{"id":"CVE-2026-68343","summary":"smb: client: validate DFS referral PathConsumed","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: validate DFS referral PathConsumed\n\nparse_dfs_referrals() validates that the response contains the fixed\nreferral entry array and, on for-next, the per-referral string offsets.\nHowever, the response also contains a PathConsumed value that is later\nused for DFS path parsing.\n\nIf a malformed response provides a PathConsumed value larger than the\nsearch name, later DFS parsing can advance beyond the end of the path.\n\nValidate PathConsumed against the search name length before storing it in\nthe parsed referral.","modified":"2026-08-21T03:30:33.757708967Z","published":"2026-08-10T12:03:19.939Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68343.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/285bd4a5f3f156aa5869843b47a1b1380b774241"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2fdd6d196c656b376cc251e1e9ff110b3ed522e1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b439f39f33ec15d319ced3b025e122346fba987"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9f88a99ed511651b2dc2177d6854b2d1b8322e75"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bfebe5110fd135d86d65a0a346e14c106b02028b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f6f5ee2aa33b350c671721b965251c42cebb962e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68343.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68343"},{"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":"4ecce920e13ace16a5ba45efe8909946c28fb2ad"},{"fixed":"bfebe5110fd135d86d65a0a346e14c106b02028b"},{"fixed":"5b439f39f33ec15d319ced3b025e122346fba987"},{"fixed":"285bd4a5f3f156aa5869843b47a1b1380b774241"},{"fixed":"2fdd6d196c656b376cc251e1e9ff110b3ed522e1"},{"fixed":"9f88a99ed511651b2dc2177d6854b2d1b8322e75"},{"fixed":"f6f5ee2aa33b350c671721b965251c42cebb962e"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68343.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.11.0"},{"fixed":"6.1.183"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"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":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68343.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:N/A:H"}]}