{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-50271 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-50271 is a medium-severity denial of service vulnerability in Linux kernel, published on 15 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-50271 and fix it if it is affected.\n\nWhat it is: CVE-2022-50271 is a medium-severity denial of service vulnerability in Linux kernel, published on 15 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-50271 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-50271/ (Markdown: https://insights.sbomify.com/CVE-2022-50271/index.md)","id":"CVE-2022-50271","markdown":"https://insights.sbomify.com/CVE-2022-50271/index.md","name":"CVE-2022-50271","record":{"aliases":["DEBIAN-CVE-2022-50271","GHSA-7qgr-rfmm-pgc2","UBUNTU-CVE-2022-50271"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A flaw in the Linux kernel vhost/vsock module causes memory allocation failures when handling large packets, leading to a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"vhost/vsock: Use kvmalloc/kvfree for larger packets.","id":"CVE-2022-50271","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2022"},"n_packages":0,"n_references":8,"next":{"headline":"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()","id":"CVE-2022-50272"},"packages":[],"prev":{"headline":"f2fs: fix the assign logic of iocb","id":"CVE-2022-50270"},"products":["Linux"],"published":"2025-09-15","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A flaw in the Linux kernel vhost/vsock module causes memory allocation failures when handling large packets, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2022-50271/"}