{"id":"CVE-2026-68317","summary":"pds_core: fix auxiliary device add/del races","details":"In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: fix auxiliary device add/del races\n\nTwo paths add or delete the same slot (pf-\u003evfs[vf_id].padev): a VF's\npdsc_reset_done() and the PF's devlink enable_vnet/disable_vnet handler.\nThey serialize on config_lock, but neither guards the slot under it\ncorrectly.\n\nadd() registers and stores a new auxiliary device without first checking\nthe slot, so a second add of an already-populated slot leaks the first\ndevice. del() makes that check outside config_lock, so two concurrent\ndels can both pass it; the first clears the slot, and the second\ndereferences a NULL pointer.\n\nCheck and update the slot under config_lock in both paths.","modified":"2026-10-28T02:30:59.306000692Z","published":"2026-08-10T12:02:52.185Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68317.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/646b58b543f3bb1641e9123b75ff7799fe7b42f1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bfa33cd513c7ceb93c5a4c30e5662acd73c0a916"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ef194751fed50cf3452017b63f00142a0ab40c70"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68317.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68317"},{"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":"0861fccd43b8bafb533d97308862d20b7db3a2ad"},{"fixed":"646b58b543f3bb1641e9123b75ff7799fe7b42f1"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f41e27b746241e57d968d1d61c008322338ca258"},{"fixed":"ef194751fed50cf3452017b63f00142a0ab40c70"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b699bdc720c0255d1bb76cecba7382c1f2107af5"},{"fixed":"cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518"},{"fixed":"bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454"},{"fixed":"bfa33cd513c7ceb93c5a4c30e5662acd73c0a916"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.6.90"},{"fixed":"6.6.148"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.28"},{"fixed":"6.12.101"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.14.6"},{"fixed":"6.15"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fec5f7af1d5f64a38f9224cd27b274d1af55a7ed"}]}],"versions":["v6.6.147","v6.6.146","v6.6.145","v6.6.144","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","v6.6.129","v6.6.128","v6.6.127","v6.6.126","v6.6.125","v6.6.124","v6.6.123","v6.6.122","v6.6.121","v6.6.120","v6.6.119","v6.6.118","v6.6.117","v6.6.116","v6.6.115","v6.6.114","v6.6.113","v6.6.112","v6.6.111","v6.6.110","v6.6.109","v6.6.108","v6.6.107","v6.6.106","v6.6.105","v6.6.104","v6.6.103","v6.6.102","v6.6.101","v6.6.100","v6.6.99","v6.6.98","v6.6.97","v6.6.96","v6.6.95","v6.6.94","v6.6.93","v6.6.92","v6.6.91","v6.6.90","v6.12.100","v6.12.99","v6.12.98","v6.12.97","v6.12.96","v6.12.95","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","v6.12.76","v6.12.75","v6.12.74","v6.12.73","v6.12.72","v6.12.71","v6.12.70","v6.12.69","v6.12.68","v6.12.67","v6.12.66","v6.12.65","v6.12.64","v6.12.63","v6.12.62","v6.12.61","v6.12.60","v6.12.59","v6.12.58","v6.12.57","v6.12.56","v6.12.55","v6.12.54","v6.12.53","v6.12.52","v6.12.51","v6.12.50","v6.12.49","v6.12.48","v6.12.47","v6.12.46","v6.12.45","v6.12.44","v6.12.43","v6.12.42","v6.12.41","v6.12.40","v6.12.39","v6.12.38","v6.12.37","v6.12.36","v6.12.35","v6.12.34","v6.12.33","v6.12.32","v6.12.31","v6.12.30","v6.12.29","v6.12.28","v6.14.11","v6.14.10","v6.14.9","v6.14.8","v6.14.7","v6.14.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68317.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.148"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.101"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.15.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68317.json"}}],"schema_version":"1.9.2"}