Riskcovery

CVE-2026-97980

s390/debug: Fix NULL pointer dereference in debug_set_level()

State
Published
Severity
Not scored
Published
Sep 25, 2026
Updated
Oct 19, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • a2cec6863709d6673a025acc066c962b85a75842 to before 716e1cd3783806929407dbd596e6b1118971eb9eAffected
  • a2cec6863709d6673a025acc066c962b85a75842 to before b1eb31d533cdfcae1011ed53850d52f36afe5774Affected
LinuxLinux
  • 7.2Affected
  • before 7.2Not affected
  • 7.2.7 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.