{"id":"CVE-2026-99277","aliases":[],"cve":{"records":[{"id":"CVE-2026-99277","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.405Z","published":"2026-11-07T14:08:46.710Z","modified":"2026-11-10T16:57:40.367Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-11-10T16:57:40.367Z"}],"references":[{"url":"https://git.kernel.org/stable/c/4b333aed69cfc2c8687b86b6a4364a0dffc16dd8","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/add8d7fb04efe564193df73581889c62fc0016f1","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.3","versionEndExcluding":"7.3.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.3","versionEndExcluding":"7.4-rc1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.2.8"}]}]}]}],"prioritization":[]},"title":"ksmbd: hold a connection reference for each session channel","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: hold a connection reference for each session channel\n\nksmbd_session_unregister() removes a session from the global and per-\nconnection tables before dropping the table reference. A concurrent\nreference holder can keep the session and its channel list alive after\nthose removals.\n\nConnection cleanup can no longer find the unpublished session to remove its\nchannels. Since a channel only stores a raw conn pointer, the connection\ncan be freed while another session reference holder is still accessing it,\nfor example during SMB3.1.1 binding or a procfs read.\n\nTake a connection reference when registering a channel and release it on\ninsertion failure, channel removal, or final session destruction. Keep the\nchannels and signing keys until the session is destroyed so a response can\nstill be signed after the session has been unregistered.","score":7.5,"severity":"high","published":"2026-11-07T14:08:46.710Z","modified":"2026-11-10T16:57:40.367Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"d7fd1f98607f2cd358e583f9548bdf0173090a86","status":"affected","lessThan":"4b333aed69cfc2c8687b86b6a4364a0dffc16dd8","versionType":"git"},{"version":"d7fd1f98607f2cd358e583f9548bdf0173090a86","status":"affected","lessThan":"add8d7fb04efe564193df73581889c62fc0016f1","versionType":"git"},{"version":"c99ea7855124ca1428a1e59c2b4590aaef34eacf","status":"affected","versionType":"git"},{"version":"7.2.8","status":"affected","lessThan":"7.3","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99277"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"7.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.3","versionType":"semver"},{"version":"7.3.2","status":"unaffected","lessThanOrEqual":"7.3.*","versionType":"semver"},{"version":"7.4-rc1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99277"}],"remediation":[],"references":["https://git.kernel.org/stable/c/4b333aed69cfc2c8687b86b6a4364a0dffc16dd8","https://git.kernel.org/stable/c/add8d7fb04efe564193df73581889c62fc0016f1"],"sources":[{"name":"CVE","id":"CVE-2026-99277","modified":"2026-11-10T16:57:40.367Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-99277"}],"assessments":[{"source":"Linux","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-11-10T17:01:31.283Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T21:30:34.002Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-07T14:40:33.243Z","attemptedAt":"2026-11-07T14:40:33.243Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-07T14:40:32.957Z","attemptedAt":"2026-11-07T14:40:32.957Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-11-07T14:40:32.689Z","attemptedAt":"2026-11-07T14:40:32.689Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-07T14:40:33.213Z","attemptedAt":"2026-11-07T14:40:33.213Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-99277","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99277","modified":"2026-11-07T14:17:03.080","checkedAt":"2026-11-07T14:40:33.243Z"}],"aiSummary":null}