SB2026042595 - Integer overflow in Linux kernel hid driver

Description

This security bulletin contains information about 1 vulnerability.

1) Integer overflow (CVE-ID: CVE-2026-31624)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a local attacker to cause a denial of service.

The vulnerability exists due to an undefined shift caused by improper input validation in s32ton() when processing a malicious HID report descriptor during output report construction. A local attacker can supply a broken HID device with an oversized report_size field to cause a denial of service.

The issue is triggered when an output report is built via hid_output_field() or hid_set_field().

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/58386f00af710922cafb0fb69211497beddfaa95
• https://git.kernel.org/stable/c/8a8333237f1f5caab8d4c3d2c2e7578c4263a97f
• https://git.kernel.org/stable/c/97014719bb8fccb1ffcbbc299e84b1f11b114195
• https://git.kernel.org/stable/c/ea363a34086ddb4231adc581a7f36c39ec154bfc