{"id":"CVE-2026-89636","summary":"smb: client: clear ce-\u003etgthint in free_tgts()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: clear ce-\u003etgthint in free_tgts()\n\nWhen free_tgts() frees all structures in ce-\u003etlist, ce-\u003etgthint\nis left pointing to one of the freed cache_dfs_tgt structures.\n\nIf ce-\u003etgthint is not reset before it is used later, it results\nin a use-after-free.\n\nSet ce-\u003etgthint to NULL in free_tgts() after the elements are\nfreed to reflect that no elements remain.","modified":"2026-09-25T18:27:18.491706100Z","published":"2026-09-11T19:45:30.283Z","related":["openSUSE-SU-2026:11880-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89636.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/14f60e959b5ac813715ff72e127beb3584ddabf6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3ff9462bb7a06d8d32a1dc02d39580b078ec9e55"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5baab40404a9393bcc0b7b8f1950bf2c307e0984"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7507bd1885643d0461a6017767492450af1ce2a3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9ab46a13798a61d9d020b01d4e57efdabe6624fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b1b741cf8e7ce1b91d937e23decd3d3358748700"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89636.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89636"},{"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":"54be1f6c1c37498bba557049df646cc239fa37e3"},{"fixed":"14f60e959b5ac813715ff72e127beb3584ddabf6"},{"fixed":"3ff9462bb7a06d8d32a1dc02d39580b078ec9e55"},{"fixed":"7507bd1885643d0461a6017767492450af1ce2a3"},{"fixed":"9ab46a13798a61d9d020b01d4e57efdabe6624fa"},{"fixed":"5baab40404a9393bcc0b7b8f1950bf2c307e0984"},{"fixed":"b1b741cf8e7ce1b91d937e23decd3d3358748700"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-89636.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.109"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.50"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-89636.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}