{"id":"CVE-2026-63827","summary":"apparmor: fix use-after-free in rawdata dedup loop","details":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix use-after-free in rawdata dedup loop\n\naa_replace_profiles() walks ns-\u003erawdata_list to dedup the incoming\npolicy blob against entries already attached to existing profiles.\nPer the kernel-doc on struct aa_loaddata, list membership does not\nhold a reference: profiles hold pcount, and when the last pcount\ndrops, do_ploaddata_rmfs() is queued on a workqueue that takes\nns-\u003elock and removes the entry. Between dropping the last pcount\nand the workqueue running, an entry remains on the list with\npcount == 0.\n\naa_get_profile_loaddata() is an unconditional kref_get() on\npcount, so when the dedup loop hits such an entry, refcount\nhardening reports\n\n  refcount_t: addition on 0; use-after-free.\n\ninside aa_replace_profiles(), and the poisoned counter then\ntrips \"saturated\" and \"underflow\" warnings on the subsequent\nuses of the same loaddata.\n\nBefore commit a0b7091c4de4 (\"apparmor: fix race on rawdata\ndereference\") the dedup path used a get_unless_zero-style helper\non a single counter, so the existing \"if (tmp)\" guard was\nmeaningful. The split-refcount refactor introduced\naa_get_profile_loaddata(), which has plain kref_get() semantics,\nand the guard quietly became a no-op.\n\nIntroduce aa_get_profile_loaddata_not0(), matching the existing\n_not0 convention used by aa_get_profile_not0(), and use it for\nthe rawdata_list dedup lookup so dying entries are skipped.\n\nReproduced on x86_64 with v7.1-rc5 in QEMU+KVM running Ubuntu\n24.04 + stress-ng 0.17.06:\n\n  stress-ng --apparmor 1 --klog-check --timeout 60s\n\nWithout this patch the three refcount_t warnings fire within a\nfew seconds. With it the same 60 s run is clean. Coverage is a\nsmoke-test only; a longer soak with CONFIG_KASAN, CONFIG_KCSAN\nand CONFIG_PROVE_LOCKING would be welcome from anyone with the\ncycles.","modified":"2026-07-21T03:47:30.339170990Z","published":"2026-07-19T12:02:22.083Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63827.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/15fd83a1e42ede15070968806bb6c8b1a5170688"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5e34fa9f6f7cd688ae153fff13139a5cf2d42339"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6f060496d03e4dc560a40f73770bd08335cb7a27"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a7a2890028f16e5b0af0bb005d80fcb32559cca3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c3ca2631073b2cef06824fd2bfc452ff7a1023de"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ce261a20b41db522e320a41bbf1292bf85af66df"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63827.