{"id":"CVE-2026-97409","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fc: Do not cancel requests in io target before it is initialized\n\nA new nvme-fc controller in CONNECTING state sees admin request timeout\nschedules ctrl->ioerr_wor…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fc: Do not cancel requests in io target before it is initialized\n\nA new nvme-fc controller in CONNECTING state sees admin request timeout\nschedules ctrl->ioerr_wor…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 52793d62a696e9188092eb0817fb1219ee5729ff < 5488e2706c58444a24e15773237dcc0bedcd771f","Linux >= 52793d62a696e9188092eb0817fb1219ee5729ff < da930308b4bc24c335574e85ca84ff70a988cf05","Linux >= 52793d62a696e9188092eb0817fb1219ee5729ff < dd39064d2948b14dbe4f364fe4b3c9cfc632cc21","Linux >= 52793d62a696e9188092eb0817fb1219ee5729ff < ee38469f88492df99e1d97f03aa40ecfd218934f","Linux 5.10"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:53.063","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97409","references":[{"url":"https://git.kernel.org/stable/c/5488e2706c58444a24e15773237dcc0bedcd771f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/da930308b4bc24c335574e85ca84ff70a988cf05","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dd39064d2948b14dbe4f364fe4b3c9cfc632cc21","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ee38469f88492df99e1d97f03aa40ecfd218934f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97409.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97409"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540444"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97409"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97409"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97409.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00241,"epssPercentile":0.15218,"ingestedAt":"2026-09-24T16:47:15.888Z","cwe":["CWE-908"],"scores":{"nvd":8.8,"vendor":5.5},"slug":"CVE-2026-97409","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fc: Do not cancel requests in io target before it is initialized\n\nA new nvme-fc controller in CONNECTING state sees admin request timeout\nschedules ctrl->ioerr_work to abort inflight requests. This ends up\ncalling __nvme_fc_abort_outstanding_ios() which aborts requests in both\nadmin and io tagsets. In case fc_ctrl->tag_set was not initialized we\nsee the warning below. This is because ctrl.queue_count is initialized\nearly in nvme_fc_alloc_ctrl().\n\nnvme nvme0: NVME-FC{0}: starting error recovery Connectivity Loss\nINFO: trying to register non-static key.\nThe code is fine but needs lockdep annotation, or maybe\nlpfc 0000:ab:00.0: queue 0 connect admin queue failed (-6).\nyou didn't initialize this object before use?\nturning off the locking correctness validator.\nWorkqueue: nvme-reset-wq nvme_fc_ctrl_ioerr_work [nvme_fc]\nCall Trace:\n <TASK>\n dump_stack_lvl+0x57/0x80\n register_lock_class+0x567/0x580\n __lock_acquire+0x330/0xb90\n lock_acquire.part.0+0xad/0x210\n blk_mq_tagset_busy_iter+0xf9/0xc00\n __nvme_fc_abort_outstanding_ios+0x23f/0x320 [nvme_fc]\n nvme_fc_ctrl_ioerr_work+0x172/0x210 [nvme_fc]\n process_one_work+0x82c/0x1450\n worker_thread+0x5ee/0xfd0\n kthread+0x3a0/0x750\n ret_from_fork+0x439/0x670\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\nUpdate the check in __nvme_fc_abort_outstanding_ios() confirm that io\ntagset was created before iterating over busy requests. Also make sure\nto cancel ctrl->ioerr_work before removing io tagset.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97409.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":210573,"id":"CVE-2026-97409","ts":1790316054891,"field":"cvss","old":null,"new":"8.8"},{"seq":210572,"id":"CVE-2026-97409","ts":1790316054891,"field":"severity","old":"none","new":"high"}]}