UNKNOWN NVD
CVE-2026-74491
In the Linux kernel, the following vulnerability has been resolved: of/address: Fix NULL bus dereference in of_pci_range_parser_one() The bus matching rework
In the Linux kernel, the following vulnerability has been resolved:
of/address: Fix NULL bus dereference in of_pci_range_parser_one()
The bus matching rework made of_match_bus() return NULL for nodes with
ranges/dma-ranges but no local #address-cells. parser_init() stored that
NULL bus, and the range iterator later dereferenced it.
Reject such nodes in parser_init(), leaving an explicit empty
iterator for callers that ignore the init return, and make
of_dma_get_max_cpu_address() honour the init failure so a rejected node
cannot clamp the DMA limit.
References
- https://git.kernel.org/stable/c/88752b811f72aa7a16de6dad4b25031d7308673e
- https://git.kernel.org/stable/c/bba13ad17b1a11b3f1ed9b3a5d556191d7755a59
- https://git.kernel.org/stable/c/eddd0159a8761a16a9d183676b03cf493417816e
This unknown severity vulnerability was published on 2026-08-15 via NVD.
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