{"id":"CVE-2022-0646","aliases":["BELL-CVE-2022-0646","EUVD-2022-15740","GHSA-c3x8-gg69-x2jw","UBUNTU-CVE-2022-0646"],"status":"published","title":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP)...","description":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00356,"percentile":0.29534,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416","CWE-459"],"published":"2022-02-18T17:50:36Z","modified":"2026-06-17T04:20:59Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-hwe-edge","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.0-28.30~16.04.1","4.8.0-30.32~16.04.1","4.8.0-32.34~16.04.1","4.8.0-34.36~16.04.1","4.10.0-14.16~16.04.1","4.10.0-19.21~16.04.1","4.10.0-20.22~16.04.1","4.10.0-21.23~16.04.1","4.10.0-22.24~16.04.1","4.10.0-24.28~16.04.1","4.10.0-26.30~16.04.1","4.11.0-13.19~16.04.1","4.11.0-14.20~16.04.1","4.13.0-16.19~16.04.3","4.13.0-17.20~16.04.1","4.13.0-19.22~16.04.1","4.13.0-21.24~16.04.1","4.13.0-25.29~16.04.2","4.15.0-13.14~16.04.1","4.15.0-15.16~16.04.1","4.15.0-20.21~16.04.1","4.15.0-22.24~16.04.1","4.15.0-23.25~16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-aws-5.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0-1021.24~18.04.1","5.0.0-1022.25~18.04.1","5.0.0-1023.26~18.04.1","5.0.0-1024.27~18.04.1","5.0.0-1025.28","5.0.0-1027.30"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-aws-5.3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1016.17~18.04.1","5.3.0-1017.18~18.04.1","5.3.0-1019.21~18.04.1","5.3.0-1023.25~18.04.1","5.3.0-1028.30~18.04.1","5.3.0-1030.32~18.04.1","5.3.0-1032.34~18.04.2","5.3.0-1033.35","5.3.0-1034.36","5.3.0-1035.37"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-azure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.15.0-1002.2","4.15.0-1003.3","4.15.0-1004.4","4.15.0-1008.8","4.15.0-1009.9","4.15.0-1012.12","4.15.0-1013.13","4.15.0-1014.14","4.15.0-1018.18","4.15.0-1019.19","4.15.0-1021.21","4.15.0-1022.23","4.15.0-1023.24","4.15.0-1025.26","4.15.0-1028.29","4.15.0-1030.31","4.15.0-1031.32","4.15.0-1032.33","4.15.0-1035.36","4.15.0-1036.38","4.15.0-1037.39","4.18.0-1011.11~18.04.1","4.18.0-1013.13~18.04.1","4.18.0-1014.14~18.04.1","4.18.0-1018.18~18.04.1","4.18.0-1019.19~18.04.1","4.18.0-1020.20~18.04.1","4.18.0-1023.24~18.04.1","4.18.0-1024.25~18.04.1","4.18.0-1025.27~18.04.1","5.0.0-1014.14~18.04.1","5.0.0-1016.17~18.04.1","5.0.0-1018.19~18.04.1","5.0.0-1020.21~18.04.1","5.0.0-1022.23~18.04.1","5.0.0-1023.24~18.04.1","5.0.0-1025.27~18.04.1","5.0.0-1027.29~18.04.1","5.0.0-1028.30~18.04.1","5.0.0-1029.31~18.04.1","5.0.0-1031.33","5.0.0-1032.34","5.0.0-1035.37","5.0.0-1036.38"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-azure-5.3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1007.8~18.04.1","5.3.0-1008.9~18.04.1","5.3.0-1009.10~18.04.1","5.3.0-1010.11~18.04.1","5.3.0-1012.13~18.04.1","5.3.0-1013.14~18.04.1","5.3.0-1016.17~18.04.1","5.3.0-1018.19~18.04.1","5.3.0-1019.20~18.04.1","5.3.0-1020.21~18.04.1","5.3.0-1022.23~18.04.1","5.3.0-1028.29~18.04.1","5.3.0-1031.32~18.04.1","5.3.0-1032.33~18.04.1","5.3.0-1034.35~18.04.1","5.3.0-1035.36"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-azure-edge","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.18.0-1006.6~18.04.1","4.18.0-1007.7~18.04.1","4.18.0-1008.8~18.04.1","5.0.0-1012.12~18.04.2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-gcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.15.0-1001.1","4.15.0-1003.3","4.15.0-1005.5","4.15.0-1006