Updated: 2025-11-19 04:02:24.167007
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.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.8 | HIGH | Not Vulnerable | 2025-11-28 07:57:12 | Introduced in v6.2 commit d51a15af37ce8 "irqchip/gic-v2m: Mark a few functions __init" | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2025-12-08 17:37:50 | ||
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2025-12-08 17:37:50 | ||
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.8 | HIGH | Already Fixed | 2025-12-02 17:20:14 | ||
| Oracle Linux 7 ELS | kernel-uek | 5.4.17 | 7.8 | HIGH | Released | CLSA-2025:1757963029 | 2025-09-16 11:20:45 | |
| TuxCare 9.6 ESU | kernel | 5.14.0 | 7.8 | HIGH | Released | CLSA-2025:1766488019 | 2025-12-23 20:10:05 | |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.8 | HIGH | Needs Triage | 2025-11-19 08:41:05 | ||
| Ubuntu 18.04 ELS | linux | 4.15.0 | 7.8 | HIGH | Not Vulnerable | 2025-12-31 07:34:36 | ||
| Ubuntu 20.04 ELS | linux | 5.4.0 | 7.8 | HIGH | Not Vulnerable | 2025-12-31 07:34:36 |