CVE-2022-50271 (GCVE-0-2022-50271)
Vulnerability from cvelistv5
Published
2025-09-15 14:21
Modified
2025-09-15 14:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vhost/vsock: Use kvmalloc/kvfree for larger packets.
When copying a large file over sftp over vsock, data size is usually 32kB,
and kmalloc seems to fail to try to allocate 32 32kB regions.
vhost-5837: page allocation failure: order:4, mode:0x24040c0
Call Trace:
[<ffffffffb6a0df64>] dump_stack+0x97/0xdb
[<ffffffffb68d6aed>] warn_alloc_failed+0x10f/0x138
[<ffffffffb68d868a>] ? __alloc_pages_direct_compact+0x38/0xc8
[<ffffffffb664619f>] __alloc_pages_nodemask+0x84c/0x90d
[<ffffffffb6646e56>] alloc_kmem_pages+0x17/0x19
[<ffffffffb6653a26>] kmalloc_order_trace+0x2b/0xdb
[<ffffffffb66682f3>] __kmalloc+0x177/0x1f7
[<ffffffffb66e0d94>] ? copy_from_iter+0x8d/0x31d
[<ffffffffc0689ab7>] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]
[<ffffffffc06828d9>] vhost_worker+0xf7/0x157 [vhost]
[<ffffffffb683ddce>] kthread+0xfd/0x105
[<ffffffffc06827e2>] ? vhost_dev_set_owner+0x22e/0x22e [vhost]
[<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3
[<ffffffffb6eb332e>] ret_from_fork+0x4e/0x80
[<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3
Work around by doing kvmalloc instead.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 Version: 433fc58e6bf2c8bd97e57153ed28e64fd78207b8 |
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{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/vhost/vsock.c",
"net/vmw_vsock/virtio_transport_common.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "0d720c3f0a03e97867deab7e480ba3d3e19837ba",
"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
},
{
"lessThan": "7aac8c63f604e6a6a46560c0f0188cd0332cf320",
"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
},
{
"lessThan": "e6d0152c95108651f1880c1ddfab47cb9e3e62d0",
"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
},
{
"lessThan": "b4a5905fd2ef841cd61e969ea692c213c2e5c1f7",
"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
},
{
"lessThan": "e28a4e7f0296824c61a81e7fd54ab48bad3e75ad",
"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
},
{
"lessThan": "a99fc6d818161d6f1ff3307de8bf5237f6cc34d8",
"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
},
{
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"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
},
{
"lessThan": "0e3f72931fc47bb81686020cc643cde5d9cd0bb8",
"status": "affected",
"version": "433fc58e6bf2c8bd97e57153ed28e64fd78207b8",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/vhost/vsock.c",
"net/vmw_vsock/virtio_transport_common.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.296",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.262",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.220",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.150",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.75",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.19.*",
"status": "unaffected",
"version": "5.19.17",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.14.296",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.262",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.220",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.150",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.75",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.19.17",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.3",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1",
"versionStartIncluding": "4.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"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 [\u003cffffffffb6a0df64\u003e] dump_stack+0x97/0xdb\n [\u003cffffffffb68d6aed\u003e] warn_alloc_failed+0x10f/0x138\n [\u003cffffffffb68d868a\u003e] ? __alloc_pages_direct_compact+0x38/0xc8\n [\u003cffffffffb664619f\u003e] __alloc_pages_nodemask+0x84c/0x90d\n [\u003cffffffffb6646e56\u003e] alloc_kmem_pages+0x17/0x19\n [\u003cffffffffb6653a26\u003e] kmalloc_order_trace+0x2b/0xdb\n [\u003cffffffffb66682f3\u003e] __kmalloc+0x177/0x1f7\n [\u003cffffffffb66e0d94\u003e] ? copy_from_iter+0x8d/0x31d\n [\u003cffffffffc0689ab7\u003e] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]\n [\u003cffffffffc06828d9\u003e] vhost_worker+0xf7/0x157 [vhost]\n [\u003cffffffffb683ddce\u003e] kthread+0xfd/0x105\n [\u003cffffffffc06827e2\u003e] ? vhost_dev_set_owner+0x22e/0x22e [vhost]\n [\u003cffffffffb683dcd1\u003e] ? flush_kthread_worker+0xf3/0xf3\n [\u003cffffffffb6eb332e\u003e] ret_from_fork+0x4e/0x80\n [\u003cffffffffb683dcd1\u003e] ? flush_kthread_worker+0xf3/0xf3\n\nWork around by doing kvmalloc instead."
}
],
"providerMetadata": {
"dateUpdated": "2025-09-15T14:21:07.563Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"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"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-50271",
"datePublished": "2025-09-15T14:21:07.563Z",
"dateReserved": "2025-09-15T13:58:00.975Z",
"dateUpdated": "2025-09-15T14:21:07.563Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2022-50271\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-15T15:15:37.930\",\"lastModified\":\"2025-09-15T15:22:27.090\",\"vulnStatus\":\"Awaiting Analysis\",\"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 [\u003cffffffffb6a0df64\u003e] dump_stack+0x97/0xdb\\n [\u003cffffffffb68d6aed\u003e] warn_alloc_failed+0x10f/0x138\\n [\u003cffffffffb68d868a\u003e] ? __alloc_pages_direct_compact+0x38/0xc8\\n [\u003cffffffffb664619f\u003e] __alloc_pages_nodemask+0x84c/0x90d\\n [\u003cffffffffb6646e56\u003e] alloc_kmem_pages+0x17/0x19\\n [\u003cffffffffb6653a26\u003e] kmalloc_order_trace+0x2b/0xdb\\n [\u003cffffffffb66682f3\u003e] __kmalloc+0x177/0x1f7\\n [\u003cffffffffb66e0d94\u003e] ? copy_from_iter+0x8d/0x31d\\n [\u003cffffffffc0689ab7\u003e] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]\\n [\u003cffffffffc06828d9\u003e] vhost_worker+0xf7/0x157 [vhost]\\n [\u003cffffffffb683ddce\u003e] kthread+0xfd/0x105\\n [\u003cffffffffc06827e2\u003e] ? vhost_dev_set_owner+0x22e/0x22e [vhost]\\n [\u003cffffffffb683dcd1\u003e] ? flush_kthread_worker+0xf3/0xf3\\n [\u003cffffffffb6eb332e\u003e] ret_from_fork+0x4e/0x80\\n [\u003cffffffffb683dcd1\u003e] ? flush_kthread_worker+0xf3/0xf3\\n\\nWork around by doing kvmalloc instead.\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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