{"id":"CVE-2026-74706","summary":"bnge: Fix NULL pointer dereference in aux device release","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnge: Fix NULL pointer dereference in aux device release\n\nIf allocation of auxr_dev fails during auxiliary device setup, the error\npath calls auxiliary_device_uninit(), which eventually invokes\nbnge_aux_dev_release().\n\nThe release callback unconditionally dereferences aux_priv-\u003eauxr_dev-\u003epdev\nto retrieve the parent bnge_dev. Since auxr_dev has not yet been allocated\non this failure path, the dereference results in a NULL pointer exception\n\nRetrieve the parent bnge_dev from the auxiliary device's parent instead of\nauxr_dev, and free auxr_dev only when it was successfully allocated. This\nallows the release callback to correctly clean up partially initialized\nauxiliary devices.","modified":"2026-08-24T11:47:18.046738140Z","published":"2026-08-22T15:33:04.723Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74706.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1cb4298810e27e037d3ca07286ecbb97e89ba58d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83ef2f3cab7fe6dd9155cd598dc64be524d963a9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74706.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74706"},{"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":"8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554"},{"fixed":"83ef2f3cab7fe6dd9155cd598dc64be524d963a9"},{"fixed":"1cb4298810e27e037d3ca07286ecbb97e89ba58d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74706.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74706.json"}}],"schema_version":"1.9.0"}