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.
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4379-1 | linux-6.1 security update |
Debian DLA |
DLA-4404-1 | linux security update |
Debian DSA |
DSA-6053-1 | linux security update |
Ubuntu USN |
USN-8029-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8030-1 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-8033-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8033-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8033-3 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-8034-1 | Linux kernel (NVIDIA Tegra) vulnerabilities |
Ubuntu USN |
USN-8033-4 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-8029-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8033-5 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8034-2 | Linux kernel (NVIDIA Tegra IGX) vulnerabilities |
Ubuntu USN |
USN-8048-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-8033-6 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-8033-7 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8033-8 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-8029-3 | Linux kernel (Azure) vulnerabilities |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 01 Dec 2025 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Wed, 29 Oct 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 29 Oct 2025 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Wed, 29 Oct 2025 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Tue, 28 Oct 2025 12:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak | |
| References |
|
|
Projects
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-12-01T06:16:38.831Z
Reserved: 2025-04-16T07:20:57.153Z
Link: CVE-2025-40035
No data.
Status : Awaiting Analysis
Published: 2025-10-28T12:15:37.363
Modified: 2025-10-30T15:05:32.197
Link: CVE-2025-40035
OpenCVE Enrichment
Updated: 2025-10-29T10:58:43Z
No weakness.
Debian DLA
Debian DSA
Ubuntu USN