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]
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
2a6d0d63d99956a66f6605832f11755d74a41951 to < 7a47e14c5fb0b6dba7073be7b0119fb8fe864e01affected2a6d0d63d99956a66f6605832f11755d74a41951 to < 6987e021b64cbb49981d140bb72d9d1466f191c4affected2a6d0d63d99956a66f6605832f11755d74a41951 to < 24576899c49509c0d533bcf569139f691d8f7af7affected2a6d0d63d99956a66f6605832f11755d74a41951 to < 2c54b9fca1755e80a343ccfde0652dc5ea4744b2affected2a6d0d63d99956a66f6605832f11755d74a41951 to < 9ff46b0bfeb6e0724a4ace015aa7a0b887cdb7c1affected2a6d0d63d99956a66f6605832f11755d74a41951 to < 44708208c2a4b828a57a2abe7799c9d3962e7eaaaffected2a6d0d63d99956a66f6605832f11755d74a41951 to < 2d2da5a4c1b4509f6f7e5a8db015cd420144beb4affected
Linux Linux
Default version status: affected
5.8affected0 to < 5.8unaffected5.10.235 to ≤ 5.10.*unaffected5.15.179 to ≤ 5.15.*unaffected6.1.129 to ≤ 6.1.*unaffected6.6.76 to ≤ 6.6.*unaffected6.12.13 to ≤ 6.12.*unaffected6.13.2 to ≤ 6.13.*unaffected6.14 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/7a47e14c5fb0b6dba7073be7b0119fb8fe864e01 ↗
- https://git.kernel.org/stable/c/6987e021b64cbb49981d140bb72d9d1466f191c4 ↗
- https://git.kernel.org/stable/c/24576899c49509c0d533bcf569139f691d8f7af7 ↗
- https://git.kernel.org/stable/c/2c54b9fca1755e80a343ccfde0652dc5ea4744b2 ↗
- https://git.kernel.org/stable/c/9ff46b0bfeb6e0724a4ace015aa7a0b887cdb7c1 ↗
- https://git.kernel.org/stable/c/44708208c2a4b828a57a2abe7799c9d3962e7eaa ↗
- https://git.kernel.org/stable/c/2d2da5a4c1b4509f6f7e5a8db015cd420144beb4 ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html ↗