{"id":"CVE-2022-47939","details":"An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c has a use-after-free and OOPS for SMB2_TREE_DISCONNECT.","modified":"2026-05-18T05:55:27.210262532Z","published":"2022-12-23T00:00:00Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/47xxx/CVE-2022-47939.json","unresolved_ranges":[{"extracted_events":[{"fixed":"5.19.2"}],"source":"DESCRIPTION"}],"cna_assigner":"mitre"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2022/12/23/10"},{"type":"WEB","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2"},{"type":"WEB","url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/47xxx/CVE-2022-47939.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-47939"},{"type":"ADVISORY","url":"https://www.zerodayinitiative.com/advisories/ZDI-22-1690/"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223c"},{"type":"ARTICLE","url":"https://www.secpod.com/blog/zero-day-server-message-block-smb-server-in-linux-kernel-5-15-has-a-critical-vulnerability-patch-ksmbd-immediately/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git","events":[{"introduced":"8bb7eca972ad531c9b149c0a51ab43a417385813"},{"fixed":"3d7cb6b04c3f3115719235cc6866b10326de34cd"}],"database_specific":{"extracted_events":[{"introduced":"5.15"},{"fixed":"5.19"}],"source":"DESCRIPTION"}}],"versions":["v5.19-rc1","v5.19-rc5","v5.19-rc8","v5.19-rc6","v5.18","v5.19-rc2","v5.19-rc7","v5.19-rc3","v5.19-rc4","v5.18-rc1","v5.18-rc7","v5.18-rc2","v5.18-rc5","v5.17","v5.18-rc4","v5.18-rc3","v5.18-rc6","v5.17-rc6","v5.17-rc4","v5.17-rc8","v5.17-rc7","v5.17-rc1","v5.17-rc3","v5.17-rc2","v5.17-rc5","v5.16","v5.16-rc1","v5.16-rc8","v5.16-rc5","v5.16-rc6","v5.16-rc7","v5.16-rc3","v5.16-rc2","v5.16-rc4","v5.15"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-47939.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}