.6","4.15.0-1008.8","4.15.0-1009.9","4.15.0-1010.10","4.15.0-1014.14","4.15.0-1015.15","4.15.0-1017.18","4.15.0-1018.19","4.15.0-1019.20","4.15.0-1021.22","4.15.0-1023.24","4.15.0-1024.25","4.15.0-1025.26","4.15.0-1026.27","4.15.0-1027.28","4.15.0-1028.29","4.15.0-1029.31","4.15.0-1030.32","4.15.0-1032.34","4.15.0-1033.35","4.15.0-1034.36","4.15.0-1036.38","4.15.0-1037.39","4.15.0-1040.42","4.15.0-1042.45","4.15.0-1044.70","5.0.0-1020.20~18.04.1","5.0.0-1021.21~18.04.1","5.0.0-1025.26~18.04.1","5.0.0-1026.27~18.04.1","5.0.0-1028.29~18.04.1","5.0.0-1029.30~18.04.1","5.0.0-1031.32","5.0.0-1033.34","5.0.0-1034.35"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-gcp-5.3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1008.9~18.04.1","5.3.0-1009.10~18.04.1","5.3.0-1010.11~18.04.1","5.3.0-1012.13~18.04.1","5.3.0-1014.15~18.04.1","5.3.0-1016.17~18.04.1","5.3.0-1017.18~18.04.1","5.3.0-1018.19~18.04.1","5.3.0-1020.22~18.04.1","5.3.0-1026.28~18.04.1","5.3.0-1029.31~18.04.1","5.3.0-1030.32~18.04.1","5.3.0-1032.34~18.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-gke-4.15","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.15.0-1030.32","4.15.0-1032.34","4.15.0-1033.35","4.15.0-1034.36","4.15.0-1036.38","4.15.0-1037.39","4.15.0-1040.42","4.15.0-1041.43","4.15.0-1042.44","4.15.0-1044.46","4.15.0-1045.48","4.15.0-1046.49","4.15.0-1048.51","4.15.0-1049.52","4.15.0-1050.53","4.15.0-1052.55","4.15.0-1055.58","4.15.0-1057.60","4.15.0-1058.61","4.15.0-1059.62","4.15.0-1063.66","4.15.0-1064.67","4.15.0-1066.69","4.15.0-1067.70","4.15.0-1069.72","4.15.0-1070.73","4.15.0-1072.76","4.15.0-1073.78","4.15.0-1074.79","4.15.0-1076.81","4.15.0-1077.82","4.15.0-1078.83","4.15.0-1079.84"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-hwe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.18.0-13.14~18.04.1","4.18.0-14.15~18.04.1","4.18.0-15.16~18.04.1","4.18.0-16.17~18.04.1","4.18.0-17.18~18.04.1","4.18.0-18.19~18.04.1","4.18.0-20.21~18.04.1","4.18.0-21.22~18.04.1","4.18.0-22.23~18.04.1","4.18.0-24.25~18.04.1","4.18.0-25.26~18.04.1","5.0.0-23.24~18.04.1","5.0.0-25.26~18.04.1","5.0.0-27.28~18.04.1","5.0.0-29.31~18.04.1","5.0.0-31.33~18.04.1","5.0.0-32.34~18.04.2","5.0.0-35.38~18.04.1","5.0.0-36.39~18.04.1","5.0.0-37.40~18.04.1","5.3.0-26.28~18.04.1","5.3.0-28.30~18.04.1","5.3.0-40.32~18.04.1","5.3.0-42.34~18.04.1","5.3.0-45.37~18.04.1","5.3.0-46.38~18.04.1","5.3.0-51.44~18.04.2","5.3.0-53.47~18.04.1","5.3.0-59.53~18.04.1","5.3.0-61.55~18.04.1","5.3.0-62.56~18.04.1","5.3.0-64.58~18.04.1","5.3.0-65.59","5.3.0-66.60","5.3.0-67.61","5.3.0-68.63","5.3.0-69.65","5.3.0-70.66","5.3.0-72.68","5.3.0-73.69","5.3.0-74.70","5.3.0-75.71","5.3.0-76.72"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-hwe-edge","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0-15.16~18.04.1","5.0.0-16.17~18.04.1","5.0.0-17.18~18.04.1","5.0.0-19.20~18.04.1","5.0.0-20.21~18.04.1","5.3.0-19.20~18.04.2","5.3.0-22.24~18.04.1","5.3.0-23.25~18.04.1","5.3.0-23.25~18.04.2","5.3.0-24.26~18.04.2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-oem","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.15.0-1002.3","4.15.0-1004.5","4.15.0-1006.9","4.15.0-1008.11","4.15.0-1009.12","4.15.0-1012.15","4.15.0-1013.16","4.15.0-1015.18","4.15.0-1017.20","4.15.0-1018.21","4.15.0-1021.24","4.15.0-1024.29","4.15.0-1026.31","4.15.0-1028.33","4.15.0-1030.35","4.15.0-1033.38","4.15.0-1034.39","4.15.0-1035.40","4.15.0-1036.41","4.15.0-1038.43","4.15.0-1039.44