PT-2026-128563
Published
2026-10-18
·
Updated
2026-10-18
Description by
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In the Linux kernel, the following vulnerability has been resolved:
s390/debug: Fix NULL pointer dereference in debug info copy()
When debug register static() fails, it clears areas, active pages and
active entries but leaves the area bounds unchanged. Copying such an
area, either by opening its view file or via debug dump(), makes
debug info copy() dereference the NULL pointers.
Skip the copy loop when the source has no areas.
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Affected products
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