{"id":"CVE-2021-47644","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: staging: media: zoran: move videodev alloc\n\nMove some code out of zr36057_init() and create new functions for handling\nzr->video_dev","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: staging: media: zoran: move videodev alloc\n\nMove some code out of zr36057_init() and create new functions for handling\nzr->video_dev. This permit to ease code re…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401","CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.10.110","linux_kernel >= 5.11, < 5.15.33","linux_kernel >= 5.16, < 5.16.19","linux_kernel >= 5.17, < 5.17.2"],"patched":["linux_kernel 5.17.2"],"published":"2025-02-26","updated":"2026-08-11","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-47644","references":[{"url":"https://git.kernel.org/stable/c/1e501ec38796f43e995731d1bcd4173cb1ccfce0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8dce4b265a5357731058f69645840dabc718c687","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bd01629315ffd5b63da91d0bd529a77d30e55028","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c1ba65100a359fe28cfe37e09e10c99f247cbf1e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ff3357bffd9fb78f59762d8955afc7382a279079","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00254,"epssPercentile":0.17214,"ingestedAt":"2026-08-11T16:47:03.437Z","slug":"CVE-2021-47644","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmedia: staging: media: zoran: move videodev alloc\n\nMove some code out of zr36057_init() and create new functions for handling\nzr->video_dev. This permit to ease code reading and fix a zr->video_dev\nmemory leak.\n\n## Affected\n\n- `linux_kernel < 5.10.110`\n- `linux_kernel >= 5.11, < 5.15.33`\n- `linux_kernel >= 5.16, < 5.16.19`\n- `linux_kernel >= 5.17, < 5.17.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.17.2`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}