{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-50271", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-15T13:58:00.975Z", "datePublished": "2025-09-15T14:21:07.563Z", "dateUpdated": "2025-09-15T14:21:07.563Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-15T14:21:07.563Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost/vsock: Use kvmalloc/kvfree for larger packets.\n\nWhen copying a large file over sftp over vsock, data size is usually 32kB,\nand kmalloc seems to fail to try to allocate 32 32kB regions.\n\n vhost-5837: page allocation failure: order:4, mode:0x24040c0\n Call Trace:\n [<ffffffffb6a0df64>] dump_stack+0x97/0xdb\n [<ffffffffb68d6aed>] warn_alloc_failed+0x10f/0x138\n [<ffffffffb68d868a>] ? __alloc_pages_direct_compact+0x38/0xc8\n [<ffffffffb664619f>] __alloc_pages_nodemask+0x84c/0x90d\n [<ffffffffb6646e56>] alloc_kmem_pages+0x17/0x19\n [<ffffffffb6653a26>] kmalloc_order_trace+0x2b/0xdb\n [<ffffffffb66682f3>] __kmalloc+0x177/0x1f7\n [<ffffffffb66e0d94>] ? copy_from_iter+0x8d/0x31d\n [<ffffffffc0689ab7>] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]\n [<ffffffffc06828d9>] vhost_worker+0xf7/0x157 [vhost]\n [<ffffffffb683ddce>] kthread+0xfd/0x105\n [<ffffffffc06827e2>] ? vhost_dev_set_owner+0x22e/0x22e [vhost]\n [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3\n [<ffffffffb6eb332e>] ret_from_fork+0x4e/0x80\n [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3\n\nWork around by doing kvmalloc instead."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/vhost/vsock.c", "net/vmw_vsock/virtio_transport_common.c"], "versions": [{"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "0d720c3f0a03e97867deab7e480ba3d3e19837ba", "status": "affected", "versionType": "git"}, {"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "7aac8c63f604e6a6a46560c0f0188cd0332cf320", "status": "affected", "versionType": "git"}, {"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "e6d0152c95108651f1880c1ddfab47cb9e3e62d0", "status": "affected", "versionType": "git"}, {"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "b4a5905fd2ef841cd61e969ea692c213c2e5c1f7", "status": "affected", "versionType": "git"}, {"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "e28a4e7f0296824c61a81e7fd54ab48bad3e75ad", "status": "affected", "versionType": "git"}, {"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "a99fc6d818161d6f1ff3307de8bf5237f6cc34d8", "status": "affected", "versionType": "git"}, {"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "36c9f340c60413e28f980c0224c4e9d35851526b", "status": "affected", "versionType": "git"}, {"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8", "lessThan": "0e3f72931fc47bb81686020cc643cde5d9cd0bb8", "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/vhost/vsock.c", "net/vmw_vsock/virtio_transport_common.c"], "versions": [{"version": "4.8", "status": "affected"}, {"version": "0", "lessThan": "4.8", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.296", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.262", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.220", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.150", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.75", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.17", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.3", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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": "4.8", "versionEndExcluding": "4.14.296"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "4.19.262"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "5.4.220"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "5.10.150"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "5.15.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "5.19.17"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.0.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0d720c3f0a03e97867deab7e480ba3d3e19837ba"}, {"url": "https://git.kernel.org/stable/c/7aac8c63f604e6a6a46560c0f0188cd0332cf320"}, {"url": "https://git.kernel.org/stable/c/e6d0152c95108651f1880c1ddfab47cb9e3e62d0"}, {"url": "https://git.kernel.org/stable/c/b4a5905fd2ef841cd61e969ea692c213c2e5c1f7"}, {"url": "https://git.kernel.org/stable/c/e28a4e7f0296824c61a81e7fd54ab48bad3e75ad"}, {"url": "https://git.kernel.org/stable/c/a99fc6d818161d6f1ff3307de8bf5237f6cc34d8"}, {"url": "https://git.kernel.org/stable/c/36c9f340c60413e28f980c0224c4e9d35851526b"}, {"url": "https://git.kernel.org/stable/c/0e3f72931fc47bb81686020cc643cde5d9cd0bb8"}], "title": "vhost/vsock: Use kvmalloc/kvfree for larger packets.", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost/vsock: Use kvmalloc/kvfree for larger packets.\n\nWhen copying a large file over sftp over vsock, data size is usually 32kB,\nand kmalloc seems to fail to try to allocate 32 32kB regions.\n\n vhost-5837: page allocation failure: order:4, mode:0x24040c0\n Call Trace:\n [<ffffffffb6a0df64>] dump_stack+0x97/0xdb\n [<ffffffffb68d6aed>] warn_alloc_failed+0x10f/0x138\n [<ffffffffb68d868a>] ? __alloc_pages_direct_compact+0x38/0xc8\n [<ffffffffb664619f>] __alloc_pages_nodemask+0x84c/0x90d\n [<ffffffffb6646e56>] alloc_kmem_pages+0x17/0x19\n [<ffffffffb6653a26>] kmalloc_order_trace+0x2b/0xdb\n [<ffffffffb66682f3>] __kmalloc+0x177/0x1f7\n [<ffffffffb66e0d94>] ? copy_from_iter+0x8d/0x31d\n [<ffffffffc0689ab7>] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]\n [<ffffffffc06828d9>] vhost_worker+0xf7/0x157 [vhost]\n [<ffffffffb683ddce>] kthread+0xfd/0x105\n [<ffffffffc06827e2>] ? vhost_dev_set_owner+0x22e/0x22e [vhost]\n [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3\n [<ffffffffb6eb332e>] ret_from_fork+0x4e/0x80\n [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3\n\nWork around by doing kvmalloc instead."}], "id": "CVE-2022-50271", "lastModified": "2025-09-15T15:22:27.090", "metrics": {}, "published": "2025-09-15T15:15:37.930", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0d720c3f0a03e97867deab7e480ba3d3e19837ba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e3f72931fc47bb81686020cc643cde5d9cd0bb8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/36c9f340c60413e28f980c0224c4e9d35851526b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7aac8c63f604e6a6a46560c0f0188cd0332cf320"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a99fc6d818161d6f1ff3307de8bf5237f6cc34d8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b4a5905fd2ef841cd61e969ea692c213c2e5c1f7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e28a4e7f0296824c61a81e7fd54ab48bad3e75ad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e6d0152c95108651f1880c1ddfab47cb9e3e62d0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: vhost/vsock: Use kvmalloc/kvfree for larger packets", "id": "2395311", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395311"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50271", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50271\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50271\nhttps://lore.kernel.org/linux-cve-announce/2025091505-CVE-2022-50271-2175@gregkh/T"], "threat_severity": "Low"}