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63827"},{"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":"6b6ba87579c7e7c669e0bec91823e7fb693bc5df"},{"fixed":"a7a2890028f16e5b0af0bb005d80fcb32559cca3"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6ef1f2926c41ab96952d9696d55a052f1b3a9418"},{"fixed":"15fd83a1e42ede15070968806bb6c8b1a5170688"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f9761add6d100962a23996cb68f3d6abdd4d1815"},{"fixed":"ce261a20b41db522e320a41bbf1292bf85af66df"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"af782cc8871e3683ddd5a3cd2f7df526599863a9"},{"fixed":"c3ca2631073b2cef06824fd2bfc452ff7a1023de"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a0b7091c4de45a7325c8780e6934a894f92ac86b"},{"fixed":"5e34fa9f6f7cd688ae153fff13139a5cf2d42339"},{"fixed":"6f060496d03e4dc560a40f73770bd08335cb7a27"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"3b8e77c7abab40e6de9ad9de730d77984a498840"},{"last_affected":"d9d8560b9b7932f8cffc4c068c14289220900f79"},{"last_affected":"763e838adc3c7ec5a7df2990ce84cad951e42721"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.1.169"},{"fixed":"6.1.177"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.6.130"},{"fixed":"6.6.144"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.77"},{"fixed":"6.12.95"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.18.18"},{"fixed":"6.18.38"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.10.253"},{"fixed":"5.11"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.15.203"},{"fixed":"5.16"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.19.8"},{"fixed":"6.20"}]}],"versions":["v6.1.176","v6.1.175","v6.1.174","v6.1.173","v6.1.172","v6.1.171","v6.1.170","v6.1.169","v6.6.143","v6.6.142","v6.6.141","v6.6.140","v6.6.139","v6.6.138","v6.6.137","v6.6.136","v6.6.135","v6.6.134","v6.6.133","v6.6.132","v6.6.131","v6.6.130","v6.12.94","v6.12.93","v6.12.92","v6.12.91","v6.12.90","v6.12.89","v6.12.88","v6.12.87","v6.12.86","v6.12.85","v6.12.84","v6.12.83","v6.12.82","v6.12.81","v6.12.80","v6.12.79","v6.12.78","v6.12.77","v6.18.37","v6.18.36","v6.18.35","v6.18.34","v6.18.33","v6.18.32","v6.18.31","v6.18.30","v6.18.29","v6.18.28","v6.18.27","v6.18.26","v6.18.25","v6.18.24","v6.18.23","v6.18.22","v6.18.21","v6.18.20","v6.18.19","v6.18.18","v5.15.202","v5.10.252","v6.19-rc2","v6.19","v6.19.7","v6.19.6","v6.19.5","v5.15.201","v5.10.251","v6.19.4","v6.19.3","v6.19.2","v5.15.200","v5.10.250","v6.19.1","v5.15.199","v5.10.249","v6.19-rc8","v6.19-rc1","v6.19-rc6","v5.15.198","v5.10.248","v6.19-rc7","v6.19-rc5