CVE-2026-97980

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix NULL pointer dereference in debug_set_level() Commit a2cec6863709 ("s390/debug: Add s390dbf kernel parameter") incorrectly removed a null-id check from debug_set_level(), introducing a possible NULL pointer dereference for debug-API users that put debug_register() results unchecked into debug_set_level(). Fix this by moving the check from the internal _debug_set_level() variant back to the external debug_set_level() wrapper.

Package Linux Kernel
Published 2026-09-25
Last modified 2026-09-25
Patch available
Yes

Affected versions

Linux kernel versions 7.2 and later are affected. Fixed in 7.2.7, 7.3-rc3 and their respective stable series.

Affected from
≥ 7.2
Fixed in
✓ 7.2.7 7.2.x ✓ 7.3-rc3

References

2 total

Frequently asked questions

  • What is CVE-2026-97980?

    CVE-2026-97980 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 7.2 onward and has been patched in 7.2.7 and 7.3-rc3. CVE-2026-97980 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-97980?

    Yes. CVE-2026-97980 has been patched. Fixed versions include 7.2.7 and 7.3-rc3. If you are running Linux kernel 7.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-97980 actively exploited?

    No. CVE-2026-97980 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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