{"id":"CVE-2026-98903","revision":null,"records":[{"revision":"a0dd779b8b4c4497a9627b13aef71b9a","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-98903","aliases":[],"title":"mailbox: imx: Add a channel shutdown field","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: imx: Add a channel shutdown field\n\nsashiko complained about possible teardown problem. The scenario\n\n CPU 0 CPU 1\n imx_mu_isr() imx_mu_shutdown()\n imx_mu_xcr_rmw(priv, IMX_MU_RCR, 0, IMX_MU_xCR_RIEn(priv->dcfg->type, cp->idx));\n imx_mu_specific_rx()\n imx_mu_xcr_rmw(priv, IMX_MU_RCR, IMX_MU_xCR_RIEn(priv->dcfg->type, 0), 0);\n free_irq()\n\nThe RX event remains enabled because in this short window the RX event\nwas disabled in ->shutdown() while the interrupt was active and then\nenabled again by the ISR while ->shutdown waited in free_irq().\n\nThis race requires timing and if happens can be problematic on shared\nhandlers if the \"removed\" channel triggers an interrupt. In this case\nthe irq-core will shutdown the interrupt with the \"nobody cared\"\nmessage.\n\nIntroduce imx_mu_con_priv::shutdown to signal that the channel is\nshutting down. This flag is set with the lock held (by\nimx_mu_xcr_clr_shut()). The unmask side uses imx_mu_xcr_set_act() which\nonly enables the event if the channel has not been shutdown and\nserialises on the same lock.","state":0,"publishedAt":"2026-10-23T11:54:15.01+00:00","modifiedAt":"2026-10-23T11:54:15.01+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/mailbox/imx-mailbox.c\"\n ],\n \"versions\": [\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"02273054b2e94e53065ea5644265bb9d8f7ee2a7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"944d8509c2220a2313d4a094a646507929fb6f8d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"5ccea7eacb7786c358833634f45700365f6c1d99\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.12.111\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.18.53\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\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/mailbox/imx-mailbox.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.12.111\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.53\",\n \"lessThanOrEqual\": \"6.18.*\",\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":[],"references":["https://git.kernel.org/stable/c/02273054b2e94e53065ea5644265bb9d8f7ee2a7","https://git.kernel.org/stable/c/944d8509c2220a2313d4a094a646507929fb6f8d","https://git.kernel.org/stable/c/5ccea7eacb7786c358833634f45700365f6c1d99"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98903","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98903","identifiers":["CVE-2026-98903"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-24T10:27:30.8908525+00:00","complete":true,"records":1756,"lastAttemptAt":"2026-10-24T10:27:30.8908525+00:00","lastSuccessAt":"2026-10-24T10:27:31.1285633+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:31.1285641+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-9b3cad78792c7367da03684feab05819ddebc4d137048bdbbdabdbb4d2879391-c6a8234687801ee57ab2aeb77d20947f334a6cc2941ea8b25213d5a7dcebf0ce","complete":true,"records":413884,"lastAttemptAt":"2026-10-24T10:27:30.7016219+00:00","lastSuccessAt":"2026-10-24T10:27:30.6836858+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:30.7016219+00:00","snapshotPublishedAt":"2026-10-24T10:24:24+00:00","importing":false,"stagedRecords":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-24T10:27:30.8908525+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-24T10:27:30.8908525+00:00","lastSuccessAt":"2026-10-24T10:27:31.3689689+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:31.3689698+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-16ad89dfea13ab9e9b0108e63a759d63bd4559cc68b58491107d62ee35bbbaf2","complete":true,"records":1965,"lastAttemptAt":"2026-10-24T10:27:30.7587662+00:00","lastSuccessAt":"2026-10-23T16:01:26.4487605+00:00","error":null,"lastVerifiedAt":"2026-10-24T10:27:30.7587662+00:00","snapshotPublishedAt":"2026-10-21T12:18:07+00:00","importing":false,"stagedRecords":0}]}