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.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Nov 3, 2026 | Sep 17, 2026 |
| Ubuntu | — | Upgrade linux-ibmUpgrade linux-awsUpgrade linux-gcpUpgrade linux-hwe-7.0Upgrade linuxUpgrade linux-oracleUpgrade linux-oem-7.0Upgrade linux-riscvUpgrade linux-riscv-7.0 | Nov 3, 2026 | Sep 17, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Nov 4, 2026 | Sep 17, 2026 |
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