High 7.1Published Apr 16, 2025

CVE-2025-22044acpi: nfit: fix narrowing conversion in acpi_nfit_ctl

Updated under an hour ago (Oct 27, 2026, 9:40 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: acpi: nfit: fix narrowing conversion in acpi_nfit_ctl Syzkaller has reported a warning in to_nfit_bus_uuid(): "only secondary bus families can be translated". This warning is emited if the argument is equal to NVDIMM_BUS_FAMILY_NFIT == 0. Function acpi_nfit_ctl() first verifies that a user-provided value call_pkg->nd_family of type u64 is not equal to 0. Then the value is converted to int, and only after that is compared to NVDIMM_BUS_FAMILY_MAX. This can lead to passing an invalid argument to acpi_nfit_ctl(), if call_pkg->nd_family is non-zero, while the lower 32 bits are zero. Furthermore, it is best to return EINVAL immediately upon seeing the invalid user input. The WARNING is insufficient to prevent further undefined behavior based on other invalid user input. All checks of the input value should be applied to the original variable call_pkg->nd_family. [iweiny: update commit message]

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 15, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	6450ddbd5d8e83ea9927c7f9076a21f829699e0f builds before 4b65cff06a004ac54f6ea8886060f0d07b1ca055; 6450ddbd5d8e83ea9927c7f9076a21f829699e0f builds before 92ba06aef65522483784dcbd6697629ddbd4c4f9; from 6450ddbd5d8e83ea9927c7f9076a21f829699e0f before bae5b55e0f327102e78f6a66fb127275e9bc91b6; from 6450ddbd5d8e83ea9927c7f9076a21f829699e0f before c90402d2a226ff7afbe1d0650bee8ecc15a91049; from 6450ddbd5d8e83ea9927c7f9076a21f829699e0f before e71a57c5aaa389d4c3c82f920761262efdd18d38; from 6450ddbd5d8e83ea9927c7f9076a21f829699e0f before 73851cfceb00cc77d7a0851bc10f2263394c3e87; 6450ddbd5d8e83ea9927c7f9076a21f829699e0f builds before 85f11291658ab907c4294319c8102450cc75bb96; 6450ddbd5d8e83ea9927c7f9076a21f829699e0f builds before 2ff0e408db36c21ed3fa5e3c1e0e687c82cf132f	CNA record
linux linux_kernel linux:linux_kernel	from 5.9 before 5.10.236; from 5.11 before 5.15.180; from 5.16 before 6.1.134; from 6.2 before 6.6.87; from 6.7 before 6.12.23; from 6.13 before 6.13.11; from 6.14 before 6.14.2	NVD

References

References

https://git.kernel.org/stable/c/4b65cff06a004ac54f6ea8886060f0d07b1ca055	patch
https://git.kernel.org/stable/c/92ba06aef65522483784dcbd6697629ddbd4c4f9	patch
https://git.kernel.org/stable/c/bae5b55e0f327102e78f6a66fb127275e9bc91b6	patch
https://git.kernel.org/stable/c/c90402d2a226ff7afbe1d0650bee8ecc15a91049	patch
https://git.kernel.org/stable/c/e71a57c5aaa389d4c3c82f920761262efdd18d38	patch
https://git.kernel.org/stable/c/73851cfceb00cc77d7a0851bc10f2263394c3e87	patch
https://git.kernel.org/stable/c/85f11291658ab907c4294319c8102450cc75bb96	patch
https://git.kernel.org/stable/c/2ff0e408db36c21ed3fa5e3c1e0e687c82cf132f	patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.