","v6.19-rc4","v6.19-rc3","v5.10.247","v5.15.197","v6.18","v6.18-rc1","v5.15.196","v5.10.246","v6.18-rc7","v6.18-rc3","v6.18-rc5","v6.18-rc6","v6.18-rc2","v6.18-rc4","v5.15.195","v5.10.245","v5.15.194","v6.17","v6.17-rc7","v6.17-rc1","v6.17-rc2","v5.15.193","v5.10.244","v6.17-rc6","v6.17-rc4","v6.17-rc5","v6.17-rc3","v6.16","v5.15.192","v5.10.243","v5.15.191","v5.10.242","v5.10.241","v5.15.190","v5.15.189","v5.10.240","v6.16-rc6","v6.16-rc1","v6.16-rc4","v6.16-rc2","v6.16-rc5","v6.16-rc7","v6.16-rc3","v6.14-rc3","v5.15.188","v5.10.239","v5.15.187","v5.15.186","v5.15.185","v5.10.238","v6.15","v6.15-rc1","v6.15-rc6","v6.15-rc3","v5.15.184","v5.10.237","v6.15-rc2","v6.15-rc7","v6.15-rc4","v5.15.183","v5.15.182","v6.15-rc5","v5.15.181","v6.14","v5.15.180","v5.10.236","v5.15.179","v5.10.235","v6.14-rc1","v6.14-rc7","v6.14-rc6","v6.14-rc4","v6.14-rc5","v6.14-rc2","v5.15.178","v5.10.234","v6.13","v6.13-rc1","v5.15.177","v5.10.233","v6.13-rc6","v5.15.176","v6.13-rc7","v6.13-rc2","v6.13-rc5","v6.13-rc3","v5.15.175","v5.10.232","v6.12-rc1","v6.13-rc4","v5.15.174","v5.10.231","v5.15.173","v5.10.230","v6.12","v6.12-rc7","v5.15.172","v5.10.229","v6.12-rc3","v5.15.171","v6.12-rc4","v6.12-rc6","v6.12-rc5","v5.15.170","v5.10.228","v6.12-rc2","v5.15.169","v5.15.168","v5.10.227","v6.11-rc1","v5.15.167","v5.10.226","v6.11-rc5","v6.11","v6.11-rc7","v6.10-rc1","v6.11-rc6","v6.11-rc3","v5.15.166","v5.10.225","v6.11-rc4","v6.11-rc2","v5.15.165","v5.10.224","v6.10","v5.15.164","v5.10.223","v5.15.163","v5.10.222","v6.10-rc6","v5.15.162","v5.10.221","v6.10-rc7","v6.10-rc3","v6.9-rc1","v6.10-rc5","v6.10-rc2","v5.15.161","v5.10.220","v6.10-rc4","v6.9","v5.10.219","v5.15.160","v5.10.218","v5.15.159","v5.10.217","v5.15.158","v5.10.216","v6.9-rc6","v6.9-rc7","v6.9-rc5","v6.9-rc3","v6.9-rc2","v6.8","v6.9-rc4","v5.15.157","v5.10.215","v5.15.156","v6.8-rc1","v5.15.155","v5.15.154","v5.10.214","v5.15.153","v5.10.213","v5.15.152","v6.7-rc1","v6.8-rc7","v5.15.151","v5.10.212","v6.8-rc6","v6.8-rc5","v6.8-rc4","v6.8-rc3","v6.8-rc2","v5.15.150","v5.10.211","v5.15.149","v5.10.210","v5.15.148","v5.10.209","v5.15.147","v5.10.208","v6.7","v6.7-rc3","v6.7-rc8","v5.15.146","v5.10.207","v5.10.206","v6.7-rc7","v5.15.145","v5.10.205","v6.7-rc6","v5.15.144","v6.7-rc2","v5.10.204","v5.15.143","v6.7-rc4","v6.7-rc5","v5.15.142","v5.10.203","v5.15.141","v5.10.202","v6.6","v5.15.140","v5.15.139","v5.10.201","v5.15.138","v5.10.200","v6.6-rc1","v5.10.199","v5.15.137","v6.6-rc5","v6.6-rc3","v6.6-rc7","v6.6-rc6","v6.6-rc4","v5.15.136","v5.10.198","v5.15.135","v6.6-rc2","v5.15.134","v5.10.197","v5.15.133","v6.5","v5.15.132","v5.10.196","v5.10.195","v6.5-rc1","v5.15.131