9803c6ed12
- hw/virtio/virtio-crypto: Protect from DMA re-entrancy bugs(CVE-2024-3446) - hw/char/virtio-serial-bus: Protect from DMA re-entrancy bugs(CVE-2024-3446) - hw/display/virtio-gpu: Protect from DMA re-entrancy bugs(CVE-2024-3446) - hw/virtio: Introduce virtio_bh_new_guarded() helper - hw: replace most qemu_bh_new calls with qemu_bh_new_guarded - checkpatch: add qemu_bh_new/aio_bh_new checks - async: avoid use-after-free on re-entrancy guard - async: Add an optional reentrancy guard to the BH API - hw/sd/sdhci: Do not update TRNMOD when Command Inhibit (DAT) is set(CVE-2024-3447) - rtl8139: Remove unused variable - tulip: Remove unused variable - virtio-mem: Fix the bitmap index of the section offset - virtio-mem: Fix the iterator variable in a vmem->rdl_list loop - system/memory: use ldn_he_p/stn_he_p - block: Fix crash when loading snapshot on inactive node - smmu: Clear SMMUPciBus pointer cache when system reset - block/mirror: Fix NULL s->job in active writes - amd_iommu: Fix APIC address check - virtio-crypto: fix NULL pointer dereference in virtio_crypto_free_reques - libqos/virtio.c: Correct 'flags' reading in qvirtqueue_kick cherry-pick from 66e411885a23c96ff73742d06b793fec3ceaebb7 - ivshmem-test.c: enable test_ivshmem_server for ppc64 arch - ivshmem.c: change endianness to LITTLE_ENDIAN - hw/ppc/mac.h: Remove MAX_CPUS macro - configure: remove dead variables - virtio-gpu: do not byteswap padding - hw/intc: clean-up error reporting for failed ITS cmd - qemu-iotests: Discard stderr when probing devices - linux-user: un-parent OBJECT(cpu) when closing thread - hw/net/rocker: Avoid undefined shifts with more than 31 ports - contrib/vhost-user-blk: Clean up deallocation of VuVirtqElement - scsi-disk: fix overflow when block size is not a multiple of BDRV_SECTOR_SIZE Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com> (cherry picked from commit bf54b48c2963c869dfdc89977c57be4bd9e772aa)
43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
From 4d1cd3fcaa2939da851e39e419c433adcd672145 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@linaro.org>
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Date: Thu, 4 Apr 2024 20:56:35 +0200
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Subject: [PATCH] hw/char/virtio-serial-bus: Protect from DMA re-entrancy
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bugs(CVE-2024-3446)
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Replace qemu_bh_new_guarded() by virtio_bh_new_guarded()
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so the bus and device use the same guard. Otherwise the
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DMA-reentrancy protection can be bypassed.
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Fixes: CVE-2024-3446
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Cc: qemu-stable@nongnu.org
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Suggested-by: Alexander Bulekov <alxndr@bu.edu>
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Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
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Acked-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Message-Id: <20240409105537.18308-4-philmd@linaro.org>
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---
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hw/char/virtio-serial-bus.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
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index 14716b66cc..e7f3e1eb87 100644
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--- a/hw/char/virtio-serial-bus.c
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+++ b/hw/char/virtio-serial-bus.c
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@@ -990,8 +990,7 @@ static void virtser_port_device_realize(DeviceState *dev, Error **errp)
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return;
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}
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- port->bh = qemu_bh_new_guarded(flush_queued_data_bh, port,
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- &dev->mem_reentrancy_guard);
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+ port->bh = virtio_bh_new_guarded(dev, flush_queued_data_bh, port);
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port->elem = NULL;
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}
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--
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2.27.0
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