CVE-2025-37819
Description
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.
How to fix
- linux linux_kernel5.4.294, 5.10.238, 5.15.182, 6.1.138, 6.6.89, 6.12.26, 6.14.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.5 ≤ v < 5.4.294, 5.5 ≤ v < 5.10.238, 5.11 ≤ v < 5.15.182, 5.16 ≤ v < 6.1.138, 6.2 ≤ v < 6.6.89, 6.7 ≤ v < 6.12.26, 6.13 ≤ v < 6.14.5, 6.15 | 5.4.294, 5.10.238, 5.15.182, 6.1.138, 6.6.89, 6.12.26, 6.14.5 |
| debian debian_linux | 11.0 | — |
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