{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43353","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-01T14:12:56.005Z","datePublished":"2026-05-08T14:21:10.282Z","dateUpdated":"2026-05-11T22:22:56.101Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:22:56.101Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: mipi-i3c-hci: Fix race in DMA ring dequeue\n\nThe HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for\nmultiple transfers that timeout around the same time.  However, the\nfunction is not serialized and can race with itself.\n\nWhen a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes\nincomplete transfers, and then restarts the ring.  If another timeout\ntriggers a parallel call into the same function, the two instances may\ninterfere with each other - stopping or restarting the ring at unexpected\ntimes.\n\nAdd a mutex so that hci_dma_dequeue_xfer() is serialized with respect to\nitself."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i3c/master/mipi-i3c-hci/core.c","drivers/i3c/master/mipi-i3c-hci/dma.c","drivers/i3c/master/mipi-i3c-hci/hci.h"],"versions":[{"version":"9ad9a52cce2828d932ae9495181e3d6414f72c07","lessThan":"b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e","status":"affected","versionType":"git"},{"version":"9ad9a52cce2828d932ae9495181e3d6414f72c07","lessThan":"4faa1e9c67a2229f6749190aedaf88ce0391efd2","status":"affected","versionType":"git"},{"version":"9ad9a52cce2828d932ae9495181e3d6414f72c07","lessThan":"1dca8aee80eea76d2aae21265de5dd64f6ba0f09","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/i3c/master/mipi-i3c-hci/core.c","drivers/i3c/master/mipi-i3c-hci/dma.c","drivers/i3c/master/mipi-i3c-hci/hci.h"],"versions":[{"version":"5.11","status":"affected"},{"version":"0","lessThan":"5.11","status":"unaffected","versionType":"semver"},{"version":"6.18.19","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.9","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","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":"5.11","versionEndExcluding":"6.18.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.19.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e"},{"url":"https://git.kernel.org/stable/c/4faa1e9c67a2229f6749190aedaf88ce0391efd2"},{"url":"https://git.kernel.org/stable/c/1dca8aee80eea76d2aae21265de5dd64f6ba0f09"}],"title":"i3c: mipi-i3c-hci: Fix race in DMA ring dequeue","x_generator":{"engine":"bippy-1.2.0"}}}}