{"id":"CVE-2025-39795","state":"PUBLISHED","title":"block: avoid possible overflow for chunk_sectors check in blk_stack_limits()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: avoid possible overflow for chunk_sectors check in blk_stack_limits()\n\nIn blk_stack_limits(), we check that the t->chunk_sectors value is a\nmultiple of the t->physical_block_size value.\n\nHowever, by finding the chunk_sectors value in bytes, we may overflow\nthe unsigned int which holds chunk_sectors, so change the check to be\nbased on sectors.","publishedAt":"2025-09-12T15:59:32.037Z","updatedAt":"2026-10-15T01:08:22.910Z","severity":null,"assigner":"Linux","products":["Linux 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