{"id":"CVE-2026-98272","revision":"41f438fa7ac24a2ea599720fc5d3477f","records":[{"revision":"41f438fa7ac24a2ea599720fc5d3477f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98272","aliases":[],"title":"net: mvpp2: prevent buffer overflow in page_pool allocation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mvpp2: prevent buffer overflow in page_pool allocation\n\nThe per‑processor buffering scheme is supported only if the\nnumber of pools (nrxqs\u202F*\u202F2) does not exceed MVPP2_BM_MAX_POOLS (8).\nThis is already checked in mvpp2_probe() during the initial\nactivation of percpu_pools.\n\nHowever, mvpp2_change_mtu() may later call\nmvpp2_bm_switch_buffers(priv, true) without this check, which can\nlead to an out-of-bounds access in the priv->page_pool array in\nmvpp2_bm_init(). The array is sized to hold MVPP2_PORT_MAX_RXQ\nentries, and mvpp2_get_nrxqs() may return exactly that value. The\nper-CPU scheme then doubles it to nrxqs * 2, exceeding the array\nbounds.\n\nCheck that the hardware version is MVPP22 or newer and that the\nnumber of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS\nbefore switching to per-CPU mode.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","state":0,"publishedAt":"2026-10-06T08:45:33.974+00:00","modifiedAt":"2026-10-19T09:16:44.017+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                        \"drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"dfd46b5584a5881b131008767950e1ab82713c8c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"e7f30dcfa6c64033bf9137362517bd248e5be384\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"f0e7d62c1eb984dd204095118973c59604144cd8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"1734c3fc0066e228ce1c11e434b7c2527f0a949a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7d04b0b13b1175ce0c4bdc77f1278c1f120f874f\",\n                            \"lessThan\": \"14cb1e7702e5cb3c58888f6aed498381a73927d2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\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                        \"drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.4\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c","https://git.kernel.org/stable/c/4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545","https://git.kernel.org/stable/c/dfd46b5584a5881b131008767950e1ab82713c8c","https://git.kernel.org/stable/c/6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0","https://git.kernel.org/stable/c/e7f30dcfa6c64033bf9137362517bd248e5be384","https://git.kernel.org/stable/c/f0e7d62c1eb984dd204095118973c59604144cd8","https://git.kernel.org/stable/c/1734c3fc0066e228ce1c11e434b7c2527f0a949a","https://git.kernel.org/stable/c/14cb1e7702e5cb3c58888f6aed498381a73927d2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98272","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98272","identifiers":["CVE-2026-98272"]},"retained":false,"historicalAffected":[]}],"coverage":[]}