Tracker / CVE-2025-37819
CVE-2025-37819
High 7.8
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.
Affected products and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel |
| linux | linux_kernel · 4.5 → 5.4.294 |
| linux | linux_kernel · 5.11 → 5.15.182 |
| linux | linux_kernel · 5.16 → 6.1.138 |
| linux | linux_kernel · 5.5 → 5.10.238 |
| linux | linux_kernel · 6.13 → 6.14.5 |
| linux | linux_kernel · 6.2 → 6.6.89 |
| linux | linux_kernel · 6.7 → 6.12.26 |
Analysis
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