{"id":"CVE-2021-47548","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()\n\nThe if statement:\n  if (port \u003e= DSAF_GE_NUM)\n        return;\n\nlimits the value of port less than DSAF_GE_NUM (i.e., 8).\nHowever, if the value of port is 6 or 7, an array overflow could occur:\n  port_rst_off = dsaf_dev-\u003emac_cb[port]-\u003eport_rst_off;\n\nbecause the length of dsaf_dev-\u003emac_cb is DSAF_MAX_PORT_NUM (i.e., 6).\n\nTo fix this possible array overflow, we first check port and if it is\ngreater than or equal to DSAF_MAX_PORT_NUM, the function returns.","modified":"2026-03-15T22:43:15.309799Z","published":"2024-05-24T15:15:19.693Z","related":["ALSA-2024:4583","ALSA-2024:5101","ALSA-2024:5102","SUSE-SU-2024:1979-1","SUSE-SU-2024:1983-1","SUSE-SU-2024:2008-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2184-1","SUSE-SU-2024:2190-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627"},{"type":"FIX","url":"https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803"},{"type":"FIX","url":"https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b"},{"type":"FIX","url":"https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d"},{"type":"FIX","url":"https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114"},{"type":"FIX","url":"https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1"},{"type":"FIX","url":"https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.9.292"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.14.257"}]},{"events":[{"introduced":"4.15"},{"fixed":"4.19.220"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.164"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.84"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.15.7"}]},{"events":[{"introduced":"0"},{"last_affected":"5.16-rc1"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47548.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:H/I:H/A:H"}]}