CVE-2026-98587

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98587", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.358Z", "datePublished": "2026-10-18T15:19:00.077Z", "dateUpdated": "2026-10-19T09:22:12.874Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:22:12.874Z"}, "descriptions": [{"lang": "en", "value": "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 -> ISO_RES_AUTO_REALLOC -> 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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/firewire/core-cdev.c"], "versions": [{"version": "fcabbf40fae501379b4f3a057febe92d4b0ebdd8", "lessThan": "ee1df60a0d0e8ab4b00137135733bdadd6d33dab", "status": "affected", "versionType": "git"}, {"version": "fcabbf40fae501379b4f3a057febe92d4b0ebdd8", "lessThan": "c6b51091cafff9ce6c03c1416aa13864d17ab97c", "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/firewire/core-cdev.c"], "versions": [{"version": "7.2", "status": "affected"}, {"version": "0", "lessThan": "7.2", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "7.2", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.2", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ee1df60a0d0e8ab4b00137135733bdadd6d33dab"}, {"url": "https://git.kernel.org/stable/c/c6b51091cafff9ce6c03c1416aa13864d17ab97c"}], "title": "firewire: cdev: fix back-transition for iso_resource_auto client resource", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/firewire/core-cdev.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "ee1df60a0d0e8ab4b00137135733bdadd6d33dab", "status": "affected", "version": "fcabbf40fae501379b4f3a057febe92d4b0ebdd8", "versionType": "git"}, {"lessThan": "c6b51091cafff9ce6c03c1416aa13864d17ab97c", "status": "affected", "version": "fcabbf40fae501379b4f3a057febe92d4b0ebdd8", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/firewire/core-cdev.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.2"}, {"lessThan": "7.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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 -> ISO_RES_AUTO_REALLOC -> 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."}], "id": "CVE-2026-98587", "lastModified": "2026-10-19T10:19:19.660", "metrics": {}, "published": "2026-10-18T16:17:11.297", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c6b51091cafff9ce6c03c1416aa13864d17ab97c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ee1df60a0d0e8ab4b00137135733bdadd6d33dab"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: firewire: cdev: fix back-transition for iso_resource_auto client resource", "id": "2554981", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2554981"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-366", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfirewire: cdev: fix back-transition for iso_resource_auto client resource\nThe todo member of iso_resource_auto structure represents the state of the\nclient resource and normally transitions in the following order:\nISO_RES_AUTO_ALLOC -> ISO_RES_AUTO_REALLOC -> ISO_RES_AUTO_DEALLOC\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.\nPrevent the back-transition by checking the current state before\nupdating it in the work item.", "A flaw was found in the Linux kernel's FireWire subsystem. A local user can trigger a race condition by concurrently releasing a device file descriptor while an asynchronous resource management task is running. This flaw allows a resource state to transition backwards from deallocation to reallocation, leading to inconsistent internal states and a potential Denial of Service (DoS) through a system crash."], "name": "CVE-2026-98587", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98587\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98587\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98587.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fcabbf40fae501379b4f3a057febe92d4b0ebdd8,ee1df60a0d0e8ab4b00137135733bdadd6d33dab)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fcabbf40fae501379b4f3a057febe92d4b0ebdd8,c6b51091cafff9ce6c03c1416aa13864d17ab97c)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-18T23:15:14.327944+00:00", "updated": "2026-10-22T22:00:15.030347+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}