What’s Vulnerable › Vulnerabilities

CVE-2025-40345: usb: storage: sddr55: Reject out-of-bound new_pba

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-12 · updated 2026-10-14

Description

In the Linux kernel, the following vulnerability has been resolved: usb: storage: sddr55: Reject out-of-bound new_pba Discovered by Atuin - Automated Vulnerability Discovery Engine. new_pba comes from the status packet returned after each write. A bogus device could report values beyond the block count derived from info->capacity, letting the driver walk off the end of pba_to_lba[] and corrupt heap memory. Reject PBAs that exceed the computed block count and fail the transfer so we avoid touching out-of-range mapping entries.

Affected products

• Linux kernel: 2.6.12 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/04a8a6393f3f2f471e05eacca33282dd30b01432
• https://git.kernel.org/stable/c/26e9b5da3231da7dc357b363883b5b7b51a64092
• https://git.kernel.org/stable/c/5ebe8d479aaf4f41ac35e6955332304193c646f6
• https://git.kernel.org/stable/c/a20f1dd19d21dcb70140ea5a71b1f8cbe0c7e68f
• https://git.kernel.org/stable/c/aa64e0e17e3a5991a25e6a46007770c629039869
• https://git.kernel.org/stable/c/b59d4fda7e7d0aff1043a7f742487cb829f5aac1
• https://git.kernel.org/stable/c/d00a6c04a502cd52425dbf35588732c652b16490
• https://cert-portal.siemens.com/productcert/html/ssa-253495.html

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