{"id":"CVE-2026-64176","revision":"bdca31bbfd3c4438af309124d3854375","records":[{"revision":"bdca31bbfd3c4438af309124d3854375","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64176","aliases":[],"title":"wifi: iwlwifi: mvm: fix driver-set TX rates on old devices","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix driver-set TX rates on old devices\n\nOn old devices such as 7265D, rates are still encoded in version 1\nformat, which doesn't use the CCK/OFDM rate index (0-3/0-7) but\nrather their PLCP value (e.g. 10 for 1 Mbps CCK rate.)\n\nWhile introducing v3 rates, I changed the driver from internally\nhandling v1 rates and converting to v2, to internally handling v3\nand converting to v1 or v2 according to the firmware. I accordingly\nchanged the code in iwl_mvm_mac80211_idx_to_hwrate() to no longer\nhave different values for different APIs. This was correct.\n\nHowever, I later reverted this part of the change, because it was\nreported that I had broken beacon rates, causing a FW assert/crash.\nThis caused TX_CMD rates to be set incorrectly, potentially causing\na warning when reported back from the device as having been used.\n\nFix this (hopefully correctly now) by handling beacon rates in the\nTX_CMD that's embedded in the beacon template command separately.\nRestore iwl_mvm_mac80211_idx_to_hwrate() to return only the rate\nindex, not PLCP value, fixing the real TX_CMD.","state":0,"publishedAt":"2026-07-19T15:41:00.83+00:00","modifiedAt":"2026-10-19T20:28:14.591+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/wireless/intel/iwlwifi/mvm/mac-ctxt.c\",\n                        \"drivers/net/wireless/intel/iwlwifi/mvm/utils.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3592c0083fb29cca13cd9978b8844d58b4eff548\",\n                            \"lessThan\": \"6fe92651b44fd3cfc8dcfdaad0e82885c384dada\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3592c0083fb29cca13cd9978b8844d58b4eff548\",\n                            \"lessThan\": \"6b58a79f2cd98156856eb49e8b55db5facdd7e6d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3592c0083fb29cca13cd9978b8844d58b4eff548\",\n                            \"lessThan\": \"fb84b5cbcaab3ca0f4e961d92a40ed7f3aac483b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c6c14c2b08e9c4c82e1ec39ef3e8b9ec845ac7fd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.17.9\",\n                            \"lessThan\": \"6.18\",\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                        \"drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c\",\n                        \"drivers/net/wireless/intel/iwlwifi/mvm/utils.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.34\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.11\",\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:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/6fe92651b44fd3cfc8dcfdaad0e82885c384dada","https://git.kernel.org/stable/c/6b58a79f2cd98156856eb49e8b55db5facdd7e6d","https://git.kernel.org/stable/c/fb84b5cbcaab3ca0f4e961d92a40ed7f3aac483b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64176","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64176","identifiers":["CVE-2026-64176"]},"retained":false,"historicalAffected":[]}],"coverage":[]}