CVE-2025-37819
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Analyzed
Affected
- Linux Kernel < 5.4.294
- Linux Kernel < 5.10.238
- Linux Kernel < 5.15.182
- Linux Kernel < 6.1.138
- Linux Kernel < 6.6.89
- Linux Kernel < 6.12.26
- Linux Kernel < 6.14.5
- Linux Kernel 6.15
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-37819.md and follow it. Check whether this project is affected by CVE-2025-37819. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0c241dedc43a036599757cd08f356253fa3e5014
- https://git.kernel.org/stable/c/2f2803e4b5e4df2b08d378deaab78b1681ef9b30
- https://git.kernel.org/stable/c/3318dc299b072a0511d6dfd8367f3304fb6d9827
- https://git.kernel.org/stable/c/3939d6f29d34cdb60e3f68b76e39e00a964a1d51
- https://git.kernel.org/stable/c/47bee0081b483b077c7560bc5358ad101f89c8ef
- https://git.kernel.org/stable/c/b63de43af8d215b0499eac28b2caa4439183efc1
- https://git.kernel.org/stable/c/dc0d654eb4179b06d3206e4396d072108b9ba082
- https://git.kernel.org/stable/c/f95659affee301464f0d058d528d96b35b452da8
References
- https://git.kernel.org/stable/c/0c241dedc43a036599757cd08f356253fa3e5014
- https://git.kernel.org/stable/c/2f2803e4b5e4df2b08d378deaab78b1681ef9b30
- https://git.kernel.org/stable/c/3318dc299b072a0511d6dfd8367f3304fb6d9827
- https://git.kernel.org/stable/c/3939d6f29d34cdb60e3f68b76e39e00a964a1d51
- https://git.kernel.org/stable/c/47bee0081b483b077c7560bc5358ad101f89c8ef
- https://git.kernel.org/stable/c/b63de43af8d215b0499eac28b2caa4439183efc1
- https://git.kernel.org/stable/c/dc0d654eb4179b06d3206e4396d072108b9ba082
- https://git.kernel.org/stable/c/f95659affee301464f0d058d528d96b35b452da8
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html