Strix
26.1K

CVE-2026-64461

Unknown

Last modified

CVE-2026-64461 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Fix IRQ domain leak when port fails to enable When mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port from pcie->ports and frees the port structure. However, the IRQ domains set up earlier by mtk_pcie_init_irq_domain() are never freed. Fix this by refactoring mtk_pcie_irq_teardown() into a per-port helper, mtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when mtk_pcie_enable_port() fails.

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Fix IRQ domain leak when port fails to enable When mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port from pcie->ports and frees the port structure. However, the IRQ domains set up earlier by mtk_pcie_init_irq_domain() are never freed. Fix this by refactoring mtk_pcie_irq_teardown() into a per-port helper, mtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when mtk_pcie_enable_port() fails. Since the IRQ teardown must only happen in the probe error path (during resume, child devices may have active MSI mappings and the NOIRQ context prohibits sleeping locks), mtk_pcie_enable_port() is changed to return an error code so callers can distinguish the two paths and act accordingly. This issue was reported by Sashiko while reviewing the EcoNet EN7528 SoC support series.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= b099631df160ec608cd6147f4d20a8042567a5b8, < e23da72ef202654a7d5269885c4fa39a8404db76; >= b099631df160ec608cd6147f4d20a8042567a5b8, < ec7c05eed47d8b15c45380aee7ca168a82e15035; >= b099631df160ec608cd6147f4d20a8042567a5b8, < 1fbe8972a39548a633d06d7b03a01b7b119a2c12; >= b099631df160ec608cd6147f4d20a8042567a5b8, < fe8c701a53c2816cd82301f66c671d952003c1b0; >= b099631df160ec608cd6147f4d20a8042567a5b8, < ce52e494a7555bdae1d990a2654fd7547ef6d986; >= b099631df160ec608cd6147f4d20a8042567a5b8, < 6e6a529d6f779413379b4404c9ef6a36c0337225; >= b099631df160ec608cd6147f4d20a8042567a5b8, < df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e; >= b099631df160ec608cd6147f4d20a8042567a5b8, < f865a57896bd92d7662eb2818d8f48872e2cbbc7
LinuxLinux4.14

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-64461?
In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Fix IRQ domain leak when port fails to enable When mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port from pcie->ports and frees the port structure. However, the IRQ domains set up earlier by mtk_pcie_init_irq_domain() are never freed. Fix this by refactoring mtk_pcie_irq_teardown() into a per-port helper, mtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when mtk_pcie_enable_port() fails. Since the IRQ teardown must only happen in the probe error path (during resume, child devices may have active MSI mappings and the NOIRQ context prohibits sleeping locks), mtk_pcie_enable_port() is changed to return an error code so callers can distinguish the two paths and act accordingly. This issue was reported by Sashiko while reviewing the EcoNet EN7528 SoC support series.
How severe is CVE-2026-64461?
Severity scoring for CVE-2026-64461 is pending analysis.
How do I fix CVE-2026-64461?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-64461?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST