# CVE-2026-89454: linux: In the Linux kernel, the following vulnerability has been resolved:  PCI: plda: Fix IRQ domain leaks in the error pat...

CVE-2026-89454 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-89454, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-89454
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 11, 2026

## Description

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]

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.111-1 | [DEBIAN-CVE-2026-89454](https://patchblox.com/security/data/fix/linux/debian-cve-2026-89454.md) | Sep 23, 2026 |
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-89454](https://patchblox.com/security/data/fix/linux/debian-cve-2026-89454.md) | Sep 23, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | [DEBIAN-CVE-2026-89454](https://patchblox.com/security/data/fix/linux/debian-cve-2026-89454.md) | Sep 23, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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