---
cve: "CVE-2026-89454"
severity: "LOW"
cvss: 3.1
epss: "20%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-11 20:19:26"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T05:41:29+02:00"
---

# CVE-2026-89454

> 3.1 LOW

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

PCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()

plda_init_interrupts() initializes IRQ domains and creates IRQ mapping but
does not unwind them when later step fails.

If platform_get_irq() or either irq_create_mapping() fails
in plda_init_interrupts(), the domains are never deinitialized. If
irq_create_mapping() fails, port->intx_irq stays initialized.

Hence, remove the IRQ domains in the error path by calling
plda_pcie_irq_domain_deinit().

Since plda_pcie_irq_domain_deinit() now disposes of the intx_irq and
msi_irq mappings itself before removing their domains, the msi_irq
mapping failure path can go directly to err_irq_domain_deinit instead of
disposing of port->intx_irq separately first.

This issue was found by automated review of sashiko-bot

[mani: commit log]

## Patch verfügbar (OSV)

- Kernel ≥ 6.12.109
- Kernel ≥ 6.18.50
- Kernel ≥ 7.2.4

## Referenzen

- <https://git.kernel.org/stable/c/01b05cebe1e862e31e382359848d7dca02525a4f>
- <https://git.kernel.org/stable/c/4b575052ea65423693726a21826d783cf3f1745e>
- <https://git.kernel.org/stable/c/e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad>
- <https://git.kernel.org/stable/c/19a30bbb6477bfd7e3109b7a2943e6597ee9de37>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-89454) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_