CVE-2026-80573 - Vulnerability Details

- Input: iforce - validate input packet lengths

Description

In the Linux kernel, the following vulnerability has been resolved:

Input: iforce - validate input packet lengths

iforce_process_packet() reads fixed fields from joystick, wheel and
status packets without first checking their lengths. In particular, the
shared hats-and-buttons helper unconditionally reads data[6]. The status
tail is a sequence of 16-bit effect addresses, but an incomplete final
address is also consumed. A successful zero-length USB URB additionally
reads the packet ID before the common parser is called.

Reject the zero-length USB transfer, require the seven-byte joystick and
wheel prefixes and the two-byte status prefix, and consume only complete
status-tail addresses.

Published: 2026-08-26

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

The flaw occurs in the Linux kernel’s IFORCE USB driver where the packet parsing routine fails to verify packet length before reading data. The helper reads fixed offsets and the status tail consumes 16‑bit addresses without ensuring the buffer contains the expected data. As a result, a specially crafted packet—such as a zero‑length USB URB or one missing the required prefixes—causes an out‑of‑bounds read that can crash the kernel or expose kernel memory, resulting in a denial‑of‑service condition. This is a classic out‑of‑bounds read, fitting OWASP CWE‑125.

Affected Systems

All deployments of the Linux kernel that include the IFORCE USB driver are affected. This includes every mainstream distribution kernel prior to the patch that adds packet length validation. The impact is limited to systems that accept IFORCE USB input; other kernel subsystems are not directly affected.

Risk and Exploitability

The CVSS score is 5.5 and the EPSS score is below 1 %. The vulnerability is not listed in CISA KEV. The attacker must deliver a specially crafted IFORCE USB packet, implying physical or local USB access. Because the kernel may crash or leak memory, the risk is considered moderate; it could be higher where USB access is not tightly controlled. Exploitation is straightforward once the device is present; no additional complex conditions are required, and the lack of bounds checking ensures the kernel will either panic or read unintended memory.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 0ec411167655ef3ff3e84f6af685e962aff9a75b
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 609be40988898a4d75225ade0ea5c1734757dd33
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< e73d7a7d913d89141321f5f3f16343ecc200d152
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 5232529eaf57f08fe37484e301579a1915b93d14
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 2c083ab16e33fbff3ab8c752fbf8118ed3dd31ce
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< a64a8b6b31cd669f0449138e53cc2592d454ccf1
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 84e5cb517f445dadbd5f8bf4ec513540e51f9c36
`1da177e4c3f41524e886b7f1b8a0c1fc7321cac2`	affected	< 5751c781d3c97ab6ce0e2a966156ed882152c415

Linux

affected

Version	Status	Constraints
`2.6.12`	affected	—
`0`	unaffected	< 2.6.12
`5.10.266`	unaffected	≤ 5.10.*
`5.15.217`	unaffected	≤ 5.15.*
`6.1.184`	unaffected	≤ 6.1.*
`6.6.153`	unaffected	≤ 6.6.*
`6.12.105`	unaffected	≤ 6.12.*
`6.18.46`	unaffected	≤ 6.18.*
`7.1.10`	unaffected	≤ 7.1.*
`7.2`	unaffected	≤ *

No data.

Vendor Product Confidence Versions

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,0ec411167655ef3ff3e84f6af685e962aff9a75b)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,609be40988898a4d75225ade0ea5c1734757dd33)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,e73d7a7d913d89141321f5f3f16343ecc200d152)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,5232529eaf57f08fe37484e301579a1915b93d14)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,2c083ab16e33fbff3ab8c752fbf8118ed3dd31ce)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a64a8b6b31cd669f0449138e53cc2592d454ccf1)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,84e5cb517f445dadbd5f8bf4ec513540e51f9c36)`	affected	code_commit	—
`[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,5751c781d3c97ab6ce0e2a966156ed882152c415)`	affected	code_commit	—
`[0,5.10.266)`	affected	semver	—
`[0,5.15.217)`	affected	semver	—
`[0,6.1.184)`	affected	semver	—
`[0,6.6.153)`	affected	semver	—
`[0,6.12.105)`	affected	semver	—
`[0,6.18.46)`	affected	semver	—
`[0,7.1.10)`	affected	semver	—

