{"cve":{"cve_id":"CVE-2026-52994","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":null,"epss_percentile":null,"epss_as_of":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: fix MSG_ZEROCOPY pinned-pages accounting\n\nvirtio_transport_init_zcopy_skb() uses iter->count as the size argument\nfor msg_zerocopy_realloc(), which in turn passes it to\nmm_account_pinned_pages() for RLIMIT_MEMLOCK accounting. However, this\nfunction is called after virtio_transport_fill_skb() has already consumed\nthe iterator via __zerocopy_sg_from_iter(), so on the last skb, iter->count\nwill be 0, skipping the RLIMIT_MEMLOCK enforcement.\n\nPass pkt_len (the total bytes being sent) as an explicit parameter to\nvirtio_transport_init_zcopy_skb() instead of reading the already-consumed\niter->count.\n\nThis matches TCP and UDP, which both call msg_zerocopy_realloc() with\nthe original message size.","published_at":"2026-06-24T16:29:07.360000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"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/6af1736b5810bc8a4a43a8518530113f5a757dc1","https://git.kernel.org/stable/c/d0117950075f0a9d5944980784c719d8ebcd4bff","https://git.kernel.org/stable/c/1cb36e252211506f51095fe7ced8286cc77b4c80"],"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":"2026-06-28T17:55:22.518073Z","updated_at":"2026-06-28T23:30:49.890169Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"581512a6dc939ef122e49336626ae159f3b8a345","version_start_inclusive":true,"version_end":"6af1736b5810bc8a4a43a8518530113f5a757dc1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:581512a6dc939ef122e49336626ae159f3b8a345:6af1736b5810bc8a4a43a8518530113f5a757dc1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"581512a6dc939ef122e49336626ae159f3b8a345","version_start_inclusive":true,"version_end":"d0117950075f0a9d5944980784c719d8ebcd4bff","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:581512a6dc939ef122e49336626ae159f3b8a345:d0117950075f0a9d5944980784c719d8ebcd4bff"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"581512a6dc939ef122e49336626ae159f3b8a345","version_start_inclusive":true,"version_end":"1cb36e252211506f51095fe7ced8286cc77b4c80","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:581512a6dc939ef122e49336626ae159f3b8a345:1cb36e252211506f51095fe7ced8286cc77b4c80"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.7","version_start_inclusive":true,"version_end":"6.7","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.7:6.7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.7","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.33","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.33:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.10","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.10:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/6af1736b5810bc8a4a43a8518530113f5a757dc1","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/d0117950075f0a9d5944980784c719d8ebcd4bff","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1cb36e252211506f51095fe7ced8286cc77b4c80","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:29:07.360000Z","label":"CVE published","source":null}]}