Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak
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.
Noroxi analysis
No Noroxi analysis for this record yet
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We use this product, ask for help- Published
- Oct 28, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 13th percentile
- CWE
- —
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Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Affected systems
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 2.6.29affected
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before 1b317796013f666ae5040edbf0f230ec61496d42affected · git
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before 877172b97786ed1678640dff0b2d35abb328844caffected · git
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before e63aade22a33e77b93c98c9f02db504d897a76b4affected · git
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before 933b87c4590b42500299f00ff55f555903056803affected · git
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before fd8a23ecbc602d00e47b27f20b07350867d0ebe5affected · git
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before 48c96b7e9e03516936d6deba54b5553097eae817affected · git
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before f5e1f3b85aadce74268c46676772c3e9fa79897eaffected · git
- 2d56f3a32c0e62f99c043d2579840f9731fe5855 and later · before d3366a04770eea807f2826cbdb96934dd8c9bf79affected · git
- before 2.6.29not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.158-1 | 6.1.158-1 |
| Debian:13 | linux | before 6.12.57-1 | 6.12.57-1 |
| Debian:14 | linux | before 6.17.6-1 | 6.17.6-1 |
| openSUSE:Tumbleweed | kernel-source | before 6.17.7-1.1 | 6.17.7-1.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
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Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 1b317796013f666ae5040edbf0f230ec61496d42 | Vendor (CNA) |
| Linux Linux | 48c96b7e9e03516936d6deba54b5553097eae817 | Vendor (CNA) |
| Linux Linux | 877172b97786ed1678640dff0b2d35abb328844c | Vendor (CNA) |
| Linux Linux | 933b87c4590b42500299f00ff55f555903056803 | Vendor (CNA) |
| Linux Linux | d3366a04770eea807f2826cbdb96934dd8c9bf79 | Vendor (CNA) |
| Linux Linux | e63aade22a33e77b93c98c9f02db504d897a76b4 | Vendor (CNA) |
| Linux Linux | f5e1f3b85aadce74268c46676772c3e9fa79897e | Vendor (CNA) |
| Linux Linux | fd8a23ecbc602d00e47b27f20b07350867d0ebe5 | Vendor (CNA) |
| azl3 kernel 6.6.104.2-4 on Azure Linux 3.0 | 6.6.112.1-2 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.158-1 · Debian:12 | Package registry (OSV) |
| opensuse:kernel-source | 6.17.7-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/1b317796013f666ae5040edbf0f230ec61496d42
- git.kernel.org/stable/c/48c96b7e9e03516936d6deba54b5553097eae817
- git.kernel.org/stable/c/877172b97786ed1678640dff0b2d35abb328844c
- git.kernel.org/stable/c/933b87c4590b42500299f00ff55f555903056803
- git.kernel.org/stable/c/d3366a04770eea807f2826cbdb96934dd8c9bf79
- git.kernel.org/stable/c/e63aade22a33e77b93c98c9f02db504d897a76b4
- git.kernel.org/stable/c/f5e1f3b85aadce74268c46676772c3e9fa79897e
- git.kernel.org/stable/c/fd8a23ecbc602d00e47b27f20b07350867d0ebe5
Vendor advisories and official records. Exploit/PoC links are deliberately left out.