{"id":"CVE-2026-31646","summary":"net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()\n\npage_pool_create() can return an ERR_PTR on failure. The return value\nis used unconditionally in the loop that follows, passing the error\npointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(),\nwhich dereferences it, causing a kernel oops.\n\nAdd an IS_ERR check after page_pool_create() to return early on failure.","modified":"2026-05-18T05:57:41.860096481Z","published":"2026-04-24T14:44:59.874Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31646.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/305832c53551cfbe6e5b81ca7ee765e60f4fe8e9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3fd0da4fd8851a7e62d009b7db6c4a05b092bc19"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7caf90d9ab97951a58d1de85ab7e7d7cca7a4513"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b5dcb41ba891b55157006cac79825c78a32b409e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e63265f188ea39dcf5f546770650027528f3bd0f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31646.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31646"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"11871aba19748b3387e83a2db6360aa7119e9a1a"},{"fixed":"e63265f188ea39dcf5f546770650027528f3bd0f"},{"fixed":"305832c53551cfbe6e5b81ca7ee765e60f4fe8e9"},{"fixed":"b5dcb41ba891b55157006cac79825c78a32b409e"},{"fixed":"7caf90d9ab97951a58d1de85ab7e7d7cca7a4513"},{"fixed":"3fd0da4fd8851a7e62d009b7db6c4a05b092bc19"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31646.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.135"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.82"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.23"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31646.json"}}],"schema_version":"1.7.5"}