{"id":"CVE-2021-47645","state":"PUBLISHED","title":"media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com\n\nOn the case tmp_dcim=1, the index of buffer is miscalculated.\nThis generate a NULL pointer dereference later.\n\nSo let's fix the calcul and add a check to prevent this to reappear.","publishedAt":"2025-02-26T01:54:14.651Z","updatedAt":"2026-08-11T02:05:29.673Z","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 Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"8dce4b265a5357731058f69645840dabc718c687","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"20db2ed1e2f9fcd417fa67853e5154f0c2537d6c","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"20811bbe685ca3eddd34b0c750860427d7030910","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/zoran/zoran_device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.2","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/zoran/zoran_device.c"]}],"references":["https://git.kernel.org/stable/c/8dce4b265a5357731058f69645840dabc718c687","https://git.kernel.org/stable/c/bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e","https://git.kernel.org/stable/c/7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52","https://git.kernel.org/stable/c/20db2ed1e2f9fcd417fa67853e5154f0c2537d6c","https://git.kernel.org/stable/c/20811bbe685ca3eddd34b0c750860427d7030910"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47645.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47645","state":"PUBLISHED","datePublished":"2025-02-26T01:54:14.651Z","dateUpdated":"2026-08-11T02:05:29.673Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:48:21.519Z"},"containers":{"cna":{"title":"media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com\n\nOn the case tmp_dcim=1, the index of buffer is miscalculated.\nThis generate a NULL pointer dereference later.\n\nSo let's fix the calcul and add a check to prevent this to reappear."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"8dce4b265a5357731058f69645840dabc718c687","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"20db2ed1e2f9fcd417fa67853e5154f0c2537d6c","versionType":"git"},{"version":"83f89a8bcbc3c520a889b5fc7c4b95669d712f65","status":"affected","lessThan":"20811bbe685ca3eddd34b0c750860427d7030910","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/zoran/zoran_device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.2","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/zoran/zoran_device.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/8dce4b265a5357731058f69645840dabc718c687"},{"url":"https://git.kernel.org/stable/c/bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e"},{"url":"https://git.kernel.org/stable/c/7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52"},{"url":"https://git.kernel.org/stable/c/20db2ed1e2f9fcd417fa67853e5154f0c2537d6c"},{"url":"https://git.kernel.org/stable/c/20811bbe685ca3eddd34b0c750860427d7030910"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-11T02:05:29.673Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.16.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.17.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2021-47645","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:50:33.182211Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:57:07.833Z"}}]}}}