{"id":"CVE-2026-72454","revision":null,"records":[{"revision":"3199853f57b34071805ee0ff033cfb8a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72454","aliases":[],"title":"i3c: mipi-i3c-hci: Fix race in i3c_hci_addr_to_dev()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: mipi-i3c-hci: Fix race in i3c_hci_addr_to_dev()\n\ni3c_hci_addr_to_dev() walks bus->devs.i3c, which is protected by\nbus.lock (rwsem).  However, it is invoked from the MIPI I3C HCI IRQ\nhandler, which cannot take bus.lock.  This allows concurrent device\naddition/removal in the I3C core to modify the list while it is being\ntraversed, potentially leading to use-after-free or crashes.\n\nRemove the dependency on the bus device list and introduce a dedicated\nlookup table.  Add an ibi_devs[] array indexed by DAT entry, maintained\nunder hci->lock.  Update the array when IBIs are enabled or disabled,\nso that it always reflects the set of devices allowed to generate IBIs.\nAlso update when IBIs are freed, to cover the corner case when an IBI is\nfreed without first being disabled (e.g. oldedev in\ni3c_master_add_i3c_dev_locked()).\n\nMove i3c_hci_addr_to_dev() into core.c, reimplement it using the new\narray, and add a lockdep assertion to enforce that hci->lock is held\nby callers.\n\nDemote a message in PIO and DMA IBI handling, from an error to a debug\nmessage, because there is a race window when the condition can arise\nnormally.","state":0,"publishedAt":"2026-08-15T05:57:01.558+00:00","modifiedAt":"2026-10-15T10:08:44.758+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/i3c/master/mipi-i3c-hci/core.c\",\n                        \"drivers/i3c/master/mipi-i3c-hci/dma.c\",\n                        \"drivers/i3c/master/mipi-i3c-hci/hci.h\",\n                        \"drivers/i3c/master/mipi-i3c-hci/ibi.h\",\n                        \"drivers/i3c/master/mipi-i3c-hci/pio.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"9ad9a52cce2828d932ae9495181e3d6414f72c07\",\n                            \"lessThan\": \"308d7951ca221e8c8896b563c4e98d28a4400f2e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9ad9a52cce2828d932ae9495181e3d6414f72c07\",\n                            \"lessThan\": \"8f851cab401c28287d536b1347d76f6e219c0db6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9ad9a52cce2828d932ae9495181e3d6414f72c07\",\n                            \"lessThan\": \"650716f23eac488c6696babdc7805f6a6b7427ad\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/i3c/master/mipi-i3c-hci/core.c\",\n                        \"drivers/i3c/master/mipi-i3c-hci/dma.c\",\n                        \"drivers/i3c/master/mipi-i3c-hci/hci.h\",\n                        \"drivers/i3c/master/mipi-i3c-hci/ibi.h\",\n                        \"drivers/i3c/master/mipi-i3c-hci/pio.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/308d7951ca221e8c8896b563c4e98d28a4400f2e","https://git.kernel.org/stable/c/8f851cab401c28287d536b1347d76f6e219c0db6","https://git.kernel.org/stable/c/650716f23eac488c6696babdc7805f6a6b7427ad"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72454","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72454","identifiers":["CVE-2026-72454"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-09T17:05:03.6461191+00:00","complete":true,"records":1772,"lastAttemptAt":"2026-11-09T17:05:03.6461191+00:00","lastSuccessAt":"2026-11-09T17:05:03.8531145+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:05:03.853115+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-24e6fde7b744113daefb8f6135035fb8a5c69c9617c9c0d40574a0376532ffd3-c9cdfc1581e828ba6edad094382347f5c5591d8ad29e4b235259cf3365c4cd4f","complete":true,"records":421470,"lastAttemptAt":"2026-11-09T17:02:16.1896721+00:00","lastSuccessAt":"2026-11-09T17:02:15.8609908+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:02:16.1896721+00:00","snapshotPublishedAt":"2026-11-09T16:22:58+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-473bda92d9f145e4a59d46ab39e596a4","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T17:15:31.9295462+00:00","lastSuccessAt":"2026-11-09T17:15:31.925+00:00","error":"8 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T17:15:31.925+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13381,"expectedIdentifiers":13707,"failedIdentifiers":8},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T17:05:03.6461191+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T17:05:03.6461191+00:00","lastSuccessAt":"2026-11-09T17:05:03.8539711+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:05:03.8539712+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-27d7fc34e294426a8947cddc275fdd88","complete":true,"records":13667,"lastAttemptAt":"2026-11-09T17:05:13.4623818+00:00","lastSuccessAt":"2026-11-09T17:05:13.459+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:05:13.459+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13707,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T17:04:56.7195673+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:04:56.7195673+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T17:02:16.3773977+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:02:16.3773977+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-761ecc9061239b0da572dc9254c6f384c1d19339eb08408c436647a2f26129e9","complete":true,"records":3064,"lastAttemptAt":"2026-11-09T17:05:03.6013858+00:00","lastSuccessAt":"2026-11-09T17:05:03.4044794+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:05:03.6013858+00:00","snapshotPublishedAt":"2026-11-09T16:33:20+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-f8ac1981a68d9f0cc4ed8b05de89035ef9b503c12568a353caa684b6b64f832a","complete":true,"records":231305,"lastAttemptAt":"2026-11-09T17:04:55.1051927+00:00","lastSuccessAt":"2026-11-09T17:04:53.3741561+00:00","error":null,"lastVerifiedAt":"2026-11-09T17:04:55.1051927+00:00","snapshotPublishedAt":"2026-11-09T16:33:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}