Acknowledged
Created: Feb 27, 2025
Updated: Jun 17, 2025
Found In Version: 10.21.20.1
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel
In the Linux kernel, the following vulnerability has been resolved:PCI: rcar-ep: Fix incorrect variable used when calling devm_request_mem_region()The rcar_pcie_parse_outbound_ranges() uses the devm_request_mem_region()macro to request a needed resource. A string variable that lives on thestack is then used to store a dynamically computed resource name, whichis then passed on as one of the macro arguments. This can lead toundefined behavior.Depending on the current contents of the memory, the manifestations oferrors may vary. One possible output may be as follows: $ cat /proc/iomem 30000000-37ffffff : 38000000-3fffffff :Sometimes, garbage may appear after the colon.In very rare cases, if no NULL-terminator is found in memory, the systemmight crash because the string iterator will overrun which can lead toaccess of unmapped memory above the stack.Thus, fix this by replacing outbound_name with the name of the previouslyrequested resource. With the changes applied, the output will be asfollows: $ cat /proc/iomem 30000000-37ffffff : memory2 38000000-3fffffff : memory3kwilczynski: commit log]
CREATE(Triage):(User=admin) [CVE-2025-21804 (https://nvd.nist.gov/vuln/detail/CVE-2025-21804)