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Pengpeng HouandWill Deacon fb80117fdd iommu/amd: Bound the early ACPI HID map

The ivrs_acpihid command-line parser appends entries to a fixed
four-element early_acpihid_map array. Unlike the sibling IOAPIC and HPET
parsers, it does not reject a fifth entry before incrementing the map size.

Check the capacity at the common found label before parsing the HID and
UID or writing the entry.

Fixes: ca3bf5d47c ("iommu/amd: Introduces ivrs_acpihid kernel parameter")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Reviewed-by: Ankit Soni <Ankit.Soni@amd.com>
Signed-off-by: Will Deacon <will@kernel.org>

2026-07-21 11:34:46 +00:00

amd_iommu_types.h

Merge branches 'apple/dart', 'arm/smmu/updates', 'arm/smmu/bindings', 'rockchip', 'verisilicon', 'riscv', 'intel/vt-d', 'amd/amd-vi' and 'core' into next

2026-06-12 14:57:23 +02:00

amd_iommu.h

Merge branches 'apple/dart', 'arm/smmu/updates', 'arm/smmu/bindings', 'rockchip', 'verisilicon', 'riscv', 'intel/vt-d', 'amd/amd-vi' and 'core' into next

2026-06-12 14:57:23 +02:00

debugfs.c

iommu/amd: Remove latent out-of-bounds access in IOMMU debugfs

2026-05-11 09:52:54 +02:00

init.c

iommu/amd: Bound the early ACPI HID map