{"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"}}}}