","4.15.0-1043.48","4.15.0-1045.50","4.15.0-1050.57","4.15.0-1056.65","4.15.0-1057.66","4.15.0-1059.68","4.15.0-1063.72","4.15.0-1064.73","4.15.0-1065.75","4.15.0-1066.76","4.15.0-1067.77","4.15.0-1069.79","4.15.0-1073.83","4.15.0-1076.86","4.15.0-1079.89","4.15.0-1080.90","4.15.0-1081.91","4.15.0-1087.97","4.15.0-1090.100","4.15.0-1091.101","4.15.0-1093.103","4.15.0-1094.104","4.15.0-1096.106","4.15.0-1097.107","4.15.0-1099.109","4.15.0-1100.110","4.15.0-1101.112","4.15.0-1102.113","4.15.0-1103.114"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-oracle-5.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0-1007.12~18.04.1","5.0.0-1008.13~18.04.1","5.0.0-1009.14~18.04.1","5.0.0-1010.15~18.04.1","5.0.0-1011.16","5.0.0-1013.18","5.0.0-1014.19"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"linux-oracle-5.3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1011.12~18.04.1","5.3.0-1013.14~18.04.1","5.3.0-1014.15~18.04.1","5.3.0-1016.18~18.04.1","5.3.0-1018.20~18.04.1","5.3.0-1024.26~18.04.1","5.3.0-1027.29~18.04.1","5.3.0-1028.30~18.04.1","5.3.0-1030.32~18.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-aws-5.11","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.11.0-1009.9~20.04.2","5.11.0-1014.15~20.04.1","5.11.0-1016.17~20.04.1","5.11.0-1017.18~20.04.1","5.11.0-1019.20~20.04.1","5.11.0-1020.21~20.04.2","5.11.0-1021.22~20.04.2","5.11.0-1022.23~20.04.1","5.11.0-1023.24~20.04.1","5.11.0-1025.27~20.04.1","5.11.0-1027.30~20.04.1","5.11.0-1028.31~20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-aws-5.8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.0-1035.37~20.04.1","5.8.0-1038.40~20.04.1","5.8.0-1041.43~20.04.1","5.8.0-1042.44~20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-azure-5.11","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.11.0-1007.7~20.04.2","5.11.0-1012.13~20.04.1","5.11.0-1013.14~20.04.1","5.11.0-1015.16~20.04.1","5.11.0-1017.18~20.04.1","5.11.0-1019.20~20.04.1","5.11.0-1020.21~20.04.1","5.11.0-1021.22~20.04.1","5.11.0-1022.23~20.04.1","5.11.0-1023.24~20.04.1","5.11.0-1025.27~20.04.1","5.11.0-1027.30~20.04.1","5.11.0-1028.31~20.04.2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-azure-5.8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.0-1033.35~20.04.1","5.8.0-1036.38~20.04.1","5.8.0-1039.42~20.04.1","5.8.0-1040.43~20.04.1","5.8.0-1041.44~20.04.1","5.8.0-1042.45~20.04.1","5.8.0-1043.46~20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-gcp-5.11","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.11.0-1009.10~20.04.1","5.11.0-1014.16~20.04.1","5.11.0-1017.19~20.04.1","5.11.0-1018.20~20.04.2","5.11.0-1020.22~20.04.1","5.11.0-1021.23~20.04.1","5.11.0-1022.24~20.04.1","5.11.0-1023.25~20.04.1","5.11.0-1024.26~20.04.1","5.11.0-1026.29~20.04.1","5.11.0-1028.32~20.04.1","5.11.0-1029.33~20.04.3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-gcp-5.8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.0-1032.34~20.04.1","5.8.0-1035.37~20.04.1","5.8.0-1038.40~20.04.1","5.8.0-1039.41"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-hwe-5.11","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.11.0-22.23~20.04.1","5.11.0-25.27~20.04.1","5.11.0-27.29~20.04.1","5.11.0-34.36~20.04.1","5.11.0-36.40~20.04.1","5.11.0-37.41~20.04.2","5.11.0-38.42~20.04.1","5.11.0-40.44~20.04.2","5.11.0-41.45~20.04.1","5.11.0-43.47~20.04.2","5.11.0-44.48~20.04.2","5.11.0-46.51~20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-hwe-5.8