{"api_version":"1","generated_at":"2026-08-06T14:12:50+00:00","cve":"CVE-2026-64602","urls":{"html":"https://cve.report/CVE-2026-64602","api":"https://cve.report/api/cve/CVE-2026-64602.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64602","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64602"},"summary":{"title":"iio: adc: spear: Initialize completion before requesting IRQ","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: spear: Initialize completion before requesting IRQ\n\nIn the report from Jaeyoung Chung:\n\n\"spear_adc_probe() in drivers/iio/adc/spear_adc.c registers its\ninterrupt handler with devm_request_irq() before it initializes\nst->completion with init_completion(). If an interrupt arrives after\ndevm_request_irq() and before init_completion(), the handler calls\ncomplete() on an uninitialized completion, causing a kernel panic.\n\nThe probe path, in spear_adc_probe():\n\n    iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); /* st kzalloc-zeroed */\n    ...\n    retval = devm_request_irq(&pdev->dev, irq, spear_adc_isr, 0,\n                              LPC32XXAD_NAME, st);           /* register handler */\n    ...\n    init_completion(&st->completion);                       /* initialize completion */\n\nspear_adc_isr() calls complete():\n\n    complete(&st->completion);\n\nIf the device raises an interrupt before init_completion() runs,\ncomplete() acquires the uninitialized wait.lock and walks the zeroed\ntask_list in swake_up_locked(). The zeroed task_list makes list_empty()\nreturn false, so swake_up_locked() dereferences a NULL list entry,\ntriggering a KASAN wild-memory-access.\"\n\nFix the chance of a spurious IRQ causing an uninitialized pointer\ndereference by moving init_completion() above devm_request_irq().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-06 08:16:35","updated_at":"2026-08-06 08:16:35"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/aea8ae6c4d3ed58d9223360f758df6bd8b90c608","name":"https://git.kernel.org/stable/c/aea8ae6c4d3ed58d9223360f758df6bd8b90c608","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0","name":"https://git.kernel.org/stable/c/3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/37077d8271b1f24894fbc21bca1c4cd337525d31","name":"https://git.kernel.org/stable/c/37077d8271b1f24894fbc21bca1c4cd337525d31","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/67a49ab41320b3f721ce4be7447754ff040acbd5","name":"https://git.kernel.org/stable/c/67a49ab41320b3f721ce4be7447754ff040acbd5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4","name":"https://git.kernel.org/stable/c/eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bbfebae473ac2c8a194523b29ccb9b45f02f134c","name":"https://git.kernel.org/stable/c/bbfebae473ac2c8a194523b29ccb9b45f02f134c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a50757398794aaa25f908b96c6733e045466cba4","name":"https://git.kernel.org/stable/c/a50757398794aaa25f908b96c6733e045466cba4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f3f90bc7b38ba3ff14f131cea0f8eb77624787a8","name":"https://git.kernel.org/stable/c/f3f90bc7b38ba3ff14f131cea0f8eb77624787a8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64602","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64602","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed aea8ae6c4d3ed58d9223360f758df6bd8b90c608 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed 67a49ab41320b3f721ce4be7447754ff040acbd5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed a50757398794aaa25f908b96c6733e045466cba4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed f3f90bc7b38ba3ff14f131cea0f8eb77624787a8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed 37077d8271b1f24894fbc21bca1c4cd337525d31 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed bbfebae473ac2c8a194523b29ccb9b45f02f134c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed 3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.261 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc3 * 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/adc/spear_adc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"aea8ae6c4d3ed58d9223360f758df6bd8b90c608","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"},{"lessThan":"67a49ab41320b3f721ce4be7447754ff040acbd5","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"},{"lessThan":"a50757398794aaa25f908b96c6733e045466cba4","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"},{"lessThan":"f3f90bc7b38ba3ff14f131cea0f8eb77624787a8","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"},{"lessThan":"37077d8271b1f24894fbc21bca1c4cd337525d31","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"},{"lessThan":"bbfebae473ac2c8a194523b29ccb9b45f02f134c","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"},{"lessThan":"eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"},{"lessThan":"3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0","status":"affected","version":"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iio/adc/spear_adc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.16"},{"lessThan":"3.