{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64500","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T15:36:31.793Z","datePublished":"2026-07-25T08:51:56.053Z","dateUpdated":"2026-08-17T04:56:49.966Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T04:56:49.966Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: lpc32xx: Initialize completion before requesting IRQ\n\nIn the report from Jaeyoung Chung:\n\n\"lpc32xx_adc_probe() in drivers/iio/adc/lpc32xx_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 lpc32xx_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, lpc32xx_adc_isr, 0,\n                              LPC32XXAD_NAME, st);           /* register handler */\n    ...\n    init_completion(&st->completion);                       /* initialize completion */\n\nlpc32xx_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()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/adc/lpc32xx_adc.c"],"versions":[{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"7090c0d29708ee305022d0ea7b37612b33242fa2","status":"affected","versionType":"git"},{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"0e33587967b356519aa6f220b5b43c6976320397","status":"affected","versionType":"git"},{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cd","status":"affected","versionType":"git"},{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"820c4f15353efe9a9429ae86ccceeaf4e0e4e585","status":"affected","versionType":"git"},{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"48eccc6caed4e62c0f199ab3a3772fa969cd3b2d","status":"affected","versionType":"git"},{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"9e2e8b8cdfd37ae7c7a8a5c96c59e98a768731c4","status":"affected","versionType":"git"},{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"2f18c5551aa97ca7f39dbb151c67c9053ccadc17","status":"affected","versionType":"git"},{"version":"7901b2a1453e48c9defff2c97c67d3089bf4df7a","lessThan":"e561b35633f450ee607e87a6401d97f156a0cd54","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/adc/lpc32xx_adc.c"],"versions":[{"version":"4.12","status":"affected"},{"version":"0","lessThan":"4.12","status":"unaffected","versionType":"semver"},{"version":"5.10.261","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.212","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.96","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.39","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.4","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"4.12","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.12.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/7090c0d29708ee305022d0ea7b37612b33242fa2"},{"url":"https://git.kernel.org/stable/c/0e33587967b356519aa6f220b5b43c6976320397"},{"url":"https://git.kernel.org/stable/c/1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cd"},{"url":"https://git.kernel.org/stable/c/820c4f15353efe9a9429ae86ccceeaf4e0e4e585"},{"url":"https://git.kernel.org/stable/c/48eccc6caed4e62c0f199ab3a3772fa969cd3b2d"},{"url":"https://git.kernel.org/stable/c/9e2e8b8cdfd37ae7c7a8a5c96c59e98a768731c4"},{"url":"https://git.kernel.org/stable/c/2f18c5551aa97ca7f39dbb151c67c9053ccadc17"},{"url":"https://git.kernel.org/stable/c/e561b35633f450ee607e87a6401d97f156a0cd54"}],"title":"iio: adc: lpc32xx: Initialize completion before requesting IRQ","x_generator":{"engine":"bippy-1.2.0"}}}}