","v5.10.194","v6.5-rc2","v5.15.130","v6.5-rc7","v5.10.193","v5.15.129","v5.10.192","v5.15.128","v5.10.191","v5.15.127","v6.5-rc4","v6.5-rc3","v6.5-rc6","v5.15.126","v5.10.190","v6.5-rc5","v5.15.125","v5.10.189","v5.15.124","v5.10.188","v5.15.123","v5.15.122","v5.10.187","v5.10.186","v5.15.121","v5.15.120","v6.4","v6.4-rc7","v6.4-rc1","v5.15.119","v6.4-rc6","v5.15.118","v5.10.185","v6.4-rc5","v6.4-rc3","v5.15.117","v5.10.184","v6.4-rc4","v6.4-rc2","v5.15.116","v5.10.183","v5.15.115","v5.10.182","v5.15.114","v5.10.181","v5.15.113","v5.10.180","v5.15.112","v5.15.111","v5.10.179","v6.3","v5.15.110","v5.15.109","v6.3-rc1","v5.15.108","v5.10.178","v6.3-rc7","v6.3-rc2","v6.3-rc3","v6.3-rc5","v6.3-rc6","v6.3-rc4","v5.15.107","v5.10.177","v6.2-rc6","v5.15.106","v5.15.105","v5.10.176","v5.15.104","v5.15.103","v5.10.175","v5.15.102","v5.10.174","v5.15.101","v5.10.173","v5.15.100","v5.10.172","v5.15.99","v5.15.98","v6.2-rc1","v6.2","v5.15.97","v5.10.171","v5.15.96","v5.10.170","v5.15.95","v5.10.169","v6.2-rc2","v6.2-rc8","v5.15.94","v5.10.168","v6.2-rc5","v6.2-rc4","v5.10.167","v5.15.93","v6.2-rc7","v5.15.92","v6.2-rc3","v5.15.91","v5.10.166","v5.15.90","v5.10.165","v5.15.89","v5.10.164","v5.15.88","v5.10.163","v6.1-rc1","v5.15.87","v5.10.162","v5.15.86","v5.10.161","v5.15.85","v6.1","v5.15.84","v5.10.160","v5.15.83","v5.10.159","v6.1-rc8","v6.1-rc3","v5.15.82","v5.10.158","v6.1-rc6","v5.15.81","v5.10.157","v6.1-rc7","v6.1-rc4","v6.1-rc2","v5.15.80","v5.10.156","v5.15.79","v6.1-rc5","v5.10.155","v5.15.78","v5.10.154","v5.15.77","v5.10.153","v5.15.76","v5.10.152","v5.10.151","v5.15.75","v5.10.150","v6.0-rc1","v5.10.149","v5.15.74","v5.10.148","v6.0","v5.15.73","v5.10.147","v5.15.72","v6.0-rc7","v5.15.71","v5.10.146","v6.0-rc3","v6.0-rc2","v5.15.70","v5.10.145","v6.0-rc6","v6.0-rc4","v6.0-rc5","v5.10.144","v5.15.69","v5.15.68","v5.10.143","v5.10.142","v5.15.67","v5.15.66","v5.15.65","v5.10.141","v5.15.64","v5.10.140","v5.19","v5.15.63","v5.10.139","v5.10.138","v5.15.62","v5.10.137","v5.15.61","v5.10.136","v5.15.60","v5.19-rc1","v5.15.59","v5.10.135","v5.15.58","v5.10.134","v5.19-rc5","v5.19-rc8","v5.19-rc6","v5.18","v5.19-rc2","v5.19-rc7","v5.15.57","v5.10.133","v5.19-rc3","v5.10.132","v5.15.56","v5.15.55","v5.10.131","v5.19-rc4","v5.10.130","v5.15.54","v5.15.53","v5.10.129","v5.15.52","v5.10.128","v5.15.51","v5.10.127","v5.18-rc1","v5.15.50","v5.10.126","v5.10.125","v5.15.49","v5.10.124","v5.15.48","v5.10.123","v5.15.47","v5.10.122","v5.15.46","v5.10.121","v5.15.45","v5.10.120","v5.15.44","v5.10.119","v5.10.118","v5.15.43","v5.18-rc7","v5.18-rc2","v5.15.42","v5.15.41","v5.10.117","v5.15.40","v5.10.116","v5.18-rc5","v