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"3.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: spear: Initialize completion before requesting IRQ\n\nIn the report from Jaeyoung Chung:\n\n\"spear_adc_probe() in drivers/iio/adc/spear_adc.c registers its\ninterrupt handler with devm_request_irq() before it initializes\nst->completion with init_completion(). If an interrupt arrives after\ndevm_request_irq() and before init_completion(), the handler calls\ncomplete() on an uninitialized completion, causing a kernel panic.\n\nThe probe path, in spear_adc_probe():\n\n    iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); /* st kzalloc-zeroed */\n    ...\n    retval = devm_request_irq(&pdev->dev, irq, spear_adc_isr, 0,\n                              LPC32XXAD_NAME, st);           /* register handler */\n    ...\n    init_completion(&st->completion);                       /* initialize completion */\n\nspear_adc_isr() calls complete():\n\n    complete(&st->completion);\n\nIf the device raises an interrupt before init_completion() runs,\ncomplete() acquires the uninitialized wait.lock and walks the zeroed\ntask_list in swake_up_locked(). The zeroed task_list makes list_empty()\nreturn false, so swake_up_locked() dereferences a NULL list entry,\ntriggering a KASAN wild-memory-access.\"\n\nFix the chance of a spurious IRQ causing an uninitialized pointer\ndereference by moving init_completion() above devm_request_irq()."}],"providerMetadata":{"dateUpdated":"2026-08-06T07:13:54.519Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/aea8ae6c4d3ed58d9223360f758df6bd8b90c608"},{"url":"https://git.kernel.org/stable/c/67a49ab41320b3f721ce4be7447754ff040acbd5"},{"url":"https://git.kernel.org/stable/c/a50757398794aaa25f908b96c6733e045466cba4"},{"url":"https://git.kernel.org/stable/c/f3f90bc7b38ba3ff14f131cea0f8eb77624787a8"},{"url":"https://git.kernel.org/stable/c/37077d8271b1f24894fbc21bca1c4cd337525d31"},{"url":"https://git.kernel.org/stable/c/bbfebae473ac2c8a194523b29ccb9b45f02f134c"},{"url":"https://git.kernel.org/stable/c/eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4"},{"url":"https://git.kernel.org/stable/c/3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0"}],"title":"iio: adc: spear: Initialize completion before requesting IRQ","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64602","datePublished":"2026-08-06T07:13:54.519Z","dateReserved":"2026-07-19T15:36:31.799Z","dateUpdated":"2026-08-06T07:13:54.519Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-06 08:16:35","lastModifiedDate":"2026-08-06 08:16:35","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64602","Ordinal":"1","Title":"iio: adc: spear: Initialize completion before requesting IRQ","CVE":"CVE-2026-64602","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64602","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: spear: Initialize completion before requesting IRQ\n\nIn the report from Jaeyoung Chung:\n\n\"spear_adc_probe() in drivers/iio/adc/spear_adc.c registers its\ninterrupt handler with devm_request_irq() before it initializes\nst->completion with init_completion(). If an interrupt arrives after\ndevm_request_irq() and before init_completion(), the handler calls\ncomplete() on an uninitialized completion, causing a kernel panic.\n\nThe probe path, in spear_adc_probe():\n\n    iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); /* st kzalloc-zeroed */\n    ...\n    retval = devm_request_irq(&pdev->dev, irq, spear_adc_isr, 0,\n                              LPC32XXAD_NAME, st);           /* register handler */\n    ...\n    init_completion(&st->completion);                       /* initialize completion */\n\nspear_adc_isr() calls complete():\n\n    complete(&st->completion);\n\nIf the device raises an interrupt before init_completion() runs,\ncomplete() acquires the uninitialized wait.lock and walks the zeroed\ntask_list in swake_up_locked(). The zeroed task_list makes list_empty()\nreturn false, so swake_up_locked() dereferences a NULL list entry,\ntriggering a KASAN wild-memory-access.\"\n\nFix the chance of a spurious IRQ causing an uninitialized pointer\ndereference by moving init_completion() above devm_request_irq().","Type":"Description","Title":"iio: adc: spear: Initialize completion before requesting IRQ"}]}}}