{"id":"CVE-2026-90154","state":"PUBLISHED","title":"ksmbd: scope session state changes to bound connections","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: scope session state changes to bound connections\n\nksmbd_all_conn_set_status() treats every connection whose transient\nbinding flag is set as belonging to the target SessionId.  A logoff or\nsession replacement can consequently move an unrelated connection to\nNEED_RECONNECT or NEED_SETUP.\n\nPass the target session itself and select connections using either the\nconnection-local session xarray or the session's permanent channel list.\nUse the same association test while waiting for requests to drain.\n\nSerialize session-wide status changes under request_lock and do not\noverwrite EXITING or RELEASING. Protect the shutdown transition with the\nsame lock so a concurrent session update cannot revive a closing\nconnection.","publishedAt":"2026-09-17T16:06:47.046Z","updatedAt":"2026-10-21T12:50:09.901Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"3deefd5fb1368e2577144b0961b1a5df26b587d1","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"3d66f3ec3c69fa242939a9f9e6815df33390b1bb","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"0875872718b98e8530fbc634e5aa7dbd3253b80d","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"c50e628122aed077695669e25b842e778511a43d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/connection.c","fs/smb/server/connection.h","fs/smb/server/mgmt/user_session.c","fs/smb/server/smb2pdu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/connection.c","fs/smb/server/connection.h","fs/smb/server/mgmt/user_session.c","fs/smb/server/smb2pdu.c"]}],"references":["https://git.kernel.org/stable/c/3deefd5fb1368e2577144b0961b1a5df26b587d1","https://git.kernel.org/stable/c/3d66f3ec3c69fa242939a9f9e6815df33390b1bb","https://git.kernel.org/stable/c/1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b","https://git.kernel.org/stable/c/0875872718b98e8530fbc634e5aa7dbd3253b80d","https://git.kernel.org/stable/c/c50e628122aed077695669e25b842e778511a43d"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90154.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90154","state":"PUBLISHED","datePublished":"2026-09-17T16:06:47.046Z","dateUpdated":"2026-10-21T12:50:09.901Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.789Z"},"containers":{"cna":{"title":"ksmbd: scope session state changes to bound connections","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: scope session state changes to bound connections\n\nksmbd_all_conn_set_status() treats every connection whose transient\nbinding flag is set as belonging to the target SessionId.  A logoff or\nsession replacement can consequently move an unrelated connection to\nNEED_RECONNECT or NEED_SETUP.\n\nPass the target session itself and select connections using either the\nconnection-local session xarray or the session's permanent channel list.\nUse the same association test while waiting for requests to drain.\n\nSerialize session-wide status changes under request_lock and do not\noverwrite EXITING or RELEASING. Protect the shutdown transition with the\nsame lock so a concurrent session update cannot revive a closing\nconnection."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"3deefd5fb1368e2577144b0961b1a5df26b587d1","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"3d66f3ec3c69fa242939a9f9e6815df33390b1bb","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"0875872718b98e8530fbc634e5aa7dbd3253b80d","versionType":"git"},{"version":"f5a544e3bab78142207e0242d22442db85ba1eff","status":"affected","lessThan":"c50e628122aed077695669e25b842e778511a43d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/connection.c","fs/smb/server/connection.h","fs/smb/server/mgmt/user_session.c","fs/smb/server/smb2pdu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/connection.c","fs/smb/server/connection.h","fs/smb/server/mgmt/user_session.c","fs/smb/server/smb2pdu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3deefd5fb1368e2577144b0961b1a5df26b587d1"},{"url":"https://git.kernel.org/stable/c/3d66f3ec3c69fa242939a9f9e6815df33390b1bb"},{"url":"https://git.kernel.org/stable/c/1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b"},{"url":"https://git.kernel.org/stable/c/0875872718b98e8530fbc634e5aa7dbd3253b80d"},{"url":"https://git.kernel.org/stable/c/c50e628122aed077695669e25b842e778511a43d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:50:09.901Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}