5.17","v5.18-rc4","v5.18-rc3","v5.18-rc6","v5.15.39","v5.10.115","v5.15.38","v5.10.114","v5.15.37","v5.10.113","v5.15.36","v5.15.35","v5.10.112","v5.15.34","v5.10.111","v5.10.110","v5.15.33","v5.10.109","v5.15.32","v5.17-rc6","v5.17-rc4","v5.15.31","v5.10.108","v5.17-rc8","v5.17-rc7","v5.15.30","v5.10.107","v5.17-rc1","v5.15.29","v5.10.106","v5.17-rc3","v5.15.28","v5.10.105","v5.17-rc2","v5.15.27","v5.10.104","v5.15.26","v5.10.103","v5.17-rc5","v5.16","v5.15.25","v5.10.102","v5.15.24","v5.10.101","v5.15.23","v5.10.100","v5.15.22","v5.10.99","v5.15.21","v5.10.98","v5.15.20","v5.10.97","v5.15.19","v5.10.96","v5.15.18","v5.10.95","v5.15.17","v5.10.94","v5.15.16","v5.10.93","v5.10.92","v5.15.15","v5.16-rc1","v5.10.91","v5.15.14","v5.16-rc8","v5.15.13","v5.10.90","v5.16-rc5","v5.16-rc6","v5.15.12","v5.10.89","v5.16-rc7","v5.15.11","v5.10.88","v5.16-rc3","v5.16-rc2","v5.15.10","v5.10.87","v5.15.9","v5.10.86","v5.16-rc4","v5.10.85","v5.15.8","v5.10.84","v5.15.7","v5.15","v5.15.6","v5.10.83","v5.10.82","v5.15.5","v5.10.81","v5.15.4","v5.10.80","v5.15.3","v5.15.2","v5.10.79","v5.15.1","v5.10.78","v5.10.77","v5.15-rc2","v5.15-rc1","v5.15-rc4","v5.15-rc7","v5.10.76","v5.15-rc3","v5.15-rc5","v5.10.75","v5.15-rc6","v5.10.74","v5.14","v5.14-rc3","v5.10.73","v5.10.72","v5.10.71","v5.14-rc1","v5.10.70","v5.10.69","v5.10.68","v5.10.67","v5.10.66","v5.10.65","v5.10.64","v5.10.63","v5.10.62","v5.10.61","v5.14-rc2","v5.14-rc7","v5.14-rc6","v5.10.60","v5.13-rc1","v5.14-rc5","v5.14-rc4","v5.10.59","v5.10.58","v5.10.57","v5.10.56","v5.10.55","v5.13","v5.10.54","v5.10.53","v5.10.52","v5.10.51","v5.10.50","v5.10.49","v5.10.48","v5.13-rc6","v5.10.47","v5.13-rc7","v5.10.46","v5.13-rc3","v5.13-rc2","v5.13-rc4","v5.10.45","v5.10.44","v5.13-rc5","v5.10.43","v5.10.42","v5.10.41","v5.10.40","v5.10.39","v5.12","v5.10.38","v5.10.37","v5.10.36","v5.10.35","v5.10.34","v5.12-rc2","v5.12-rc1-dontuse","v5.12-rc1","v5.10.33","v5.10.32","v5.12-rc8","v5.12-rc3","v5.10.31","v5.12-rc7","v5.12-rc5","v5.10.30","v5.12-rc6","v5.10.29","v5.10.28","v5.10.27","v5.12-rc4","v5.10","v5.10.26","v5.10.25","v5.11","v5.10.24","v5.10.23","v5.10.22","v5.10.21","v5.10.20","v5.10.19","v5.10.18","v5.11-rc3","v5.10.17","v5.11-rc7","v5.11-rc6","v5.10.16","v5.11-rc5","v5.11-rc1","v5.10.15","v5.11-rc4","v5.10.14","v5.11-rc2","v5.10.13","v5.10.12","v5.10.11","v5.10.10","v5.10.9","v5.10-rc1","v5.10.8","v5.10.7","v5.10.6","v5.10.5","v5.10.4","v5.10.3","v5.10.2","v5.10.1","v5.10-rc7","v5.10-rc4","v5.10-rc3","v5.10-rc6","v5.9","v5.10-rc2","v5.10-rc5","v5.9-rc1","v5.9-rc7","v5.9-rc8","v5.9-rc6","v5.9-rc4","v5.9-rc5","v5.9-rc3","v5.9-rc2","v5.8","v5.7","v5.8-rc2","v5.8-rc1","v5.8-