Description
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Validate string descriptors The string descriptor length includes a two-byte header while the UTF-16 payload starts after it. utf16s_to_utf8s() expects a count of UTF-16 code units, not bytes. Passing the payload byte count can make it read beyond the descriptor buffer. Validate that the payload has an even byte count, pass a code-unit count to the converter, and allocate sufficient UTF-8 output space. The raw string buffer starts after the descriptor header but its size is bLength. Copying bLength bytes from that pointer can read beyond the response buffer. Allocate a zeroed bLength-sized buffer and copy only the UTF-16 payload. This preserves the raw buffer size consumed by the RPMB device-ID ABI while avoiding the overread.
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
4b828fe156a662a4b6135019bf077040340f299b to < 22c076f72ad67d89dab58d9c97a17c33e8130e82affected4b828fe156a662a4b6135019bf077040340f299b to < 566109f1ee4e389b4effab43b0ce1fdab302e9deaffected4b828fe156a662a4b6135019bf077040340f299b to < 02dd1a65dff842d9360a38ebe243dc8f6adbbaf5affected4b828fe156a662a4b6135019bf077040340f299b to < f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4affected4b828fe156a662a4b6135019bf077040340f299b to < 66da25277256b6bf4c3fdbf3c9bfd43324c9cf25affected4b828fe156a662a4b6135019bf077040340f299b to < d96e83d028d7d8762e424e49c671d49ac2ecf14faffected
Linux Linux
Default version status: affected
5.4affected0 to < 5.4unaffected6.1.191 to ≤ 6.1.*unaffected6.6.160 to ≤ 6.6.*unaffected6.12.114 to ≤ 6.12.*unaffected6.18.57 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/22c076f72ad67d89dab58d9c97a17c33e8130e82 ↗
- https://git.kernel.org/stable/c/566109f1ee4e389b4effab43b0ce1fdab302e9de ↗
- https://git.kernel.org/stable/c/02dd1a65dff842d9360a38ebe243dc8f6adbbaf5 ↗
- https://git.kernel.org/stable/c/f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4 ↗
- https://git.kernel.org/stable/c/66da25277256b6bf4c3fdbf3c9bfd43324c9cf25 ↗
- https://git.kernel.org/stable/c/d96e83d028d7d8762e424e49c671d49ac2ecf14f ↗