Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix FCE trace enable parsing in debugfs qla2x00_dfs_fce_write() called kstrtoul() with a NULL result pointer, so a successful parse would dereference NULL and oops. Worse, the int return value (0 on success, negative errno on failure) was assigned to the unsigned long enable flag, inverting the intended logic: a valid number was treated as "disable" while a parse failure enabled FCE. Parse the value into enable and propagate parse errors to userspace.
References
- https://git.kernel.org/stable/c/5762d992dddaf301e7fb78f797de407116847121
- https://git.kernel.org/stable/c/7203d4aed8f444e7376c2dee8d93577b37cf9989
- https://git.kernel.org/stable/c/9932cbd0b49d0a5ab8378d32650ffb51604ffa35
- https://git.kernel.org/stable/c/aac0d3cb9199121d2ce5906e06f94b793fac1052
- https://git.kernel.org/stable/c/b0c08c08a08b6cca0e7e192bcbe0514e41fcc55f
- https://git.kernel.org/stable/c/b7368687e3d11f51392d3c4774ec0263d5fbf31f
- https://git.kernel.org/stable/c/eff41f50461c238bd2c5cd20672a5b53e68d493a
- https://git.kernel.org/stable/c/f5e245164d187d1ee227140c8b2e83b67f59c1fd
FAQ
What is CVE-2026-89851?
CVE-2026-89851 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix FCE trace enable parsing in debugfs qla2x00_dfs_fce_write() called kstrtoul() with a NULL result pointer, so a ...
How severe is CVE-2026-89851?
CVSS scoring is not yet available for CVE-2026-89851. Check NVD for updates.
Is there a patch for CVE-2026-89851?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.