rc7","v5.8-rc5","v5.8-rc3","v5.8-rc4","v5.8-rc6","v5.7-rc4","v5.7-rc7","v5.7-rc1","v5.7-rc3","v5.7-rc2","v5.7-rc5","v5.7-rc6","v5.6","v5.6-rc1","v5.6-rc7","v5.6-rc6","v5.6-rc3","v5.6-rc4","v5.6-rc2","v5.6-rc5","v5.5","v5.5-rc5","v5.5-rc7","v5.5-rc2","v5.5-rc1","v5.4","v5.5-rc4","v5.5-rc3","v5.5-rc6","v5.4-rc1","v5.4-rc6","v5.4-rc3","v5.4-rc4","v5.4-rc8","v5.4-rc7","v5.4-rc5","v5.3","v5.4-rc2","v5.3-rc5","v5.3-rc1","v5.3-rc2","v5.3-rc3","v5.3-rc8","v5.3-rc7","v5.3-rc4","v5.2","v5.3-rc6","v5.2-rc2","v5.2-rc7","v5.2-rc4","v5.2-rc1","v5.2-rc5","v5.2-rc6","v5.2-rc3","v5.1","v5.0-rc8","v5.1-rc7","v5.1-rc1","v5.1-rc6","v5.1-rc5","v5.0","v5.1-rc3","v5.1-rc2","v5.1-rc4","v5.0-rc1","v5.0-rc4","v5.0-rc3","v5.0-rc6","v5.0-rc7","v5.0-rc2","v5.0-rc5","v4.20-rc1","v4.19","v4.20","v4.20-rc7","v4.20-rc5","v4.20-rc6","v4.20-rc4","v4.20-rc2","v4.20-rc3","v4.19-rc2","v4.19-rc8","v4.19-rc4","v4.19-rc1","v4.19-rc7","v4.19-rc6","v4.19-rc5","v4.19-rc3","v4.18","v4.18-rc1","v4.18-rc8","v4.18-rc2","v4.18-rc5","v4.18-rc6","v4.18-rc7","v4.17","v4.18-rc3","v4.18-rc4","v4.17-rc1","v4.17-rc2","v4.17-rc7","v4.17-rc3","v4.17-rc4","v4.16","v4.17-rc6","v4.17-rc5","v4.16-rc7","v4.16-rc4","v4.16-rc1","v4.16-rc2","v4.16-rc5","v4.16-rc3","v4.16-rc6","v4.14","v4.15","v4.15-rc1","v4.15-rc4","v4.15-rc9","v4.15-rc8","v4.15-rc7","v4.15-rc3","v4.15-rc2","v4.15-rc5","v4.15-rc6","v4.14-rc1","v4.14-rc7","v4.14-rc3","v4.13","v4.14-rc8","v4.14-rc4","v4.14-rc6","v4.14-rc2","v4.14-rc5","v4.13-rc2","v4.13-rc1","v4.13-rc3","v4.13-rc7","v4.13-rc4","v4.13-rc5","v4.13-rc6","v4.12-rc1","v4.12","v4.12-rc5","v4.12-rc7","v4.12-rc6","v4.12-rc4","v4.12-rc2","v4.12-rc3","v4.11","v4.11-rc1","v4.11-rc6","v4.11-rc8","v4.11-rc7","v4.11-rc3","v4.11-rc5","v4.11-rc2","v4.11-rc4","v4.10","v4.9","v4.10-rc8","v4.10-rc3","v4.10-rc1","v4.10-rc7","v4.10-rc6","v4.10-rc2","v4.10-rc5","v4.10-rc4","v4.9-rc7","v4.9-rc6","v4.9-rc8","v4.9-rc1","v4.9-rc5","v4.9-rc3","v4.9-rc4","v4.9-rc2","v4.8","v4.8-rc8","v4.8-rc2","v4.8-rc1","v4.8-rc7","v4.8-rc6","v4.8-rc5","v4.8-rc4","v4.8-rc3","v4.7","v4.7-rc4","v4.7-rc2","v4.7-rc1","v4.7-rc7","v4.7-rc6","v4.7-rc3","v4.7-rc5","v4.6","v4.6-rc1","v4.6-rc6","v4.6-rc4","v4.6-rc7","v4.6-rc5","v4.5-rc4","v4.6-rc2","v4.6-rc3","v4.5","v4.4","v4.5-rc1","v4.5-rc6","v4.5-rc2","v4.5-rc7","v4.5-rc5","v4.5-rc3","v4.4-rc1","v4.4-rc2","v4.4-rc8","v4.4-rc3","v4.4-rc7","v4.4-rc5","v4.4-rc6","v4.4-rc4","v4.3","v4.3-rc1","v4.3-rc6","v4.3-rc4","v4.3-rc2","v4.3-rc7","v4.3-rc5","v4.3-rc3","v4.2","v4.2-rc2","v4.2-rc1","v4.2-rc8","v4.2-rc4","v4.2-rc6","v4.2-rc7","v4.0-rc5","v4.2-rc5","v4.2-rc3","v4.1-rc2","v4.1","v4.1-rc1","v4.1-rc8","v4.1-rc7","v4.1-rc6","v4.1-rc3","v4.1-rc4","