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`[5.10.266,5.11.0)`	unaffected	semver	—
`[5.15.217,5.16.0)`	unaffected	semver	—
`[6.1.184,6.2.0)`	unaffected	semver	—
`[6.6.153,6.7.0)`	unaffected	semver	—
`[7.1.10,7.2.0)`	unaffected	semver	—
`[7.2,*]`	unaffected	generic	—
`[6.12.105,6.13.0)`	unaffected	semver	—
`[6.18.46,6.19.0)`	unaffected	semver	—
`[6.6.153,6.7.0)`	unaffected	semver	—
`[6.1.184,6.2.0)`	unaffected	semver	—
`[5.15.217,5.16.0)`	unaffected	semver	—
`[5.10.266,5.11.0)`	unaffected	semver	—
`[7.1.10,7.2.0)`	unaffected	semver	—
`[6.18.46,6.19.0)`	unaffected	semver	—
`[6.12.105,6.13.0)`	unaffected	semver	—
`[6.6.153,6.7.0)`	unaffected	semver	—
`[6.1.184,6.2.0)`	unaffected	semver	—
`[5.15.217,5.16.0)`	unaffected	semver	—
`[5.10.266,5.11.0)`	unaffected	semver	—
`[7.2,*]`	unaffected	generic	—

Found an issue or want to improve our Enrichment? You can suggest it directly by opening an issue on our dedicated GitHub repository .

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Apply the latest Linux kernel patch that validates IFORCE packet lengths
If an update cannot be applied immediately, disable or unload the iforce USB driver or block the device via udev rules
Monitor kernel logs for OOPS or BUG messages that indicate a crash or attempted exploitation

Generated by OpenCVE AI on August 28, 2026 at 08:42 UTC.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Debian DLA	DLA-4777-1	linux security update

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00164.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/0ec411167655ef3ff3e84f6af685e962aff9a75b
https://git.kernel.org/stable/c/2c083ab16e33fbff3ab8c752fbf8118ed3dd31ce
https://git.kernel.org/stable/c/5232529eaf57f08fe37484e301579a1915b93d14
https://git.kernel.org/stable/c/5751c781d3c97ab6ce0e2a966156ed882152c415
https://git.kernel.org/stable/c/609be40988898a4d75225ade0ea5c1734757dd33
https://git.kernel.org/stable/c/84e5cb517f445dadbd5f8bf4ec513540e51f9c36
https://git.kernel.org/stable/c/a64a8b6b31cd669f0449138e53cc2592d454ccf1
https://git.kernel.org/stable/c/e73d7a7d913d89141321f5f3f16343ecc200d152
https://lore.kernel.org/linux-cve-announce/2026082613-CVE-2026-80573-c85c@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-80573
https://www.cve.org/CVERecord?id=CVE-2026-80573

History

Thu, 27 Aug 2026 18:00:00 +0000

Type	Values Removed	Values Added
References		https://lore.kernel.org/linux-cve-announce/2026082613-CVE-2026-80573-c85c@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2026-80573 https://www.cve.org/CVERecord?id=CVE-2026-80573
Metrics	threat_severity `None`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}` threat_severity `Moderate`

Wed, 26 Aug 2026 16:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-125

Wed, 26 Aug 2026 14:45:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: Input: iforce - validate input packet lengths iforce_process_packet() reads fixed fields from joystick, wheel and status packets without first checking their lengths. In particular, the shared hats-and-buttons helper unconditionally reads data[6]. The status tail is a sequence of 16-bit effect addresses, but an incomplete final address is also consumed. A successful zero-length USB URB additionally reads the packet ID before the common parser is called. Reject the zero-length USB transfer, require the seven-byte joystick and wheel prefixes and the two-byte status prefix, and consume only complete status-tail addresses.
Title		Input: iforce - validate input packet lengths
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/0ec411167655ef3ff3e84f6af685e962aff9a75b https://git.kernel.org/stable/c/2c083ab16e33fbff3ab8c752fbf8118ed3dd31ce https://git.kernel.org/stable/c/5232529eaf57f08fe37484e301579a1915b93d14 https://git.kernel.org/stable/c/5751c781d3c97ab6ce0e2a966156ed882152c415 https://git.kernel.org/stable/c/609be40988898a4d75225ade0ea5c1734757dd33 https://git.kernel.org/stable/c/84e5cb517f445dadbd5f8bf4ec513540e51f9c36 https://git.kernel.org/stable/c/a64a8b6b31cd669f0449138e53cc2592d454ccf1 https://git.kernel.org/stable/c/e73d7a7d913d89141321f5f3f16343ecc200d152

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-08-26T14:37:33.756Z

Updated: 2026-08-27T04:58:55.441Z

Reserved: 2026-08-26T14:34:25.768Z

Link: CVE-2026-80573

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-26T15:17:13.253

Modified: 2026-08-27T06:17:42.820

Link: CVE-2026-80573

Redhat

Severity : Moderate

Publid Date: 2026-08-26T00:00:00Z

Links: CVE-2026-80573 - Bugzilla

OpenCVE Enrichment

Updated: 2026-08-28T08:45:17Z

Weaknesses

CWE-125
Out-of-bounds Read

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Subscriptions

JSON object

JSON object

JSON object

JSON object

JSON object