CVE-2026-43251 Details
Description
In the Linux kernel, the following vulnerability has been resolved: HID: prodikeys: Check presence of pm->input_ep82 Fake USB devices can send their own report descriptors for which the input_mapping() hook does not get called. In this case, pm->input_ep82 stays NULL, which leads to a crash later. This does not happen with the real device, but can be provoked by imposing as one.
A vulnerability in the Linux kernel's HID Prodikeys driver can lead to a null pointer dereference and subsequent crash. This issue arises when fake USB devices send report descriptors that bypass the input_mapping() hook, leaving the pm->input_ep82 variable null. While this problem does not occur with genuine devices, it can be exploited by simulating a fake device.
Users can update to the latest version of the Linux kernel where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/3f1b21cc67a15d7d081378a9b8747dd000a017b8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cee8337e1bad168136aecfe6416ecd7d3aa7529a | kernel.org | Patch |
| https://git.kernel.org/stable/c/d08f35f843881ec504d7537a9bb728a073db3366 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d5512ce892f774d37c53082adadfcad04f21b50e | kernel.org | Patch |
| https://git.kernel.org/stable/c/e7ac1cd823cd2e9fcbd5cb0b261d6d35dbb79341 | kernel.org | Patch |
| https://git.kernel.org/stable/c/edccbf7d6dc05d692bde3a89de5a4001f72a0fa4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ee572578f09f0e743e9383393a75c3a7a0f9b4c2 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f580c79683356632f12f2c2029f2fe936d953aa1 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.35, < 5.10.252 >= 5.11, < 5.15.202 >= 5.16, < 6.1.165 >= 6.2, < 6.6.128 >= 6.7, < 6.12.75 >= 6.13, < 6.18.16 >= 6.19, < 6.19.6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 11, 2026 | Initial Analysis | [email protected] |
| May 6, 2026 | New CVE Received | kernel.org |