v4.0","v4.1-rc5","v4.0-rc1","v4.0-rc2","v4.0-rc7","v4.0-rc3","v4.0-rc6","v4.0-rc4","v3.19","v3.19-rc7","v3.19-rc5","v3.19-rc1","v3.19-rc6","v3.19-rc4","v3.18-rc1","v3.19-rc3","v3.19-rc2","v3.18","v3.18-rc7","v3.18-rc6","v3.18-rc2","v3.18-rc3","v3.18-rc4","v3.18-rc5","v3.17","v3.17-rc1","v3.17-rc7","v3.17-rc2","v3.17-rc4","v3.16","v3.17-rc5","v3.17-rc6","v3.17-rc3","v3.16-rc7","v3.16-rc1","v3.16-rc3","v3.16-rc5","v3.16-rc6","v3.16-rc2","v3.16-rc4","v3.13","v3.15","v3.15-rc5","v3.15-rc8","v3.15-rc1","v3.15-rc6","v3.15-rc3","v3.15-rc7","v3.15-rc2","v3.15-rc4","v3.14","v3.14-rc4","v3.14-rc8","v3.14-rc7","v3.14-rc6","v3.14-rc1","v3.14-rc2","v3.14-rc5","v3.14-rc3","v3.13-rc6","v3.13-rc8","v3.12","v3.13-rc7","v3.13-rc1","v3.13-rc4","v3.13-rc3","v3.13-rc5","v3.13-rc2","v3.12-rc7","v3.12-rc3","v3.12-rc6","v3.12-rc1","v3.12-rc5","v3.11","v3.12-rc2","v3.12-rc4","v3.11-rc7","v3.11-rc2","v3.11-rc5","v3.11-rc1","v3.11-rc3","v3.11-rc4","v3.11-rc6","v3.10-rc2","v3.10","v3.10-rc7","v3.10-rc6","v3.10-rc1","v3.10-rc5","v3.10-rc3","v3.10-rc4","v3.9","v3.9-rc2","v3.9-rc7","v3.9-rc8","v3.9-rc3","v3.9-rc6","v3.9-rc5","v3.9-rc4","v3.9-rc1","v3.8","v3.8-rc7","v3.8-rc6","v3.8-rc5","v3.8-rc2","v3.8-rc1","v3.8-rc3","v3.8-rc4","v3.7","v3.7-rc1","v3.6","v3.7-rc6","v3.7-rc7","v3.7-rc3","v3.7-rc8","v3.7-rc2","v3.7-rc4","v3.7-rc5","v3.6-rc7","v3.6-rc1","v3.5-rc3","v3.6-rc6","v3.6-rc5","v3.5","v3.6-rc3","v3.6-rc4","v3.6-rc2","v3.4-rc4","v3.5-rc7","v3.5-rc5","v3.5-rc6","v3.5-rc2","v3.5-rc1","v3.5-rc4","v3.4","v3.4-rc2","v3.4-rc1","v3.4-rc7","v3.4-rc6","v3.4-rc3","v3.4-rc5","v3.3","v3.3-rc6","v3.3-rc3","v3.3-rc7","v3.3-rc2","v3.3-rc5","v3.2","v3.3-rc4","v3.3-rc1","v3.2-rc4","v3.2-rc7","v3.2-rc6","v3.2-rc5","v3.2-rc3","v3.1","v3.2-rc2","v3.2-rc1","v3.1-rc1","v3.1-rc9","v3.1-rc8","v3.1-rc10","v3.1-rc7","v3.1-rc3","v3.1-rc2","v3.1-rc4","v3.1-rc5","v3.0","v3.1-rc6","v3.0-rc7","v3.0-rc4","v3.0-rc6","v3.0-rc5","v3.0-rc3","v3.0-rc1","v2.6.39","v3.0-rc2","v2.6.38","v2.6.39-rc2","v2.6.39-rc7","v2.6.39-rc5","v2.6.39-rc1","v2.6.38-rc7","v2.6.39-rc6","v2.6.39-rc4","v2.6.39-rc3","v2.6.37","v2.6.38-rc1","v2.6.38-rc8","v2.6.38-rc2","v2.6.38-rc6","v2.6.38-rc5","v2.6.38-rc4","v2.6.38-rc3","v2.6.37-rc4","v2.6.37-rc2","v2.6.36","v2.6.37-rc5","v2.6.37-rc8","v2.6.37-rc7","v2.6.37-rc6","v2.6.37-rc1","v2.6.37-rc3","v2.6.36-rc6","v2.6.35-rc4","v2.6.36-rc8","v2.6.35","v2.6.36-rc7","v2.6.36-rc3","v2.6.36-rc5","v2.6.36-rc4","v2.6.36-rc2","v2.6.36-rc1","v2.6.35-rc5","v2.6.35-rc6","v2.6.34","v2.6.35-rc3","v2.6.35-rc1","v2.6.35-rc2","v2.6.34-rc7","v2.6.34-rc6","v2.6.34-rc5","v2.6.34-rc4","v2.6.34-rc3","v2.6.34-rc2","v2.6.34-rc1","v2.6.33","v2.6.33-rc6","v2.6.33-rc8","v2.6