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linux/drivers/iommu
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Simon Xue 53892dc686 iommu/rockchip: prevent iommus dead loop when two masters share one IOMMU 
commit 62e062a29a upstream.

When two masters share an IOMMU, calling ops->of_xlate during
the second master's driver init may overwrite iommu->domain set
by the first. This causes the check if (iommu->domain == domain)
in rk_iommu_attach_device() to fail, resulting in the same
iommu->node being added twice to &rk_domain->iommus, which can
lead to an infinite loop in subsequent &rk_domain->iommus operations.

Cc: <stable@vger.kernel.org>
Fixes: 25c2325575 ("iommu/rockchip: Add missing set_platform_dma_ops callback")
Signed-off-by: Simon Xue <xxm@rock-chips.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20250623020018.584802-1-xxm@rock-chips.com
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-07-10 16:05:12 +02:00
..
amd iommu/amd: Ensure GA log notifier callbacks finish running before module unload 2025-06-27 11:11:32 +01:00
arm iommu/arm-smmu-v3: Fix pgsize_bit for sva domains 2025-05-09 09:50:34 +02:00
intel iommu/vt-d: Restore context entry setup order for aliased devices 2025-06-27 11:11:21 +01:00
iommufd iommufd: Disallow allocating nested parent domain with fault ID 2025-05-29 11:02:31 +02:00
apple-dart.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
dma-iommu.c genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie 2025-05-29 11:02:41 +02:00
dma-iommu.h iommu/dma: Centralise iommu_setup_dma_ops() 2024-04-26 12:07:26 +02:00
exynos-iommu.c iommu/exynos: Fix suspend/resume with IDENTITY domain 2025-04-20 10:15:09 +02:00
fsl_pamu.c iommu/fsl: fix all kernel-doc warnings in fsl_pamu.c 2023-03-22 14:50:15 +01:00
fsl_pamu.h iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace 2021-04-07 10:56:52 +02:00
fsl_pamu_domain.c iommu: Use of_property_present() 2024-09-04 11:31:01 +02:00
fsl_pamu_domain.h iommu/fsl_pamu: remove the snoop_id field 2021-04-07 10:56:52 +02:00
hyperv-iommu.c x86/vector: Rename send_cleanup_vector() to vector_schedule_cleanup() 2023-08-06 14:15:09 +02:00
io-pgfault.c iommu: Fix potential memory leak in iopf_queue_remove_device() 2025-02-21 14:01:36 +01:00
io-pgtable-arm-v7s.c iommu: Do not return 0 from map_pages if it doesn't do anything 2024-08-26 09:16:13 +02:00
io-pgtable-arm.c iommu/io-pgtable-arm: Fix stage-2 map/unmap for concatenated tables 2024-12-09 10:41:01 +01:00
io-pgtable-arm.h iommu/io-pgtable-arm: Move some definitions to a header 2020-09-28 23:48:06 +01:00
io-pgtable-dart.c iommu: Do not return 0 from map_pages if it doesn't do anything 2024-08-26 09:16:13 +02:00
io-pgtable.c iommu: Allow passing custom allocators to pgtable drivers 2023-11-27 11:10:12 +01:00
iommu-debugfs.c iommu: Fix IOMMU debugfs fallout 2019-02-26 11:15:58 +01:00
iommu-pages.h iommu: account IOMMU allocated memory 2024-04-15 14:31:48 +02:00
iommu-priv.h iommu: Keep dev->iommu state consistent 2025-05-29 11:02:22 +02:00
iommu-sva.c Merge branch 'iommu/iommufd/attach-handles' into iommu/next 2024-07-12 16:57:42 +01:00
iommu-sysfs.c iommu: Do not export iommu_device_link/unlink() 2023-07-14 16:14:15 +02:00
iommu-traces.c iommu: Remove detach_dev callback 2023-01-13 16:39:18 +01:00
iommu.c iommu: Protect against overflow in iommu_pgsize() 2025-06-19 15:31:45 +02:00
iova.c iommu/iova: Add missing MODULE_DESCRIPTION() macro 2024-06-14 16:51:10 +02:00
ipmmu-vmsa.c iommu: ipmmu-vmsa: avoid Wformat-security warning 2025-07-10 16:04:59 +02:00
irq_remapping.c IOMMU Updates for Linux v6.10 2024-05-18 10:55:13 -07:00
irq_remapping.h iommu/vt-d: Allocate DMAR fault interrupts locally 2024-04-26 11:57:36 +02:00
Kconfig iommu: remove duplicate selection of DMAR_TABLE 2025-06-19 15:31:50 +02:00
Makefile iommu: Separate SVA and IOPF 2024-02-16 15:19:29 +01:00
msm_iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
msm_iommu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
msm_iommu_hw-8xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
mtk_iommu.c iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group 2025-04-20 10:15:09 +02:00
mtk_iommu_v1.c ARM: 9417/1: dma-mapping: Pass device to arm_iommu_create_mapping() 2024-09-04 15:02:07 +01:00
of_iommu.c iommu: Keep dev->iommu state consistent 2025-05-29 11:02:22 +02:00
omap-iommu-debug.c iommu/omap: Fix buffer overflow in debugfs 2022-09-07 10:42:28 +02:00
omap-iommu.c iommu: Mark dev_iommu_priv_set() with a lockdep 2023-12-12 10:18:49 +01:00
omap-iommu.h iommu/omap: Convert to generic_single_device_group() 2023-09-25 11:52:08 +02:00
omap-iopgtable.h iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architectures 2020-03-04 16:24:46 +01:00
rockchip-iommu.c iommu/rockchip: prevent iommus dead loop when two masters share one IOMMU 2025-07-10 16:05:12 +02:00
s390-iommu.c iommu/s390: Implement blocking domain 2024-12-05 14:02:03 +01:00
sprd-iommu.c iommu: sprd: Avoid NULL deref in sprd_iommu_hw_en 2024-07-23 17:09:28 +01:00
sun50i-iommu.c iommu: sun50i: Add H616 compatible string 2024-06-25 14:02:47 +02:00
tegra-smmu.c Merge branch 'iommu/fwspec-ops-removal' into iommu/next 2024-07-12 16:55:43 +01:00
virtio-iommu.c virtio: rename virtio_find_vqs_info() to virtio_find_vqs() 2024-07-17 05:20:58 -04:00