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fab7f25922
linux-next/drivers/virtio
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Maximilian Heyne fab7f25922 virtio-mmio: fix memory leak of vm_dev 
With the recent removal of vm_dev from devres its memory is only freed
via the callback virtio_mmio_release_dev. However, this only takes
effect after device_add is called by register_virtio_device. Until then
it's an unmanaged resource and must be explicitly freed on error exit.

This bug was discovered and resolved using Coverity Static Analysis
Security Testing (SAST) by Synopsys, Inc.

Cc: stable@vger.kernel.org
Fixes: 55c91fedd0 ("virtio-mmio: don't break lifecycle of vm_dev")
Signed-off-by: Maximilian Heyne <mheyne@amazon.de>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>

Message-Id: <20230911090328.40538-1-mheyne@amazon.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2023-10-18 11:29:09 -04:00
..
Kconfig virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
Makefile virtio: replace restricted mem access flag with callback 2022-08-01 07:42:49 +02:00
virtio_anchor.c virtio: replace restricted mem access flag with callback 2022-08-01 07:42:49 +02:00
virtio_balloon.c mm, treewide: redefine MAX_ORDER sanely 2023-04-05 19:42:46 -07:00
virtio_dma_buf.c dma-buf: move dma-buf symbols into the DMA_BUF module namespace 2021-10-25 14:53:08 +02:00
virtio_input.c virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
virtio_mem.c virtio-mem: check if the config changed before fake offlining memory 2023-08-10 15:51:46 -04:00
virtio_mmio.c virtio-mmio: fix memory leak of vm_dev 2023-10-18 11:29:09 -04:00
virtio_pci_common.c virtio-pci: Fix legacy device flag setting error in probe 2023-08-10 15:24:28 -04:00
virtio_pci_common.h virtio_pci: Optimize virtio_pci_device structure size 2023-06-27 10:47:08 -04:00
virtio_pci_legacy_dev.c virtio/virtio_pci_legacy_dev: ensure the correct return value 2022-01-14 18:50:53 -05:00
virtio_pci_legacy.c virtio-pci: Fix legacy device flag setting error in probe 2023-08-10 15:24:28 -04:00
virtio_pci_modern_dev.c virtio: allow caller to override device DMA mask in vp_modern 2023-06-27 10:47:08 -04:00
virtio_pci_modern.c virtio: add VIRTIO_F_NOTIFICATION_DATA feature support 2023-04-21 03:02:35 -04:00
virtio_ring.c virtio_ring: fix avail_wrap_counter in virtqueue_add_packed 2023-09-03 18:10:24 -04:00
virtio_vdpa.c virtio_vdpa: build affinity masks conditionally 2023-09-03 18:10:24 -04:00
virtio.c driver core: make struct bus_type.uevent() take a const * 2023-01-27 13:45:52 +01:00