{"id":"CVE-2026-99218","aliases":[],"cve":{"records":[{"id":"CVE-2026-99218","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.401Z","published":"2026-11-02T16:06:31.088Z","modified":"2026-11-03T19:12:53.426Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-11-03T19:12:53.426Z"}],"references":[{"url":"https://git.kernel.org/stable/c/fd0fbe84312fda2fc187428c92c50b7d03a9d24c","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/71146c437bae59e5280f657965dc6d006ee3989b","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/0fce73efee40c65ce26641c5d93942462f9e8307","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/16e94ed90b1b02398e044d41fd1db34828daa08e","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/a0f09ff4c6b93312e565cfe75d76c3a551a3ec4c","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/b0eca0edddf4c1dbaf6d1f6a8636b4235f5bc573","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/61d58591aa0188bf2463e263962256316ff8b576","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":"2.6.27","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.6.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.12.115"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.18.60"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"7.2.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"7.3.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"7.4-rc1"}]}]}]}],"prioritization":[]},"title":"coredump: hold RCU while releasing parked threads","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoredump: hold RCU while releasing parked threads\n\ncoredump_finish() releases the parked threads by clearing ->task in\ntheir core_thread entry and calling wake_up_process() on each of them.\nIt does that without holding a reference on the task and without being\ninside rcu.\n\nBut calling wake_up_process(task) without rcu here isn't safe. A parked\nthread doesn't need that wakeup to leave. A spurious wakeup or a\npreemption after the store is enough for the task to go away.\n\nSo if the coredump client is preempted between the store and\nwake_up_process() the thread can exit and be freed in the meantime and\ntry_to_wake_up() takes pi_lock in freed memory.\n\nHold rcu across the loop.","score":7,"severity":"high","published":"2026-11-02T16:06:31.088Z","modified":"2026-11-03T19:12:53.426Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"a94e2d408eaedbd85aae259621d46fafc10479a2","status":"affected","lessThan":"fd0fbe84312fda2fc187428c92c50b7d03a9d24c","versionType":"git"},{"version":"a94e2d408eaedbd85aae259621d46fafc10479a2","status":"affected","lessThan":"71146c437bae59e5280f657965dc6d006ee3989b","versionType":"git"},{"version":"a94e2d408eaedbd85aae259621d46fafc10479a2","status":"affected","lessThan":"0fce73efee40c65ce26641c5d93942462f9e8307","versionType":"git"},{"version":"a94e2d408eaedbd85aae259621d46fafc10479a2","status":"affected","lessThan":"16e94ed90b1b02398e044d41fd1db34828daa08e","versionType":"git"},{"version":"a94e2d408eaedbd85aae259621d46fafc10479a2","status":"affected","lessThan":"a0f09ff4c6b93312e565cfe75d76c3a551a3ec4c","versionType":"git"},{"version":"a94e2d408eaedbd85aae259621d46fafc10479a2","status":"affected","lessThan":"b0eca0edddf4c1dbaf6d1f6a8636b4235f5bc573","versionType":"git"},{"version":"a94e2d408eaedbd85aae259621d46fafc10479a2","status":"affected","lessThan":"61d58591aa0188bf2463e263962256316ff8b576","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99218"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"2.6.27","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.27","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.161","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.115","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.60","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.14","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3.1","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-2026-99218"}],"remediation":[],"references":["https://git.kernel.org/stable/c/fd0fbe84312fda2fc187428c92c50b7d03a9d24c","https://git.kernel.org/stable/c/71146c437bae59e5280f657965dc6d006ee3989b","https://git.kernel.org/stable/c/0fce73efee40c65ce26641c5d93942462f9e8307","https://git.kernel.org/stable/c/16e94ed90b1b02398e044d41fd1db34828daa08e","https://git.kernel.org/stable/c/a0f09ff4c6b93312e565cfe75d76c3a551a3ec4c","https://git.kernel.org/stable/c/b0eca0edddf4c1dbaf6d1f6a8636b4235f5bc573","https://git.kernel.org/stable/c/61d58591aa0188bf2463e263962256316ff8b576"],"sources":[{"name":"CVE","id":"CVE-2026-99218","modified":"2026-11-03T19:12:53.426Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-99218"}],"assessments":[{"source":"Linux","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7}],"sourceAffected":[],"observedAt":"2026-11-03T19:48:15.950Z","kev":{"status":"not-listed","checkedAt":"2026-11-06T21:20:33.816Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-03T09:05:33.155Z","attemptedAt":"2026-11-03T09:05:33.155Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-03T09:05:33.897Z","attemptedAt":"2026-11-03T09:05:33.897Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-03T09:05:33.042Z","attemptedAt":"2026-11-03T09:05:33.042Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-03T09:05:33.261Z","attemptedAt":"2026-11-03T09:05:33.261Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-115260","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-115260","modified":"Nov 2, 2026, 4:06:31 PM","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-03T09:05:33.042Z"},{"source":"NVD","id":"CVE-2026-99218","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99218","modified":"2026-11-02T16:17:45.740","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-03T09:05:33.155Z"},{"source":"GitHub Advisory Database","id":"GHSA-2cpv-4f6v-pr9h","url":"https://github.com/advisories/GHSA-2cpv-4f6v-pr9h","modified":"2026-11-02T18:32:30Z","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-03T09:05:33.897Z"}],"aiSummary":null}