Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 64ee3cf096ac590e7da2ceac1c390546bff5e240 before 88752b811f72aa7a16de6dad4b25031d7308673e; affected 64ee3cf096ac590e7da2ceac1c390546bff5e240 before eddd0159a8761a16a9d183676b03cf493417816e; affected 64ee3cf096ac590e7da2ceac1c390546bff5e240 before bba13ad17b1a11b3f1ed9b3a5d556191d7755a59 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.