{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38413", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.013Z", "datePublished": "2025-07-25T13:20:17.394Z", "dateUpdated": "2025-07-28T04:21:26.450Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-28T04:21:26.450Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: xsk: rx: fix the frame's length check\n\nWhen calling buf_to_xdp, the len argument is the frame data's length\nwithout virtio header's length (vi->hdr_len). We check that len with\n\n\txsk_pool_get_rx_frame_size() + vi->hdr_len\n\nto ensure the provided len does not larger than the allocated chunk\nsize. The additional vi->hdr_len is because in virtnet_add_recvbuf_xsk,\nwe use part of XDP_PACKET_HEADROOM for virtio header and ask the vhost\nto start placing data from\n\n\thard_start + XDP_PACKET_HEADROOM - vi->hdr_len\nnot\n\thard_start + XDP_PACKET_HEADROOM\n\nBut the first buffer has virtio_header, so the maximum frame's length in\nthe first buffer can only be\n\n\txsk_pool_get_rx_frame_size()\nnot\n\txsk_pool_get_rx_frame_size() + vi->hdr_len\n\nlike in the current check.\n\nThis commit adds an additional argument to buf_to_xdp differentiate\nbetween the first buffer and other ones to correctly calculate the maximum\nframe's length."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/virtio_net.c"], "versions": [{"version": "a4e7ba7027012f009f22a68bcfde670f9298d3a4", "lessThan": "892f6ed9a4a38bb3360fdff091b9241cfa105b61", "status": "affected", "versionType": "git"}, {"version": "a4e7ba7027012f009f22a68bcfde670f9298d3a4", "lessThan": "6013bb6bc24c2cac3f45b37a15b71b232a5b00ff", "status": "affected", "versionType": "git"}, {"version": "a4e7ba7027012f009f22a68bcfde670f9298d3a4", "lessThan": "5177373c31318c3c6a190383bfd232e6cf565c36", "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/net/virtio_net.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.37", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.6", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16", "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": "6.11", "versionEndExcluding": "6.12.37"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.15.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/892f6ed9a4a38bb3360fdff091b9241cfa105b61"}, {"url": "https://git.kernel.org/stable/c/6013bb6bc24c2cac3f45b37a15b71b232a5b00ff"}, {"url": "https://git.kernel.org/stable/c/5177373c31318c3c6a190383bfd232e6cf565c36"}], "title": "virtio-net: xsk: rx: fix the frame's length check", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: xsk: rx: fix the frame's length check\n\nWhen calling buf_to_xdp, the len argument is the frame data's length\nwithout virtio header's length (vi->hdr_len). We check that len with\n\n\txsk_pool_get_rx_frame_size() + vi->hdr_len\n\nto ensure the provided len does not larger than the allocated chunk\nsize. The additional vi->hdr_len is because in virtnet_add_recvbuf_xsk,\nwe use part of XDP_PACKET_HEADROOM for virtio header and ask the vhost\nto start placing data from\n\n\thard_start + XDP_PACKET_HEADROOM - vi->hdr_len\nnot\n\thard_start + XDP_PACKET_HEADROOM\n\nBut the first buffer has virtio_header, so the maximum frame's length in\nthe first buffer can only be\n\n\txsk_pool_get_rx_frame_size()\nnot\n\txsk_pool_get_rx_frame_size() + vi->hdr_len\n\nlike in the current check.\n\nThis commit adds an additional argument to buf_to_xdp differentiate\nbetween the first buffer and other ones to correctly calculate the maximum\nframe's length."}], "id": "CVE-2025-38413", "lastModified": "2025-07-25T15:29:19.837", "metrics": {}, "published": "2025-07-25T14:15:33.017", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5177373c31318c3c6a190383bfd232e6cf565c36"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6013bb6bc24c2cac3f45b37a15b71b232a5b00ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/892f6ed9a4a38bb3360fdff091b9241cfa105b61"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: virtio-net: xsk: rx: fix the frame's length check", "id": "2383384", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383384"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nvirtio-net: xsk: rx: fix the frame's length check\nWhen calling buf_to_xdp, the len argument is the frame data's length\nwithout virtio header's length (vi->hdr_len). We check that len with\nxsk_pool_get_rx_frame_size() + vi->hdr_len\nto ensure the provided len does not larger than the allocated chunk\nsize. The additional vi->hdr_len is because in virtnet_add_recvbuf_xsk,\nwe use part of XDP_PACKET_HEADROOM for virtio header and ask the vhost\nto start placing data from\nhard_start + XDP_PACKET_HEADROOM - vi->hdr_len\nnot\nhard_start + XDP_PACKET_HEADROOM\nBut the first buffer has virtio_header, so the maximum frame's length in\nthe first buffer can only be\nxsk_pool_get_rx_frame_size()\nnot\nxsk_pool_get_rx_frame_size() + vi->hdr_len\nlike in the current check.\nThis commit adds an additional argument to buf_to_xdp differentiate\nbetween the first buffer and other ones to correctly calculate the maximum\nframe's length."], "name": "CVE-2025-38413", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38413\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38413\nhttps://lore.kernel.org/linux-cve-announce/2025072521-CVE-2025-38413-d64f@gregkh/T"], "threat_severity": "Moderate"}