{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "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": "2026-05-11T19:16:06.028Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:16:06.028Z"
            },
            "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"
            }
        }
    }
}