What’s Vulnerable › Vulnerabilities

CVE-2026-92477: scsi: ufs: debugfs: Reserve space for a string terminator

• 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: 2026-09-17 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: debugfs: Reserve space for a string terminator ufs_saved_err_write() copies user input into a zero-initialized stack buffer and passes it to kstrtoint(). A write that fills the entire buffer overwrites its only terminator. Reject an input whose length leaves no room for the trailing NUL.

Affected products

• Linux kernel: 5.16 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f
• https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f
• https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac
• https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664
• https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e
• https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a

Get alerted when CVE-2026-92477 or the next vulnerability affects your stack