CVE-2022-50058

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50058", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.404Z", "datePublished": "2025-06-18T11:02:06.988Z", "dateUpdated": "2026-05-11T19:12:02.846Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:12:02.846Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim_blk: set number of address spaces and virtqueue groups\n\nCommit bda324fd037a (\"vdpasim: control virtqueue support\") added two\nnew fields (nas, ngroups) to vdpasim_dev_attr, but we forgot to\ninitialize them for vdpa_sim_blk.\n\nWhen creating a new vdpa_sim_blk device this causes the kernel\nto panic in this way:\n \u00a0 \u00a0$ vdpa dev add mgmtdev vdpasim_blk name blk0\n \u00a0 \u00a0BUG: kernel NULL pointer dereference, address: 0000000000000030\n \u00a0 \u00a0...\n \u00a0 \u00a0RIP: 0010:vhost_iotlb_add_range_ctx+0x41/0x220 [vhost_iotlb]\n \u00a0 \u00a0...\n \u00a0 \u00a0Call Trace:\n \u00a0 \u00a0 <TASK>\n \u00a0 \u00a0 vhost_iotlb_add_range+0x11/0x800 [vhost_iotlb]\n \u00a0 \u00a0 vdpasim_map_range+0x91/0xd0 [vdpa_sim]\n \u00a0 \u00a0 vdpasim_alloc_coherent+0x56/0x90 [vdpa_sim]\n \u00a0 \u00a0 ...\n\nThis happens because vdpasim->iommu[0] is not initialized when\ndev_attr.nas is 0.\n\nLet's fix this issue by initializing both (nas, ngroups) to 1 for\nvdpa_sim_blk."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/vdpa/vdpa_sim/vdpa_sim_blk.c"], "versions": [{"version": "bda324fd037a6b0d44da5699574ce741ca161bc4", "lessThan": "a291c7d289fac2cb13fb2614a9a251afbbd86ce9", "status": "affected", "versionType": "git"}, {"version": "bda324fd037a6b0d44da5699574ce741ca161bc4", "lessThan": "19cd4a5471b8eaa4bd161b0fdb4567f2fc88d809", "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/vdpa/vdpa_sim/vdpa_sim_blk.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.4", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "5.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a291c7d289fac2cb13fb2614a9a251afbbd86ce9"}, {"url": "https://git.kernel.org/stable/c/19cd4a5471b8eaa4bd161b0fdb4567f2fc88d809"}], "title": "vdpa_sim_blk: set number of address spaces and virtqueue groups", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/vdpa/vdpa_sim/vdpa_sim_blk.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a291c7d289fac2cb13fb2614a9a251afbbd86ce9", "status": "affected", "version": "bda324fd037a6b0d44da5699574ce741ca161bc4", "versionType": "git"}, {"lessThan": "19cd4a5471b8eaa4bd161b0fdb4567f2fc88d809", "status": "affected", "version": "bda324fd037a6b0d44da5699574ce741ca161bc4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/vdpa/vdpa_sim/vdpa_sim_blk.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"lessThan": "5.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.19.*", "status": "unaffected", "version": "5.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B05B3A7-DED2-4B21-94AE-AE1F779C2A3D", "versionEndExcluding": "5.19.4", "versionStartIncluding": "5.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim_blk: set number of address spaces and virtqueue groups\n\nCommit bda324fd037a (\"vdpasim: control virtqueue support\") added two\nnew fields (nas, ngroups) to vdpasim_dev_attr, but we forgot to\ninitialize them for vdpa_sim_blk.\n\nWhen creating a new vdpa_sim_blk device this causes the kernel\nto panic in this way:\n \u00a0 \u00a0$ vdpa dev add mgmtdev vdpasim_blk name blk0\n \u00a0 \u00a0BUG: kernel NULL pointer dereference, address: 0000000000000030\n \u00a0 \u00a0...