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Review reviewHigh

CVE-2023-53797

Linux

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.

CVSS
7.1
EPSS
0.26%
17.5% percentile
CISA KEV
Not listed
Published
2025.12.09
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.26%
Technical severityCVSS 7.1

Vulnerability overview

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.

Affected product and versions

Product
Linux
Affected versions
>= f9e27d4bdb1fe257c1453d02560e3adc3e5b6023 < 99036f1aed7e82773904f5d91a9897bb3e507fd9, >= 4502ebbdc0e21e44a8a706428e420ae9c1bb9bba < 9598a647ecc8f300b0540abf9d3b3439859d163b, >= 5047a228d4c8e2b5d1b856f21a00ecf717945a9c < 67ce7724637c6adb66f788677cb50b82615de0ac, >= fb98336e23c11e9c8c7dd5425ec71adbbef7f773 < d89750b19681581796dfbe3689bbb5d439b99b24, >= 694d3e4387bfa69925e075053894385351106e64 < bdeaa883b765709f231f47f9d6cc76c837a15396, >= 17d793f3ed53080dab6bbeabfc82de890c901001 < d0198363f9108e4adb2511e607ba91e44779e8b1, >= 17d793f3ed53080dab6bbeabfc82de890c901001 < 9a6c0e28e215535b2938c61ded54603b4e5814c5, >= 82a136c35506dc788a6c03ffeb11b10c907b0e26, >= 5.4.243 < 5.4.251, >= 5.10.180 < 5.10.188, >= 5.15.112 < 5.15.120, >= 6.1.29 < 6.1.37, >= 6.3.3 < 6.3.11, >= 6.2.16 < 6.3, >= 6.4
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CWE
Not available