{"id":"CVE-2021-47509","state":"PUBLISHED","title":"ALSA: pcm: oss: Limit the period size to 16MB","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Limit the period size to 16MB\n\nSet the practical limit to the period size (the fragment shift in OSS)\ninstead of a full 31bit; a too large value could lead to the exhaust\nof memory as we allocate temporary buffers of the period size, too.\n\nAs of this patch, we set to 16MB limit, which should cover all use\ncases.","publishedAt":"2024-05-24T15:09:25.349Z","updatedAt":"2026-05-11T13:56:01.640Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux 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