{"id":"CVE-2026-89454","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()\n\nplda_init_interrupts() initializes IRQ domains and creates IRQ mapping but\ndoes not unwind…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()\n\nplda_init_interrupts() initializes IRQ domains and creates IRQ mapping but\ndoes not unwind…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 < 01b05cebe1e862e31e382359848d7dca02525a4f","Linux >= 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 < 4b575052ea65423693726a21826d783cf3f1745e","Linux >= 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 < e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad","Linux >= 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 < 19a30bbb6477bfd7e3109b7a2943e6597ee9de37","Linux 6.11"],"published":"2026-09-11","updated":"2026-09-11","sourceUpdated":"2026-09-11T20:19:26.097","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89454","references":[{"url":"https://git.kernel.org/stable/c/01b05cebe1e862e31e382359848d7dca02525a4f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/19a30bbb6477bfd7e3109b7a2943e6597ee9de37","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4b575052ea65423693726a21826d783cf3f1745e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89454.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89454"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532273"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89454"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89454"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89454.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-14T08:36:32.605Z","epss":0.002,"epssPercentile":0.10109,"cvss":4.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-89454","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nPCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()\n\nplda_init_interrupts() initializes IRQ domains and creates IRQ mapping but\ndoes not unwind them when later step fails.\n\nIf platform_get_irq() or either irq_create_mapping() fails\nin plda_init_interrupts(), the domains are never deinitialized. If\nirq_create_mapping() fails, port->intx_irq stays initialized.\n\nHence, remove the IRQ domains in the error path by calling\nplda_pcie_irq_domain_deinit().\n\nSince plda_pcie_irq_domain_deinit() now disposes of the intx_irq and\nmsi_irq mappings itself before removing their domains, the msi_irq\nmapping failure path can go directly to err_irq_domain_deinit instead of\ndisposing of port->intx_irq separately first.\n\nThis issue was found by automated review of sashiko-bot\n\n[mani: commit log]\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** · Low · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89454.json)","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":24.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204045,"id":"CVE-2026-89454","ts":1789490231180,"field":"cvss","old":null,"new":"4.4"},{"seq":204044,"id":"CVE-2026-89454","ts":1789490231180,"field":"severity","old":"none","new":"medium"},{"seq":147466,"id":"CVE-2026-89454","ts":1789270211019,"field":"cvss","old":null,"new":"4.4"},{"seq":147465,"id":"CVE-2026-89454","ts":1789270211019,"field":"severity","old":"none","new":"medium"},{"seq":109210,"id":"CVE-2026-89454","ts":1789183730739,"field":"cvss","old":null,"new":"4.4"},{"seq":109209,"id":"CVE-2026-89454","ts":1789183730739,"field":"severity","old":"none","new":"medium"}]}