{"id":"USN-6152-1","aliases":[],"status":"published","title":"linux-gke regression","description":"It was discovered that NFS client's access cache implementation in the\nLinux kernel caused a severe NFS performance degradation in certain\nconditions. This updated makes the NFS file-access stale cache behavior\nto be optional.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2023-06-08T22:48:40Z","modified":"2026-02-10T04:43:09Z","fixes":[{"ecosystem":"Ubuntu:20.04:LTS","package":"linux-gke","fixed_in":["5.4.0-1101.108"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"linux-gke","fixed_in":["5.15.0-1035.40"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-gke","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1101.108"}]}],"versions":["5.4.0-1033.35","5.4.0-1035.37","5.4.0-1036.38","5.4.0-1037.39","5.4.0-1039.41","5.4.0-1041.43","5.4.0-1042.44","5.4.0-1043.45","5.4.0-1044.46","5.4.0-1046.48","5.4.0-1049.52","5.4.0-1051.54","5.4.0-1052.55","5.4.0-1053.56","5.4.0-1054.57","5.4.0-1055.58","5.4.0-1056.59","5.4.0-1057.60","5.4.0-1059.62","5.4.0-1061.64","5.4.0-1062.65","5.4.0-1063.66","5.4.0-1065.68","5.4.0-1066.69","5.4.0-1067.70","5.4.0-1068.71","5.4.0-1071.76","5.4.0-1072.77","5.4.0-1074.79","5.4.0-1076.82","5.4.0-1078.84","5.4.0-1080.86","5.4.0-1081.87","5.4.0-1083.89","5.4.0-1084.90","5.4.0-1086.93","5.4.0-1087.94","5.4.0-1090.97","5.4.0-1091.98","5.4.0-1094.101","5.4.0-1095.102","5.4.0-1096.103","5.4.0-1097.104","5.4.0-1098.105","5.4.0-1099.106","5.4.0-1100.107"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"linux-gke","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1035.40"}]}],"versions":["5.15.0-1002.2","5.15.0-1003.3","5.15.0-1004.5","5.15.0-1005.6","5.15.0-1006.7","5.15.0-1008.10","5.15.0-1010.13","5.15.0-1011.14","5.15.0-1014.17","5.15.0-1015.18","5.15.0-1016.19","5.15.0-1017.20","5.15.0-1019.23","5.15.0-1020.25","5.15.0-1023.28","5.15.0-1024.29","5.15.0-1027.32","5.15.0-1028.33","5.15.0-1030.35","5.15.0-1031.36","5.15.0-1032.37","5.15.0-1033.38","5.15.0-1034.39"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-6152-1","tags":["advisory"]},{"url":"https://launchpad.net/bugs/2022098","tags":["report"]}],"sources":{"osv":[{"id":"USN-6152-1","title":"linux-gke regression","description":"It was discovered that NFS client's access cache implementation in the\nLinux kernel caused a severe NFS performance degradation in certain\nconditions. This updated makes the NFS file-access stale cache behavior\nto be optional.\n","status":"published","published":"2023-06-08T22:48:40Z","modified":"2026-02-10T04:43:09Z","updated_at":"2026-11-02T16:58:16.738762Z"}]}}