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.0-23.24~20.04.1","5.8.0-25.26~20.04.1","5.8.0-28.30~20.04.1","5.8.0-29.31~20.04.1","5.8.0-31.33~20.04.1","5.8.0-33.36~20.04.1","5.8.0-34.37~20.04.2","5.8.0-36.40~20.04.1","5.8.0-38.43~20.04.1","5.8.0-40.45~20.04.1","5.8.0-41.46~20.04.1","5.8.0-43.49~20.04.1","5.8.0-44.50~20.04.1","5.8.0-45.51~20.04.1","5.8.0-48.54~20.04.1","5.8.0-49.55~20.04.1","5.8.0-50.56~20.04.1","5.8.0-53.60~20.04.1","5.8.0-55.62~20.04.1","5.8.0-59.66~20.04.1","5.8.0-63.71~20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-intel-5.13","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.13.0-1007.7","5.13.0-1008.8","5.13.0-1009.9","5.13.0-1010.10","5.13.0-1011.11","5.13.0-1014.15","5.13.0-1017.19"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-oem-5.10","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.10.0-1008.9","5.10.0-1011.12","5.10.0-1013.14","5.10.0-1014.15","5.10.0-1016.17","5.10.0-1017.18","5.10.0-1019.20","5.10.0-1021.22","5.10.0-1022.23","5.10.0-1023.24","5.10.0-1025.26","5.10.0-1026.27","5.10.0-1029.30","5.10.0-1032.33","5.10.0-1033.34","5.10.0-1034.35","5.10.0-1038.40","5.10.0-1044.46","5.10.0-1045.47","5.10.0-1049.51","5.10.0-1050.52","5.10.0-1051.53","5.10.0-1052.54","5.10.0-1053.55","5.10.0-1055.58","5.10.0-1057.61"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-oem-5.13","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.13.0-1009.10","5.13.0-1010.11","5.13.0-1012.16","5.13.0-1014.18","5.13.0-1017.21","5.13.0-1019.23","5.13.0-1020.24","5.13.0-1021.25","5.13.0-1022.26","5.13.0-1026.32","5.13.0-1028.35","5.13.0-1029.36"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-oem-5.6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.6.0-1007.7","5.6.0-1008.8","5.6.0-1010.10","5.6.0-1011.11","5.6.0-1013.13","5.6.0-1017.17","5.6.0-1018.18","5.6.0-1020.20","5.6.0-1021.21","5.6.0-1023.23","5.6.0-1026.26","5.6.0-1027.27","5.6.0-1028.28","5.6.0-1031.32","5.6.0-1032.33","5.6.0-1033.35","5.6.0-1034.36","5.6.0-1035.37","5.6.0-1036.39","5.6.0-1039.43","5.6.0-1042.46","5.6.0-1047.51","5.6.0-1048.52","5.6.0-1050.54","5.6.0-1052.56","5.6.0-1053.57","5.6.0-1054.58","5.6.0-1055.59","5.6.0-1056.60"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-oracle-5.11","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.11.0-1008.8~20.04.1","5.11.0-1013.14~20.04.1","5.11.0-1016.17~20.04.1","5.11.0-1017.18~20.04.1","5.11.0-1019.20~20.04.1","5.11.0-1020.21~20.04.1","5.11.0-1021.22~20.04.1","5.11.0-1022.23~20.04.1","5.11.0-1023.24~20.04.1","5.11.0-1025.27~20.04.1","5.11.0-1027.30~20.04.1","5.11.0-1028.31~20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-oracle-5.8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.0-1031.32~20.04.2","5.8.0-1033.34~20.04.1","5.8.0-1034.35~20.04.2","5.8.0-1037.38~20.04.1","5.8.0-1038.39~20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-raspi2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1007.8","5.3.0-1014.16","5.3.0-1015.17","5.3.0-1017.19","5.4.0-1004.4","5.4.0-1006.6"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-riscv","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-24.28","5.4.0-26.30","5.4.0-27.31","5.4.0-28.32","5.4.0-30.34","5.4.0-31.35","5.4.0-33.37","5.4.0-34.38","5.4.0-36.41","5.4.0-37.42","5.4.0-39.44","5.4.0-40.45"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-riscv-5.11","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.11.0-1015.16~20.04.1","5.11.0-1017.18~20.04.1","5.11.0-1018.19~20.04.2","