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CVE-2024-47739

Description

In the Linux kernel, the following vulnerability has been resolved:padata: use integer wrap around to prevent deadlock on seq_nr overflowWhen submitting more than 2^32 padata objects to padata_do_serial, thecurrent sorting implementation incorrectly sorts padata objects withoverflowed seq_nr, causing them to be placed before existing objects inthe reorder list. This leads to a deadlock in the serialization processas padata_find_next cannot match padata->seq_nr and pd->processedbecause the padata instance with overflowed seq_nr will be selectednext.To fix this, we use an unsigned integer wrap around to correctly sortpadata objects in scenarios with integer overflow.

POC

Reference

No PoCs from references.

Github

- https://github.com/fkie-cad/nvd-json-data-feeds

- https://github.com/w4zu/Debian_security