Not yet scoredPublished Oct 28, 2025

CVE-2025-40035Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak

Updated under an hour ago (Oct 26, 2026, 8:40 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak Struct ff_effect_compat is embedded twice inside uinput_ff_upload_compat, contains internal padding. In particular, there is a hole after struct ff_replay to satisfy alignment requirements for the following union member. Without clearing the structure, copy_to_user() may leak stack data to userspace. Initialize ff_up_compat to zero before filling valid fields.

CVSS: Not yet scored
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: Deferred
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	2d56f3a32c0e62f99c043d2579840f9731fe5855 builds before 1b317796013f666ae5040edbf0f230ec61496d42; from 2d56f3a32c0e62f99c043d2579840f9731fe5855 before 877172b97786ed1678640dff0b2d35abb328844c; from 2d56f3a32c0e62f99c043d2579840f9731fe5855 before e63aade22a33e77b93c98c9f02db504d897a76b4; from 2d56f3a32c0e62f99c043d2579840f9731fe5855 before 933b87c4590b42500299f00ff55f555903056803; from 2d56f3a32c0e62f99c043d2579840f9731fe5855 before fd8a23ecbc602d00e47b27f20b07350867d0ebe5; from 2d56f3a32c0e62f99c043d2579840f9731fe5855 before 48c96b7e9e03516936d6deba54b5553097eae817; from 2d56f3a32c0e62f99c043d2579840f9731fe5855 before f5e1f3b85aadce74268c46676772c3e9fa79897e; from 2d56f3a32c0e62f99c043d2579840f9731fe5855 before d3366a04770eea807f2826cbdb96934dd8c9bf79	CNA record

References

References

https://git.kernel.org/stable/c/1b317796013f666ae5040edbf0f230ec61496d42
https://git.kernel.org/stable/c/877172b97786ed1678640dff0b2d35abb328844c
https://git.kernel.org/stable/c/e63aade22a33e77b93c98c9f02db504d897a76b4
https://git.kernel.org/stable/c/933b87c4590b42500299f00ff55f555903056803
https://git.kernel.org/stable/c/fd8a23ecbc602d00e47b27f20b07350867d0ebe5
https://git.kernel.org/stable/c/48c96b7e9e03516936d6deba54b5553097eae817
https://git.kernel.org/stable/c/f5e1f3b85aadce74268c46676772c3e9fa79897e
https://git.kernel.org/stable/c/d3366a04770eea807f2826cbdb96934dd8c9bf79

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.