.33-rc4","v2.6.33-rc5","v2.6.33-rc3","v2.6.33-rc7","v2.6.33-rc2","v2.6.32","v2.6.33-rc1","v2.6.32-rc8","v2.6.32-rc7","v2.6.32-rc6","v2.6.31","v2.6.32-rc5","v2.6.32-rc4","v2.6.32-rc2","v2.6.32-rc1","v2.6.32-rc3","v2.6.31-rc9","v2.6.31-rc1","v2.6.31-rc7","v2.6.31-rc8","v2.6.31-rc6","v2.6.30-rc6","v2.6.30","v2.6.31-rc4","v2.6.31-rc5","v2.6.31-rc3","v2.6.31-rc2","v2.6.30-rc7","v2.6.30-rc8","v2.6.30-rc5","v2.6.30-rc3","v2.6.30-rc4","v2.6.30-rc1","v2.6.30-rc2","v2.6.29","v2.6.29-rc8","v2.6.29-rc7","v2.6.29-rc5","v2.6.29-rc1","v2.6.29-rc6","v2.6.29-rc4","v2.6.29-rc3","v2.6.29-rc2","v2.6.28","v2.6.28-rc7","v2.6.28-rc9","v2.6.28-rc8","v2.6.28-rc6","v2.6.28-rc5","v2.6.28-rc4","v2.6.28-rc2","v2.6.28-rc3","v2.6.28-rc1","v2.6.27","v2.6.27-rc7","v2.6.27-rc9","v2.6.27-rc8","v2.6.27-rc5","v2.6.27-rc6","v2.6.27-rc4","v2.6.27-rc1","v2.6.27-rc3","v2.6.27-rc2","v2.6.26","v2.6.26-rc9","v2.6.26-rc8","v2.6.26-rc3","v2.6.26-rc7","v2.6.26-rc6","v2.6.26-rc5","v2.6.26-rc4","v2.6.26-rc2","v2.6.26-rc1","v2.6.25","v2.6.25-rc7","v2.6.25-rc9","v2.6.25-rc8","v2.6.25-rc6","v2.6.25-rc5","v2.6.25-rc3","v2.6.25-rc4","v2.6.24","v2.6.25-rc2","v2.6.25-rc1","v2.6.24-rc8","v2.6.24-rc7","v2.6.24-rc6","v2.6.24-rc5","v2.6.24-rc4","v2.6.24-rc3","v2.6.24-rc2","v2.6.24-rc1","v2.6.23","v2.6.23-rc9","v2.6.23-rc8","v2.6.23-rc5","v2.6.23-rc7","v2.6.23-rc6","v2.6.23-rc4","v2.6.23-rc3","v2.6.23-rc2","v2.6.23-rc1","v2.6.22","v2.6.22-rc7","v2.6.22-rc6","v2.6.22-rc5","v2.6.22-rc4","v2.6.22-rc3","v2.6.22-rc2","v2.6.22-rc1","v2.6.21","v2.6.21-rc7","v2.6.21-rc6","v2.6.21-rc5","v2.6.21-rc4","v2.6.21-rc3","v2.6.21-rc2","v2.6.21-rc1","v2.6.20-rc7","v2.6.20-rc6","v2.6.20-rc5","v2.6.20-rc4","v2.6.20-rc3","v2.6.20-rc1","v2.6.20-rc2","v2.6.19-rc2","v2.6.18","v2.6.19-rc1","v2.6.18-rc6","v2.6.18-rc5","v2.6.18-rc3","v2.6.18-rc2","v2.6.18-rc1","v2.6.17","v2.6.17-rc4","v2.6.17-rc6","v2.6.17-rc5","v2.6.17-rc3","v2.6.17-rc2","v2.6.17-rc1","v2.6.16","v2.6.16-rc6","v2.6.16-rc4","v2.6.16-rc5","v2.6.16-rc3","v2.6.16-rc2","v2.6.16-rc1","v2.6.15-rc7","v2.6.15-rc5","v2.6.15-rc4","v2.6.15-rc2","v2.6.15-rc1","v2.6.14-rc3","v2.6.14-rc2","v2.6.14-rc1","v2.6.13","v2.6.13-rc7","v2.6.13-rc6","v2.6.13-rc5","v2.6.13-rc3","v2.6.13-rc4","v2.6.13-rc2","v2.6.13-rc1","v2.6.12-rc4","v2.6.12-rc3","v2.6.12-rc2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63827.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.177"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.144"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.95"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.38"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63827.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}