CVE-2025-37819

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() With ACPI in place, gicv2m_get_fwnode() is registered with the pci subsystem as pci_msi_get_fwnode_cb(), which may get invoked at runtime during a PCI host bridge probe. But, the call back is wrongly marked as __init, causing it to be freed, while being registered with the PCI subsystem and could trigger: Unable to handle kernel paging request at virtual address ffff8000816c0400 gicv2m_get_fwnode+0x0/0x58 (P) pci_set_bus_msi_domain+0x74/0x88 pci_register_host_bridge+0x194/0x548 This is easily reproducible on a Juno board with ACPI boot. Retain the function for later use.

• linux linux kernel (>= 4.5 < 5.4.294) • linux linux kernel (>= 5.5 < 5.10.238) • linux linux kernel (>= 5.11 < 5.15.182) • linux linux kernel (>= 5.16 < 6.1.138) • linux linux kernel (>= 6.2 < 6.6.89) • linux linux kernel (>= 6.7 < 6.12.26) • linux linux kernel (>= 6.13 < 6.14.5) • linux linux kernel 6.15 • debian debian linux 11.0