{"api_version":"1","generated_at":"2026-10-19T19:12:25+00:00","cve":"CVE-2026-98656","urls":{"html":"https://cve.report/CVE-2026-98656","api":"https://cve.report/api/cve/CVE-2026-98656.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98656","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98656"},"summary":{"title":"iio: trigger: cancel reenable_work before freeing trigger","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: trigger: cancel reenable_work before freeing trigger\n\niio_trigger_notify_done_atomic() defers ->reenable() into\ntrig->reenable_work on the system workqueue, and the worker dereferences\nthe owning trigger through container_of().  Nothing cancels this work\nbefore iio_trig_release() frees the trigger, so a worker armed by the\nlast in-flight IRQ can outlive the free and touch freed memory.\n\nCancel it at the top of iio_trig_release(), which every free path\nreaches through the device core's final put_device().\n\nFound by an in-house static analysis tool.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:18","updated_at":"2026-10-19 10:19:30"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad","name":"https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c","name":"https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18","name":"https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e","name":"https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98656","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98656","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9020ef659885f2622cfb386cc229b6d618362895 cf513df1a2c75566cdc802d9da47f62e8d6cfd18 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9020ef659885f2622cfb386cc229b6d618362895 e64703280ce7a23a43c27efebeb7da457c88bf5c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9020ef659885f2622cfb386cc229b6d618362895 882d0011c59ff8ac15188ec9ce071399ecfa10ad git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9020ef659885f2622cfb386cc229b6d618362895 2a57b9246cecd5dd797a42eb310d6c8816f26d9e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a18aeac73c0f692ba40964f5f56e182312ae843b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2c5c948451d57596640b20887b06b523d376eb24 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15.17 5.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.16.3 5.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.56 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.10 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iio/industrialio-trigger.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"cf513df1a2c75566cdc802d9da47f62e8d6cfd18","status":"affected","version":"9020ef659885f2622cfb386cc229b6d618362895","versionType":"git"},{"lessThan":"e64703280ce7a23a43c27efebeb7da457c88bf5c","status":"affected","version":"9020ef659885f2622cfb386cc229b6d618362895","versionType":"git"},{"lessThan":"882d0011c59ff8ac15188ec9ce071399ecfa10ad","status":"affected","version":"9020ef659885f2622cfb386cc229b6d618362895","versionType":"git"},{"lessThan":"2a57b9246cecd5dd797a42eb310d6c8816f26d9e","status":"affected","version":"9020ef659885f2622cfb386cc229b6d618362895","versionType":"git"},{"status":"affected","version":"a18aeac73c0f692ba40964f5f56e182312ae843b","versionType":"git"},{"status":"affected","version":"2c5c948451d57596640b20887b06b523d376eb24","versionType":"git"},{"lessThan":"5.16","status":"affected","version":"5.15.17","versionType":"semver"},{"lessThan":"5.17","status":"affected","version":"5.16.3","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iio/industrialio-trigger.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.56","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.56","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.10","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: trigger: cancel reenable_work before freeing trigger\n\niio_trigger_notify_done_atomic() defers ->reenable() into\ntrig->reenable_work on the system workqueue, and the worker dereferences\nthe owning trigger through container_of().  Nothing cancels this work\nbefore iio_trig_release() frees the trigger, so a worker armed by the\nlast in-flight IRQ can outlive the free and touch freed memory.\n\nCancel it at the top of iio_trig_release(), which every free path\nreaches through the device core's final put_device().\n\nFound by an in-house static analysis tool."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:23:24.548Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18"},{"url":"https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c"},{"url":"https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad"},{"url":"https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e"}],"title":"iio: trigger: cancel reenable_work before freeing trigger","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98656","datePublished":"2026-10-18T15:44:07.883Z","dateReserved":"2026-09-25T10:25:14.362Z","dateUpdated":"2026-10-19T09:23:24.548Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:18","lastModifiedDate":"2026-10-19 10:19:30","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98656","Ordinal":"1","Title":"iio: trigger: cancel reenable_work before freeing trigger","CVE":"CVE-2026-98656","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98656","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: trigger: cancel reenable_work before freeing trigger\n\niio_trigger_notify_done_atomic() defers ->reenable() into\ntrig->reenable_work on the system workqueue, and the worker dereferences\nthe owning trigger through container_of().  Nothing cancels this work\nbefore iio_trig_release() frees the trigger, so a worker armed by the\nlast in-flight IRQ can outlive the free and touch freed memory.\n\nCancel it at the top of iio_trig_release(), which every free path\nreaches through the device core's final put_device().\n\nFound by an in-house static analysis tool.","Type":"Description","Title":"iio: trigger: cancel reenable_work before freeing trigger"}]}}}