PT-2026-98644 · Linux · Linux
CVE-2026-97980
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Published
2026-09-25
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Updated
2026-09-25
None
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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.
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Related Identifiers
Affected Products
Linux