CVE - CVE-2025-21804

CVE-ID
CVE-2025-21804	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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 the stack is then used to store a dynamically computed resource name, which is then passed on as one of the macro arguments. This can lead to undefined behavior. Depending on the current contents of the memory, the manifestations of errors 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 system might crash because the string iterator will overrun which can lead to access of unmapped memory above the stack. Thus, fix this by replacing outbound_name with the name of the previously requested resource. With the changes applied, the output will be as follows: $ cat /proc/iomem 30000000-37ffffff : memory2 38000000-3fffffff : memory3 [kwilczynski: commit log]
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/24576899c49509c0d533bcf569139f691d8f7af7 URL:https://git.kernel.org/stable/c/24576899c49509c0d533bcf569139f691d8f7af7 MISC:https://git.kernel.org/stable/c/2c54b9fca1755e80a343ccfde0652dc5ea4744b2 URL:https://git.kernel.org/stable/c/2c54b9fca1755e80a343ccfde0652dc5ea4744b2 MISC:https://git.kernel.org/stable/c/2d2da5a4c1b4509f6f7e5a8db015cd420144beb4 URL:https://git.kernel.org/stable/c/2d2da5a4c1b4509f6f7e5a8db015cd420144beb4 MISC:https://git.kernel.org/stable/c/44708208c2a4b828a57a2abe7799c9d3962e7eaa URL:https://git.kernel.org/stable/c/44708208c2a4b828a57a2abe7799c9d3962e7eaa MISC:https://git.kernel.org/stable/c/9ff46b0bfeb6e0724a4ace015aa7a0b887cdb7c1 URL:https://git.kernel.org/stable/c/9ff46b0bfeb6e0724a4ace015aa7a0b887cdb7c1
Assigning CNA
kernel.org
Date Record Created
20241229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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