{"id":"CVE-2021-47655","state":"PUBLISHED","title":"media: venus: vdec: fixed possible memory leak issue","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: venus: vdec: fixed possible memory leak issue\n\nThe venus_helper_alloc_dpb_bufs() implementation allows an early return\non an error path when checking the id from ida_alloc_min() which would\nnot release the earlier buffer allocation.\n\nMove the direct kfree() from the error checking of dma_alloc_attrs() to\nthe common fail path to ensure that allocations are released on all\nerror paths in this function.\n\nAddresses-Coverity: 1494120 (\"Resource leak\")","publishedAt":"2025-02-26T01:54:19.584Z","updatedAt":"2026-05-11T13:58:42.260Z","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":"745e6d8bbe6a6e2e40b1609cea114c129f17031a","status":"affected","lessThan":"5cedfe8aaf1875a5305897107b7f298db4260019","versionType":"git"},{"version":"40d87aafee29fb01ce1e1868502fb2059a6a7f34","status":"affected","lessThan":"55bccafc246b2e64763a155ec454470c07a54a6e","versionType":"git"},{"version":"40d87aafee29fb01ce1e1868502fb2059a6a7f34","status":"affected","lessThan":"5f89d05ba93df9c2cdfe493843f93288e55e99eb","versionType":"git"},{"version":"40d87aafee29fb01ce1e1868502fb2059a6a7f34","status":"affected","lessThan":"8403fdd775858a7bf04868d43daea0acbe49ddfc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/qcom/venus/helpers.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/qcom/venus/helpers.c"]}],"references":["https://git.kernel.org/stable/c/5cedfe8aaf1875a5305897107b7f298db4260019","https://git.kernel.org/stable/c/55bccafc246b2e64763a155ec454470c07a54a6e","https://git.kernel.org/stable/c/5f89d05ba93df9c2cdfe493843f93288e55e99eb","https://git.kernel.org/stable/c/8403fdd775858a7bf04868d43daea0acbe49ddfc"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47655.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47655","state":"PUBLISHED","datePublished":"2025-02-26T01:54:19.584Z","dateUpdated":"2026-05-11T13:58:42.260Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:48:21.520Z"},"containers":{"cna":{"title":"media: venus: vdec: fixed possible memory leak issue","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: venus: vdec: fixed possible memory leak issue\n\nThe venus_helper_alloc_dpb_bufs() implementation allows an early return\non an error path when checking the id from ida_alloc_min() which would\nnot release the earlier buffer allocation.\n\nMove the direct kfree() from the error checking of dma_alloc_attrs() to\nthe common fail path to ensure that allocations are released on all\nerror paths in this function.\n\nAddresses-Coverity: 1494120 (\"Resource leak\")"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"745e6d8bbe6a6e2e40b1609cea114c129f17031a","status":"affected","lessThan":"5cedfe8aaf1875a5305897107b7f298db4260019","versionType":"git"},{"version":"40d87aafee29fb01ce1e1868502fb2059a6a7f34","status":"affected","lessThan":"55bccafc246b2e64763a155ec454470c07a54a6e","versionType":"git"},{"version":"40d87aafee29fb01ce1e1868502fb2059a6a7f34","status":"affected","lessThan":"5f89d05ba93df9c2cdfe493843f93288e55e99eb","versionType":"git"},{"version":"40d87aafee29fb01ce1e1868502fb2059a6a7f34","status":"affected","lessThan":"8403fdd775858a7bf04868d43daea0acbe49ddfc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/qcom/venus/helpers.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/qcom/venus/helpers.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5cedfe8aaf1875a5305897107b7f298db4260019"},{"url":"https://git.kernel.org/stable/c/55bccafc246b2e64763a155ec454470c07a54a6e"},{"url":"https://git.kernel.org/stable/c/5f89d05ba93df9c2cdfe493843f93288e55e99eb"},{"url":"https://git.kernel.org/stable/c/8403fdd775858a7bf04868d43daea0acbe49ddfc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:58:42.260Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"5.16.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"5.17.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"5.18"}]}]}],"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-2021-47655","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:50:14.184131Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","lang":"en","type":"CWE","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:57:07.103Z"}}]}}}