{"id":"CVE-2026-64597","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-64597","summary":"smb: client: fix double-free in SMB2_close() replay","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix double-free in SMB2_close() replay\n\nA response-bearing attempt can return a replayable error and free its\nresponse buffer. If SMB2_close_init() fails before the next send, cleanup\nretains the previous buffer type and frees that response again.\n\nReset response bookkeeping before each attempt to prevent the stale free.","published":"2026-08-06T07:13:52.117Z","modified":"2026-08-08T03:32:31.648781672Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.6.145"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/037511726228aaf165c7067ff2bfc88eaecdf1f3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0aa97edf7c347c0f54e7e60c4740574b8120c66a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b18ed621dbfceecea5539848cddcb9272c9a61e1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d15d83125007f673aec4323e1bbbaaffbe87ea13"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f96e1cdcb63ed3321142ff2fcdf784e32cda8fee"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64597.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64597"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:32:31.648781672Z"}}