CVE-2025-37819

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Source
https://cve.org/CVERecord?id=CVE-2025-37819
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37819.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-37819
Downstream
Related
Published
2025-05-08T06:26:13.975Z
Modified
2026-03-11T07:52:44.004715Z
Summary
irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode()
Details

In the Linux kernel, the following vulnerability has been resolved:

irqchip/gic-v2m: Prevent use after free of gicv2mgetfwnode()

With ACPI in place, gicv2mgetfwnode() is registered with the pci subsystem as pcimsigetfwnodecb(), 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 gicv2mgetfwnode+0x0/0x58 (P) pcisetbusmsidomain+0x74/0x88 pciregisterhost_bridge+0x194/0x548

This is easily reproducible on a Juno board with ACPI boot.

Retain the function for later use.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37819.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0644b3daca28dcb320373ae20069c269c9386304
Fixed
0c241dedc43a036599757cd08f356253fa3e5014
Fixed
b63de43af8d215b0499eac28b2caa4439183efc1
Fixed
f95659affee301464f0d058d528d96b35b452da8
Fixed
dc0d654eb4179b06d3206e4396d072108b9ba082
Fixed
2f2803e4b5e4df2b08d378deaab78b1681ef9b30
Fixed
3939d6f29d34cdb60e3f68b76e39e00a964a1d51
Fixed
47bee0081b483b077c7560bc5358ad101f89c8ef
Fixed
3318dc299b072a0511d6dfd8367f3304fb6d9827

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37819.json"