{"id":"CVE-2026-98587","summary":"firewire: cdev: fix back-transition for iso_resource_auto client resource","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: cdev: fix back-transition for iso_resource_auto client resource\n\nThe todo member of iso_resource_auto structure represents the state of the\nclient resource and normally transitions in the following order:\n\n    ISO_RES_AUTO_ALLOC -\u003e ISO_RES_AUTO_REALLOC -\u003e ISO_RES_AUTO_DEALLOC\n\nHowever, concurrent access from the work item and the file descriptor\nrelease function can cause the state to transition backwards from\nISO_RES_AUTO_DEALLOC to ISO_RES_AUTO_REALLOC.\n\nPrevent the back-transition by checking the current state before\nupdating it in the work item.","modified":"2026-10-19T02:46:45.813714566Z","published":"2026-10-18T15:19:00.077Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98587.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c6b51091cafff9ce6c03c1416aa13864d17ab97c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ee1df60a0d0e8ab4b00137135733bdadd6d33dab"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98587.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98587"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fcabbf40fae501379b4f3a057febe92d4b0ebdd8"},{"fixed":"ee1df60a0d0e8ab4b00137135733bdadd6d33dab"},{"fixed":"c6b51091cafff9ce6c03c1416aa13864d17ab97c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98587.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.2.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98587.json"}}],"schema_version":"1.9.0"}