{
  "cveId": "CVE-2026-52994",
  "url": "https://patchblox.com/security/cve/CVE-2026-52994",
  "summary": "CVE-2026-52994 is fixed in 35 products on 1 platform, first by ALAS2023-2026-1866, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  vsock/virtio: fix MSG_ZEROCOPY pinned-pages acco...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  vsock/virtio: fix MSG_ZEROCOPY pinned-pages accounting  virtio_transport_init_zcopy_skb() uses iter-\u003Ecount as the size argument for msg_zerocopy_realloc(), which in turn passes it to mm_account_pinned_pages() for RLIMIT_MEMLOCK accounting. However, this function is called after virtio_transport_fill_skb() has already consumed the iterator via __zerocopy_sg_from_iter(), so on the last skb, iter-\u003Ecount will be 0, skipping the RLIMIT_MEMLOCK enforcement.  Pass pkt_len (the total bytes being sent) as an explicit parameter to virtio_transport_init_zcopy_skb() instead of reading the already-consumed iter-\u003Ecount.  This matches TCP and UDP, which both call msg_zerocopy_realloc() with the original message size.",
  "published": "2026-06-22T09:00:00Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00126,
  "epssPercentile": 0.02324,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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}