{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-35991","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-17T13:50:33.146Z","datePublished":"2024-05-20T09:47:56.401Z","dateUpdated":"2025-05-04T09:10:03.849Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:10:03.849Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Convert spinlock to mutex to lock evl workqueue\n\ndrain_workqueue() cannot be called safely in a spinlocked context due to\npossible task rescheduling. In the multi-task scenario, calling\nqueue_work() while drain_workqueue() will lead to a Call Trace as\npushing a work on a draining workqueue is not permitted in spinlocked\ncontext.\n    Call Trace:\n    <TASK>\n    ? __warn+0x7d/0x140\n    ? __queue_work+0x2b2/0x440\n    ? report_bug+0x1f8/0x200\n    ? handle_bug+0x3c/0x70\n    ? exc_invalid_op+0x18/0x70\n    ? asm_exc_invalid_op+0x1a/0x20\n    ? __queue_work+0x2b2/0x440\n    queue_work_on+0x28/0x30\n    idxd_misc_thread+0x303/0x5a0 [idxd]\n    ? __schedule+0x369/0xb40\n    ? __pfx_irq_thread_fn+0x10/0x10\n    ? irq_thread+0xbc/0x1b0\n    irq_thread_fn+0x21/0x70\n    irq_thread+0x102/0x1b0\n    ? preempt_count_add+0x74/0xa0\n    ? __pfx_irq_thread_dtor+0x10/0x10\n    ? __pfx_irq_thread+0x10/0x10\n    kthread+0x103/0x140\n    ? __pfx_kthread+0x10/0x10\n    ret_from_fork+0x31/0x50\n    ? __pfx_kthread+0x10/0x10\n    ret_from_fork_asm+0x1b/0x30\n    </TASK>\n\nThe current implementation uses a spinlock to protect event log workqueue\nand will lead to the Call Trace due to potential task rescheduling.\n\nTo address the locking issue, convert the spinlock to mutex, allowing\nthe drain_workqueue() to be called in a safe mutex-locked context.\n\nThis change ensures proper synchronization when accessing the event log\nworkqueue, preventing potential Call Trace and improving the overall\nrobustness of the code."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/idxd/cdev.c","drivers/dma/idxd/debugfs.c","drivers/dma/idxd/device.c","drivers/dma/idxd/idxd.h","drivers/dma/idxd/init.c","drivers/dma/idxd/irq.c"],"versions":[{"version":"c40bd7d9737bdcfb02d42765bc6c59b338151123","lessThan":"758071a35d9f3ffd84ff12169d081412a2f5f098","status":"affected","versionType":"git"},{"version":"c40bd7d9737bdcfb02d42765bc6c59b338151123","lessThan":"c9b732a9f73eadc638abdcf0a6d39bc7a0c1af5f","status":"affected","versionType":"git"},{"version":"c40bd7d9737bdcfb02d42765bc6c59b338151123","lessThan":"d5638de827cff0fce77007e426ec0ffdedf68a44","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/dma/idxd/cdev.c","drivers/dma/idxd/debugfs.c","drivers/dma/idxd/device.c","drivers/dma/idxd/idxd.h","drivers/dma/idxd/init.c","drivers/dma/idxd/irq.c"],"versions":[{"version":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","status":"unaffected","versionType":"semver"},{"version":"6.6.30","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.8.9","lessThanOrEqual":"6.8.*","status":"unaffected","versionType":"semver"},{"version":"6.9","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":"6.4","versionEndExcluding":"6.6.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.8.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/758071a35d9f3ffd84ff12169d081412a2f5f098"},{"url":"https://git.kernel.org/stable/c/c9b732a9f73eadc638abdcf0a6d39bc7a0c1af5f"},{"url":"https://git.kernel.org/stable/c/d5638de827cff0fce77007e426ec0ffdedf68a44"}],"title":"dmaengine: idxd: Convert spinlock to mutex to lock evl workqueue","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-35991","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-20T17:22:23.685967Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:34:50.056Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T03:30:12.585Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/758071a35d9f3ffd84ff12169d081412a2f5f098","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c9b732a9f73eadc638abdcf0a6d39bc7a0c1af5f","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d5638de827cff0fce77007e426ec0ffdedf68a44","tags":["x_transferred"]}]}]}}