{"id":"CVE-2026-23453","summary":"net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode\n\nPage recycling was removed from the XDP_DROP path in emac_run_xdp() to\navoid conflicts with AF_XDP zero-copy mode, which uses xsk_buff_free()\ninstead.\n\nHowever, this causes a memory leak when running XDP programs that drop\npackets in non-zero-copy mode (standard page pool mode). The pages are\nnever returned to the page pool, leading to OOM conditions.\n\nFix this by handling cleanup in the caller, emac_rx_packet().\nWhen emac_run_xdp() returns ICSSG_XDP_CONSUMED for XDP_DROP, the\ncaller now recycles the page back to the page pool. The zero-copy\npath, emac_rx_packet_zc() already handles cleanup correctly with\nxsk_buff_free().","modified":"2026-07-08T07:43:47.702788678Z","published":"2026-04-03T15:15:35.549Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23453.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/719d3e71691db7c4f1658ba5a6d1472928121594"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d16d57dedcb69c1a1257e0638f8698ce1f0ccbe5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23453.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23453"},{"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":"7a64bb388df3cf091afdd047c701039a13acd3b4"},{"fixed":"d16d57dedcb69c1a1257e0638f8698ce1f0ccbe5"},{"fixed":"719d3e71691db7c4f1658ba5a6d1472928121594"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23453.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23453.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}