{"id":"CVE-2026-53132","revision":"c95677d705f649acadab27367f62e79e","records":[{"revision":"c95677d705f649acadab27367f62e79e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53132","aliases":[],"title":"vsock/virtio: fix potential unbounded skb queue","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: fix potential unbounded skb queue\n\nvirtio_transport_inc_rx_pkt() checks vvs->rx_bytes + len > vvs->buf_alloc.\n\nvirtio_transport_recv_enqueue() skips coalescing for packets\nwith VIRTIO_VSOCK_SEQ_EOM.\n\nIf fed with packets with len == 0 and VIRTIO_VSOCK_SEQ_EOM,\na very large number of packets can be queued\nbecause vvs->rx_bytes stays at 0.\n\nFix this by estimating the skb metadata size:\n\n\t(Number of skbs in the queue) * SKB_TRUESIZE(0)","state":0,"publishedAt":"2026-06-25T08:38:21.575+00:00","modifiedAt":"2026-10-19T19:57:25.21+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/vmw_vsock/virtio_transport_common.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"077706165717686a2a6a71405fef036cd5b37ae0\",\n                            \"lessThan\": \"1eca304f97a34ed5e921e1f0e06c8b241f25bf12\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"077706165717686a2a6a71405fef036cd5b37ae0\",\n                            \"lessThan\": \"9bdc637fde66b63d6cad0caacd034888bb7bf5f5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"077706165717686a2a6a71405fef036cd5b37ae0\",\n                            \"lessThan\": \"100d5b2ffdc6468b9e48532641f29e83efdcb63c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"077706165717686a2a6a71405fef036cd5b37ae0\",\n                            \"lessThan\": \"059b7dbd20a6f0c539a45ddff1573cb8946685b5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5852a2b573f7a3a29df46296e56aa3491e589cdf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.1.63\",\n                            \"lessThan\": \"6.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/vmw_vsock/virtio_transport_common.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.94\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.36\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.13\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/1eca304f97a34ed5e921e1f0e06c8b241f25bf12","https://git.kernel.org/stable/c/9bdc637fde66b63d6cad0caacd034888bb7bf5f5","https://git.kernel.org/stable/c/100d5b2ffdc6468b9e48532641f29e83efdcb63c","https://git.kernel.org/stable/c/059b7dbd20a6f0c539a45ddff1573cb8946685b5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53132","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53132","identifiers":["CVE-2026-53132"]},"retained":false,"historicalAffected":[]}],"coverage":[]}