{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98656","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.362Z","datePublished":"2026-10-18T15:44:07.883Z","dateUpdated":"2026-10-21T12:55:23.832Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-21T12:55:23.832Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/industrialio-trigger.c"],"versions":[{"version":"9020ef659885f2622cfb386cc229b6d618362895","lessThan":"ac5d26a46c90ff61fd574eff4e8f0d71c905828a","status":"affected","versionType":"git"},{"version":"9020ef659885f2622cfb386cc229b6d618362895","lessThan":"cf513df1a2c75566cdc802d9da47f62e8d6cfd18","status":"affected","versionType":"git"},{"version":"9020ef659885f2622cfb386cc229b6d618362895","lessThan":"e64703280ce7a23a43c27efebeb7da457c88bf5c","status":"affected","versionType":"git"},{"version":"9020ef659885f2622cfb386cc229b6d618362895","lessThan":"882d0011c59ff8ac15188ec9ce071399ecfa10ad","status":"affected","versionType":"git"},{"version":"9020ef659885f2622cfb386cc229b6d618362895","lessThan":"2a57b9246cecd5dd797a42eb310d6c8816f26d9e","status":"affected","versionType":"git"},{"version":"a18aeac73c0f692ba40964f5f56e182312ae843b","status":"affected","versionType":"git"},{"version":"2c5c948451d57596640b20887b06b523d376eb24","status":"affected","versionType":"git"},{"version":"5.15.17","lessThan":"5.16","status":"affected","versionType":"semver"},{"version":"5.16.3","lessThan":"5.17","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/industrialio-trigger.c"],"versions":[{"version":"5.17","status":"affected"},{"version":"0","lessThan":"5.17","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"7.3"},{"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"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ac5d26a46c90ff61fd574eff4e8f0d71c905828a"},{"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"}}}}