CVE-2026-64461
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
25/07/2026
Última modificación:
25/07/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
PCI: mediatek: Fix IRQ domain leak when port fails to enable<br />
<br />
When mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port<br />
from pcie->ports and frees the port structure. However, the IRQ domains set<br />
up earlier by mtk_pcie_init_irq_domain() are never freed.<br />
<br />
Fix this by refactoring mtk_pcie_irq_teardown() into a per-port helper,<br />
mtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when<br />
mtk_pcie_enable_port() fails. Since the IRQ teardown must only happen in<br />
the probe error path (during resume, child devices may have active MSI<br />
mappings and the NOIRQ context prohibits sleeping locks),<br />
mtk_pcie_enable_port() is changed to return an error code so callers can<br />
distinguish the two paths and act accordingly.<br />
<br />
This issue was reported by Sashiko while reviewing the EcoNet EN7528 SoC<br />
support series.
Impacto
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/1fbe8972a39548a633d06d7b03a01b7b119a2c12
- https://git.kernel.org/stable/c/6e6a529d6f779413379b4404c9ef6a36c0337225
- https://git.kernel.org/stable/c/ce52e494a7555bdae1d990a2654fd7547ef6d986
- https://git.kernel.org/stable/c/df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e
- https://git.kernel.org/stable/c/e23da72ef202654a7d5269885c4fa39a8404db76
- https://git.kernel.org/stable/c/ec7c05eed47d8b15c45380aee7ca168a82e15035
- https://git.kernel.org/stable/c/f865a57896bd92d7662eb2818d8f48872e2cbbc7
- https://git.kernel.org/stable/c/fe8c701a53c2816cd82301f66c671d952003c1b0