5.11.0-1020.21~20.04.1","5.11.0-1021.22~20.04.1","5.11.0-1022.23~20.04.1","5.11.0-1023.24~20.04.1","5.11.0-1024.25~20.04.1","5.11.0-1026.28~20.04.1","5.11.0-1028.31~20.04.1","5.11.0-1029.32~20.04.1","5.11.0-1030.34","5.11.0-1031.35"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-riscv-5.8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.0-14.16~20.04.1","5.8.0-14.16~20.04.3","5.8.0-16.18~20.04.1","5.8.0-17.19~20.04.1","5.8.0-18.20~20.04.1","5.8.0-20.22~20.04.1","5.8.0-22.24~20.04.1","5.8.0-25.27~20.04.1","5.8.0-26.28~20.04.1","5.8.0-29.31~20.04.1"]}],"products":[{"vendor":"linux","product":"kernel"},{"vendor":"linux","product":"linux_kernel"},{"vendor":"netapp","product":"h300e_firmware"},{"vendor":"netapp","product":"h300s_firmware"},{"vendor":"netapp","product":"h410c_firmware"},{"vendor":"netapp","product":"h410s_firmware"},{"vendor":"netapp","product":"h500e_firmware"},{"vendor":"netapp","product":"h500s_firmware"},{"vendor":"netapp","product":"h700e_firmware"},{"vendor":"netapp","product":"h700s_firmware"}],"references":[{"url":"https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.au","tags":["x_refsource_MISC","x_transferred","Mailing List","Patch"]},{"url":"https://security.netapp.com/advisory/ntap-20220318-0006/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-0646"},{"url":"https://lore.kernel.org/all/20220211011552.1861886-1-jk@codeconstruct.com.au"},{"url":"https://github.com/advisories/GHSA-c3x8-gg69-x2jw"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2022-0646","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-0646","tags":["report"]},{"url":"https://lore.kernel.org/all/20220211011552.1861886-1-jk@codeconstruct.com.au/T/","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-0646","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-0646","description":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.","status":"published","published":"2022-02-18T17:50:36Z","modified":"2024-08-02T23:32:46.447Z","cwes":["CWE-459"],"updated_at":"2026-11-02T14:34:41.69911Z"}],"euvd":[{"id":"EUVD-2022-15740","description":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.","status":"published","published":"2022-02-18T17:50:36Z","modified":"2024-08-02T23:32:46Z","updated_at":"2026-11-03T03:26:04.481305Z"}],"ghsa":[{"id":"GHSA-c3x8-gg69-x2jw","title":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP)...","description":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.","status":"published","published":"2022-02-19T00:01:28Z","modified":"2023-02-13T00:31:18Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416","CWE-459"],"updated_at":"2026-11-02T14:54:05.462623Z"}],"nvd":[{"id":"CVE-2022-0646","description":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.","status":"published","published":"2022-02-18T18:15:11.783Z","modified":"2026-06-17T04:20:59.63Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-459","CWE-416"],"updated_at":"2026-11-02T14:07:12.155838Z"}],"osv":[{"id":"BELL-CVE-2022-0646","title":"CVE-2022-0646 does not affect BellSoft software","status":"withdrawn","published":"2022-02-18T18:15:00Z","modified":"2026-01-26T09:46:24.243058Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:16.5265Z"},{"id":"UBUNTU-CVE-2022-0646","description":"A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.","status":"published","published":"2022-02-18T18:15:00Z","modified":"2025-10-24T04:52:51Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:53:51.630172Z"}]}}