\n \u00a0 \u00a0RIP: 0010:vhost_iotlb_add_range_ctx+0x41/0x220 [vhost_iotlb]\n \u00a0 \u00a0...\n \u00a0 \u00a0Call Trace:\n \u00a0 \u00a0 <TASK>\n \u00a0 \u00a0 vhost_iotlb_add_range+0x11/0x800 [vhost_iotlb]\n \u00a0 \u00a0 vdpasim_map_range+0x91/0xd0 [vdpa_sim]\n \u00a0 \u00a0 vdpasim_alloc_coherent+0x56/0x90 [vdpa_sim]\n \u00a0 \u00a0 ...\n\nThis happens because vdpasim->iommu[0] is not initialized when\ndev_attr.nas is 0.\n\nLet's fix this issue by initializing both (nas, ngroups) to 1 for\nvdpa_sim_blk."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vdpa_sim_blk: establecer el n\u00famero de espacios de direcciones y grupos virtqueue. el commit bda324fd037a (\"vdpasim: controlar la compatibilidad con virtqueue\") agreg\u00f3 dos nuevos campos (nas, ngroups) a vdpasim_dev_attr, pero olvidamos inicializarlos para vdpa_sim_blk. Al crear un nuevo dispositivo vdpa_sim_blk esto hace que el kernel entre en p\u00e1nico de esta manera: $ vdpa dev add mgmtdev vdpasim_blk name blk0 BUG: kernel NULL pointer dereference, address: 0000000000000030 ... RIP: 0010:vhost_iotlb_add_range_ctx+0x41/0x220 [vhost_iotlb] ... Call Trace: vhost_iotlb_add_range+0x11/0x800 [vhost_iotlb] vdpasim_map_range+0x91/0xd0 [vdpa_sim] vdpasim_alloc_coherent+0x56/0x90 [vdpa_sim] ... Esto sucede porque vdpasim-&gt;iommu[0] no se inicializa cuando dev_attr.nas es 0. Solucionemos este problema inicializando ambos (nas, ngroups) en 1 para vdpa_sim_blk."}], "id": "CVE-2022-50058", "lastModified": "2026-06-17T05:22:39.683", "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": "2025-06-18T11:15:34.497", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/19cd4a5471b8eaa4bd161b0fdb4567f2fc88d809"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a291c7d289fac2cb13fb2614a9a251afbbd86ce9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: vdpa_sim_blk: set number of address spaces and virtqueue groups", "id": "2373509", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373509"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nvdpa_sim_blk: set number of address spaces and virtqueue groups\nCommit bda324fd037a (\"vdpasim: control virtqueue support\") added two\nnew fields (nas, ngroups) to vdpasim_dev_attr, but we forgot to\ninitialize them for vdpa_sim_blk.\nWhen creating a new vdpa_sim_blk device this causes the kernel\nto panic in this way:\n\u00a0 \u00a0$ vdpa dev add mgmtdev vdpasim_blk name blk0\n\u00a0 \u00a0BUG: kernel NULL pointer dereference, address: 0000000000000030\n\u00a0 \u00a0...\n\u00a0 \u00a0RIP: 0010:vhost_iotlb_add_range_ctx+0x41/0x220 [vhost_iotlb]\n\u00a0 \u00a0...\n\u00a0 \u00a0Call Trace:\n\u00a0 \u00a0 <TASK>\n\u00a0 \u00a0 vhost_iotlb_add_range+0x11/0x800 [vhost_iotlb]\n\u00a0 \u00a0 vdpasim_map_range+0x91/0xd0 [vdpa_sim]\n\u00a0 \u00a0 vdpasim_alloc_coherent+0x56/0x90 [vdpa_sim]\n\u00a0 \u00a0 ...\nThis happens because vdpasim->iommu[0] is not initialized when\ndev_attr.nas is 0.\nLet's fix this issue by initializing both (nas, ngroups) to 1 for\nvdpa_sim_blk."], "name": "CVE-2022-50058", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50058\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50058\nhttps://lore.kernel.org/linux-cve-announce/2025061848-CVE-2022-50058-212f@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-23T08:36:33.631380+00:00", "updated": "2025-06-23T08:36:33.631432+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}