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 5.6 07/50] vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
Date: Thu, 7 May 2020 10:26:43 -0400 [thread overview]
Message-ID: <20200507142726.25751-7-sashal@kernel.org> (raw)
In-Reply-To: <20200507142726.25751-1-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 a177bf2c66834..ec9be79ba2d79 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -554,7 +554,7 @@ 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 14:38 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-07 14:26 [PATCH AUTOSEL 5.6 01/50] RDMA/mlx4: Initialize ib_spec on the stack Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 02/50] RDMA/siw: Fix potential siw_mem refcnt leak in siw_fastreg_mr() Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 03/50] dmaengine: hisilicon: Fix build error without PCI_MSI Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 04/50] dmaengine: ti: k3-psil: fix deadlock on error path Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 05/50] dmaengine: xilinx_dma: Add missing check for empty list Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 06/50] nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Sasha Levin
2020-05-07 14:26 ` Sasha Levin [this message]
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 08/50] riscv: fix vdso build with lld Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 09/50] scsi: qla2xxx: set UNLOADING before waiting for session deletion Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 10/50] scsi: qla2xxx: check UNLOADING before posting async work Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 11/50] scsi: target/iblock: fix WRITE SAME zeroing Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 12/50] RDMA/mlx5: Set GRH fields in query QP on RoCE Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 13/50] RDMA/uverbs: Fix a race with disassociate and exit_mmap() Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 14/50] RDMA/core: Prevent mixed use of FDs between shared ufiles Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 15/50] RDMA/core: Fix overwriting of uobj in case of error Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 16/50] dmaengine: pch_dma.c: Avoid data race between probe and irq handler Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 17/50] dmaengine: mmp_tdma: Do not ignore slave config validation errors Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 18/50] dmaengine: mmp_tdma: Reset channel error on release Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 19/50] vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 20/50] ALSA: hda: Match both PCI ID and SSID for driver blacklist Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 21/50] drm/amd/display: blank dp stream before re-train the link Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 22/50] selftests/ftrace: Check the first record for kprobe_args_type.tc Sasha Levin
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 23/50] RDMA/core: Fix race between destroy and release FD object Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 24/50] cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 25/50] dma-buf: Fix SET_NAME ioctl uapi Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 26/50] nvme: prevent double free in nvme_alloc_ns() error handling Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 27/50] dmaengine: fix channel index enumeration Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 28/50] dmaengine: dmatest: Fix iteration non-stop logic Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 29/50] i2c: iproc: generate stop event for slave writes Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 30/50] ALSA: hda/hdmi: fix race in monitor detection during probe Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 31/50] dmaengine: dmatest: Fix process hang when reading 'wait' parameter Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 32/50] drm/amd/powerplay: avoid using pm_en before it is initialized revised Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 33/50] drm/amdgpu: bump version for invalidate L2 before SDMA IBs Sasha Levin
2020-05-07 16:11 ` Michel Dänzer
2020-05-16 23:08 ` Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 34/50] SUNRPC: defer slow parts of rpc_free_client() to a workqueue Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 35/50] drm/amd/display: check if REFCLK_CNTL register is present Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 36/50] drm/amd/display: Defer cursor update around VUPDATE for all ASIC Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 37/50] drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1 Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 38/50] Fix use after free in get_tree_bdev() Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 39/50] drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper() Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 40/50] ALSA: opti9xx: shut up gcc-10 range warning Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 41/50] i2c: aspeed: Avoid i2c interrupt status clear race condition Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 42/50] fibmap: Warn and return an error in case of block > INT_MAX Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 43/50] block: remove the bd_openers checks in blk_drop_partitions Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 44/50] arm64: vdso: Add -fasynchronous-unwind-tables to cflags Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 45/50] io_uring: use cond_resched() in io_ring_ctx_wait_and_kill() Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 46/50] iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system Sasha Levin
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