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CVE-2025-37819

HIGH

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published5/8/2025

Last Modified11/12/2025

Sourcenvd

Honeypot Sightings0

Affected Products

debian:debian_linuxlinux:linux_kernel

Weaknesses (CWE)

CWE-416

References

https://git.kernel.org/stable/c/0c241dedc43a036599757cd08f356253fa3e5014(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/2f2803e4b5e4df2b08d378deaab78b1681ef9b30(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/3318dc299b072a0511d6dfd8367f3304fb6d9827(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/3939d6f29d34cdb60e3f68b76e39e00a964a1d51(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/47bee0081b483b077c7560bc5358ad101f89c8ef(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/b63de43af8d215b0499eac28b2caa4439183efc1(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/dc0d654eb4179b06d3206e4396d072108b9ba082(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/f95659affee301464f0d058d528d96b35b452da8(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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