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.
Affected versions
Linux kernel versions
5.10.235,
5.15.179,
6.1.129,
6.6.78,
6.12.14,
6.13.3,
6.14
and later are affected. Fixed in
5.10.270,
5.15.221,
6.1.188,
6.6.157,
6.12.110,
6.18.51,
7.2.5,
7.3-rc1
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-89851?
CVE-2026-89851 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.10.235 onward and has been patched in 5.10.270, 5.15.221, 6.1.188 and others. CVE-2026-89851 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-89851?
Yes. CVE-2026-89851 has been patched. Fixed versions include 5.10.270, 5.15.221, 6.1.188 and others. If you are running Linux kernel 5.10.235 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-89851 actively exploited?
No. CVE-2026-89851 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.