:[~2020-05-07 14:29 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-07 14:28 [PATCH AUTOSEL 4.19 01/20] RDMA/mlx4: Initialize ib_spec on the stack Sasha Levin
2020-05-07 14:28 ` [PATCH AUTOSEL 4.19 02/20] nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Sasha Levin
2020-05-07 14:28 ` Sasha Levin [this message]
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 04/20] riscv: fix vdso build with lld Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 05/20] scsi: qla2xxx: check UNLOADING before posting async work Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 06/20] scsi: target/iblock: fix WRITE SAME zeroing Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 07/20] RDMA/mlx5: Set GRH fields in query QP on RoCE Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 08/20] RDMA/core: Prevent mixed use of FDs between shared ufiles Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 09/20] dmaengine: pch_dma.c: Avoid data race between probe and irq handler Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 10/20] dmaengine: mmp_tdma: Reset channel error on release Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 11/20] vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 12/20] ALSA: hda: Match both PCI ID and SSID for driver blacklist Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 13/20] RDMA/core: Fix race between destroy and release FD object Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 14/20] cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 15/20] dmaengine: dmatest: Fix iteration non-stop logic Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 16/20] ALSA: hda/hdmi: fix race in monitor detection during probe Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 17/20] drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper() Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 18/20] ALSA: opti9xx: shut up gcc-10 range warning Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 19/20] iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system Sasha Levin
2020-05-07 14:29 ` [PATCH AUTOSEL 4.19 20/20] iommu/qcom: Fix local_base status check Sasha Levin
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