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CVE-2026-89851

Unknown

Last modified

CVE-2026-89851 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3a5a789494875376d1f8063ec5ecc6beafda2ce1, < b0c08c08a08b6cca0e7e192bcbe0514e41fcc55f; >= 73d3d3c66f108bc47922490f8500842530139975, < 9932cbd0b49d0a5ab8378d32650ffb51604ffa35; >= 57c029cab0d908942e3ed9ff9fd0361144d01944, < f5e245164d187d1ee227140c8b2e83b67f59c1fd; >= 217230bc8796a922d5b15a9a94ec4414b2d2b3e3, < 5762d992dddaf301e7fb78f797de407116847121; >= 2cf3c3fe9a11aa168e80c966494c58548b9aed5d, < eff41f50461c238bd2c5cd20672a5b53e68d493a; >= 841df27d619ee1f5ca6473e15227b39d6136562d, < 7203d4aed8f444e7376c2dee8d93577b37cf9989; >= 841df27d619ee1f5ca6473e15227b39d6136562d, < aac0d3cb9199121d2ce5906e06f94b793fac1052; >= 841df27d619ee1f5ca6473e15227b39d6136562d, < b7368687e3d11f51392d3c4774ec0263d5fbf31f; a89872a61b914378591f16e428dd221c5e2059b2; >= 5.10.235, < 5.10.270; >= 5.15.179, < 5.15.221; >= 6.1.129, < 6.1.188; >= 6.6.78, < 6.6.157; >= 6.12.14, < 6.12.110; >= 6.13.3, < 6.14
LinuxLinux6.14

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89851?
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.
How severe is CVE-2026-89851?
Severity scoring for CVE-2026-89851 is pending analysis.
How do I fix CVE-2026-89851?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST