{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47657", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:48:21.521Z", "datePublished": "2025-02-26T01:54:20.727Z", "dateUpdated": "2025-02-26T01:54:20.727Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-02-26T01:54:20.727Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()\n\nIf virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it\nhappened in the bug report by syzbot), virtio_gpu_array_put_free() could be\ncalled with objs equal to NULL.\n\nEnsure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise\nreturn from the function."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/virtio/virtgpu_gem.c"], "versions": [{"version": "377f8331d0565e6f71ba081c894029a92d0c7e77", "lessThan": "b094fece3810c71ceee6f0921676cb65d4e68c5a", "status": "affected", "versionType": "git"}, {"version": "377f8331d0565e6f71ba081c894029a92d0c7e77", "lessThan": "ac92b474eeeed75b8660374ba1d129a121c09da8", "status": "affected", "versionType": "git"}, {"version": "377f8331d0565e6f71ba081c894029a92d0c7e77", "lessThan": "abc9ad36df16e27ac1c665085157f1a082d39bac", "status": "affected", "versionType": "git"}, {"version": "377f8331d0565e6f71ba081c894029a92d0c7e77", "lessThan": "6b79f96f4a23846516e5e6e4dd37fc06f43a60dd", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/virtio/virtgpu_gem.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.32", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.18", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.1", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/b094fece3810c71ceee6f0921676cb65d4e68c5a"}, {"url": "https://git.kernel.org/stable/c/ac92b474eeeed75b8660374ba1d129a121c09da8"}, {"url": "https://git.kernel.org/stable/c/abc9ad36df16e27ac1c665085157f1a082d39bac"}, {"url": "https://git.kernel.org/stable/c/6b79f96f4a23846516e5e6e4dd37fc06f43a60dd"}], "title": "drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CC8679E8-F4E0-4BBF-8682-F0CDCBC99C1E", "versionEndExcluding": "5.12", "versionStartIncluding": "5.11.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8A712A85-BED7-44CD-A617-EFD0ABBF4FCC", "versionEndExcluding": "5.15.32", "versionStartIncluding": "5.12.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C86410A0-E312-4F41-93E9-929EAFB31757", "versionEndExcluding": "5.16.18", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3004D9BF-0093-4C9C-8560-F3E91AFAE409", "versionEndExcluding": "5.17.1", "versionStartIncluding": "5.17", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()\n\nIf virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it\nhappened in the bug report by syzbot), virtio_gpu_array_put_free() could be\ncalled with objs equal to NULL.\n\nEnsure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise\nreturn from the function."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/virtio: Aseg\u00farese de que objs no sea NULL en virtio_gpu_array_put_free() Si virtio_gpu_object_shmem_init() falla (por ejemplo, debido a la inyecci\u00f3n de fallos, como sucedi\u00f3 en el informe de error de syzbot), se podr\u00eda llamar a virtio_gpu_array_put_free() con objs igual a NULL. Aseg\u00farese de que objs no sea NULL en virtio_gpu_array_put_free() o, de lo contrario, regrese de la funci\u00f3n."}], "id": "CVE-2021-47657", "lastModified": "2025-03-18T18:50:28.090", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T06:37:07.467", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6b79f96f4a23846516e5e6e4dd37fc06f43a60dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/abc9ad36df16e27ac1c665085157f1a082d39bac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ac92b474eeeed75b8660374ba1d129a121c09da8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b094fece3810c71ceee6f0921676cb65d4e68c5a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()", "id": "2348201", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348201"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()\nIf virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it\nhappened in the bug report by syzbot), virtio_gpu_array_put_free() could be\ncalled with objs equal to NULL.\nEnsure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise\nreturn from the function."], "name": "CVE-2021-47657", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47657\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47657\nhttps://lore.kernel.org/linux-cve-announce/2025022650-CVE-2021-47657-6f3d@gregkh/T"], "threat_severity": "Low"}