{"cve":{"cve_id":"CVE-2026-46321","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00129,"epss_percentile":0.02838,"epss_as_of":"2026-06-23","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntun: free page on short-frame rejection in tun_xdp_one()\n\ntun_xdp_one() returns -EINVAL on a frame shorter than ETH_HLEN without\nfreeing the page that vhost_net_build_xdp() allocated for it.\ntun_sendmsg() discards that -EINVAL and still returns total_len, so\nvhost_tx_batch() takes the success path and never frees the page; each\nshort frame in a batch leaks one page-frag chunk.\n\nA local process that can open /dev/net/tun and /dev/vhost-net can hit\nthis path: it attaches a tun/tap device as the vhost-net backend and\nfeeds TX descriptors whose length minus the virtio-net header is below\nETH_HLEN. Each kick leaks the page-frag chunks for that batch, and a\ntight submission loop exhausts host memory and triggers an OOM panic.\nFree the page before returning -EINVAL, matching the XDP-program error\npath in the same function.","published_at":"2026-06-09T12:11:13.872000Z","last_modified_at":null,"cvss_v3_score":7.1,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/0a6f46a9332ad6958992d64d3b3a81a80b2ca940","https://git.kernel.org/stable/c/0e8211fcf9426f5adddf32516ba0f400ceb9544d","https://git.kernel.org/stable/c/e915445942af6dcea628bf66d6241641201a0c41","https://git.kernel.org/stable/c/5b34f9e4fe2f203724a6e893d6df0316b9670057","https://git.kernel.org/stable/c/69863ff2720a0e9871f1a5710f2a33a94217fee0","https://git.kernel.org/stable/c/37a1c268c2c8090bf4dc552d732bd23ba36f8eb0","https://git.kernel.org/stable/c/98c67be9eb9de72465a071949e84a3cdb8fab5a3","https://git.kernel.org/stable/c/f4feb1e20058e407cb00f45aff47f5b7e19a6bbf"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:30:37.146260Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.9.12","version_start_inclusive":true,"version_end":"6.10","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:6.9.12:6.10"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6100e0237204890269e3f934acfc50d35fd6f319","version_start_inclusive":true,"version_end":"0a6f46a9332ad6958992d64d3b3a81a80b2ca940","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:6100e0237204890269e3f934acfc50d35fd6f319:0a6f46a9332ad6958992d64d3b3a81a80b2ca940"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2","version_start_inclusive":true,"version_end":"0e8211fcf9426f5adddf32516ba0f400ceb9544d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2:0e8211fcf9426f5adddf32516ba0f400ceb9544d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146","version_start_inclusive":true,"version_end":"e915445942af6dcea628bf66d6241641201a0c41","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146:e915445942af6dcea628bf66d6241641201a0c41"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"d5ad89b7d01ed4e66fd04734fc63d6e78536692a","version_start_inclusive":true,"version_end":"5b34f9e4fe2f203724a6e893d6df0316b9670057","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:d5ad89b7d01ed4e66fd04734fc63d6e78536692a:5b34f9e4fe2f203724a6e893d6df0316b9670057"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"049584807f1d797fc3078b68035450a9769eb5c3","version_start_inclusive":true,"version_end":"69863ff2720a0e9871f1a5710f2a33a94217fee0","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:049584807f1d797fc3078b68035450a9769eb5c3:69863ff2720a0e9871f1a5710f2a33a94217fee0"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"049584807f1d797fc3078b68035450a9769eb5c3","version_start_inclusive":true,"version_end":"37a1c268c2c8090bf4dc552d732bd23ba36f8eb0","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:049584807f1d797fc3078b68035450a9769eb5c3:37a1c268c2c8090bf4dc552d732bd23ba36f8eb0"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"049584807f1d797fc3078b68035450a9769eb5c3","version_start_inclusive":true,"version_end":"98c67be9eb9de72465a071949e84a3cdb8fab5a3","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:049584807f1d797fc3078b68035450a9769eb5c3:98c67be9eb9de72465a071949e84a3cdb8fab5a3"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"049584807f1d797fc3078b68035450a9769eb5c3","version_start_inclusive":true,"version_end":"f4feb1e20058e407cb00f45aff47f5b7e19a6bbf","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:049584807f1d797fc3078b68035450a9769eb5c3:f4feb1e20058e407cb00f45aff47f5b7e19a6bbf"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"32b0aaba5dbc85816898167d9b5d45a22eae82e9","version_start_inclusive":true,"version_end":"32b0aaba5dbc85816898167d9b5d45a22eae82e9","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:32b0aaba5dbc85816898167d9b5d45a22eae82e9:32b0aaba5dbc85816898167d9b5d45a22eae82e9"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb","version_start_inclusive":true,"version_end":"a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb:a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"8418f55302fa1d2eeb73e16e345167e545c598a5","version_start_inclusive":true,"version_end":"8418f55302fa1d2eeb73e16e345167e545c598a5","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:8418f55302fa1d2eeb73e16e345167e545c598a5:8418f55302fa1d2eeb73e16e345167e545c598a5"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.223","version_start_inclusive":true,"version_end":"5.10.259",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