{"id":"CVE-2026-98670","state":"PUBLISHED","title":"iio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind\n\nThe ZYNQ XADC alarm IRQ handler queues zynq_unmask_work via\nschedule_delayed_work(); that work is cleared by a devm callback.\nRegister the devm callback before devm_request_irq() so the devres LIFO\nteardown frees the IRQ first, ensuring the handler can no longer queue\nwork by the time the workqueue is cleared. Otherwise the handler could\nre-arm the work and run it after the xadc structure has been freed.\n\nThis issue was found by an in-house static analysis tool.","publishedAt":"2026-10-18T15:45:14.810Z","updatedAt":"2026-10-30T12:38:37.715Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"7958959ab2a906c04f783a3ffb979c45472ad647","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"012451d72c12293918617ff98cc737bedad21910","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"a29d385ad7b340c952a3935af2b33488db1eb3a6","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"a5fe2d1b55faba6d00fd87ad491b6cb603046304","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"49ea8a359e362bfbb32a647c8eb7962fbb37234e","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"0f3f427076240e75ff265e61645627a71ca4918c","versionType":"git"},{"version":"e96eb8853f334f96312968e4f01c5a452db54c00","status":"affected","versionType":"git"},{"version":"5.10.200","status":"affected","lessThan":"5.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/adc/xilinx-xadc-core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.12","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","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":["drivers/iio/adc/xilinx-xadc-core.c"]}],"references":["https://git.kernel.org/stable/c/7958959ab2a906c04f783a3ffb979c45472ad647","https://git.kernel.org/stable/c/012451d72c12293918617ff98cc737bedad21910","https://git.kernel.org/stable/c/a29d385ad7b340c952a3935af2b33488db1eb3a6","https://git.kernel.org/stable/c/a5fe2d1b55faba6d00fd87ad491b6cb603046304","https://git.kernel.org/stable/c/49ea8a359e362bfbb32a647c8eb7962fbb37234e","https://git.kernel.org/stable/c/0f3f427076240e75ff265e61645627a71ca4918c"],"weaknesses":[],"ingestedAt":"2026-10-30T12:58:04.520Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98670.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98670","state":"PUBLISHED","datePublished":"2026-10-18T15:45:14.810Z","dateUpdated":"2026-10-30T12:38:37.715Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.363Z"},"containers":{"cna":{"title":"iio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: xilinx-xadc: free IRQ before cancelling the unmask worker on unbind\n\nThe ZYNQ XADC alarm IRQ handler queues zynq_unmask_work via\nschedule_delayed_work(); that work is cleared by a devm callback.\nRegister the devm callback before devm_request_irq() so the devres LIFO\nteardown frees the IRQ first, ensuring the handler can no longer queue\nwork by the time the workqueue is cleared. Otherwise the handler could\nre-arm the work and run it after the xadc structure has been freed.\n\nThis issue was found by an in-house static analysis tool."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"7958959ab2a906c04f783a3ffb979c45472ad647","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"012451d72c12293918617ff98cc737bedad21910","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"a29d385ad7b340c952a3935af2b33488db1eb3a6","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"a5fe2d1b55faba6d00fd87ad491b6cb603046304","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"49ea8a359e362bfbb32a647c8eb7962fbb37234e","versionType":"git"},{"version":"2a9685d1a3b7644ca08d8355fc238b43faef7c3e","status":"affected","lessThan":"0f3f427076240e75ff265e61645627a71ca4918c","versionType":"git"},{"version":"e96eb8853f334f96312968e4f01c5a452db54c00","status":"affected","versionType":"git"},{"version":"5.10.200","status":"affected","lessThan":"5.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/adc/xilinx-xadc-core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.12","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","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":["drivers/iio/adc/xilinx-xadc-core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7958959ab2a906c04f783a3ffb979c45472ad647"},{"url":"https://git.kernel.org/stable/c/012451d72c12293918617ff98cc737bedad21910"},{"url":"https://git.kernel.org/stable/c/a29d385ad7b340c952a3935af2b33488db1eb3a6"},{"url":"https://git.kernel.org/stable/c/a5fe2d1b55faba6d00fd87ad491b6cb603046304"},{"url":"https://git.kernel.org/stable/c/49ea8a359e362bfbb32a647c8eb7962fbb37234e"},{"url":"https://git.kernel.org/stable/c/0f3f427076240e75ff265e61645627a71ca4918c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:38:37.715Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"7.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.200"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}