HID: prodikeys: Check presence of pm->input_ep82
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/3f1b21cc67a15d7d081378a9b8747dd000a017b8
- https://git.kernel.org/stable/c/cee8337e1bad168136aecfe6416ecd7d3aa7529a
- https://git.kernel.org/stable/c/d08f35f843881ec504d7537a9bb728a073db3366
- https://git.kernel.org/stable/c/d5512ce892f774d37c53082adadfcad04f21b50e
- https://git.kernel.org/stable/c/e7ac1cd823cd2e9fcbd5cb0b261d6d35dbb79341
- https://git.kernel.org/stable/c/edccbf7d6dc05d692bde3a89de5a4001f72a0fa4
- https://git.kernel.org/stable/c/ee572578f09f0e743e9383393a75c3a7a0f9b4c2
- https://git.kernel.org/stable/c/f580c79683356632f12f2c2029f2fe936d953aa1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43251.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43251