CVEvulnerability

CVE-2022-50036

5.5 MEDIUM Published 2025-06-18 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-06-18
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-191

Description

In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: dsi: Prevent underflow when computing packet sizes Currently, the packet overhead is subtracted using unsigned arithmetic. With a short sync pulse, this could underflow and wrap around to near the maximal u16 value. Fix this by using signed subtraction. The call to max() will correctly handle any negative numbers that are produced. Apply the same fix to the other timings, even though those subtractions are less likely to underflow.

Affected configurations

• linux linux kernel (>= 4.18 < 5.10.138) • linux linux kernel (>= 5.11 < 5.15.63) • linux linux kernel (>= 5.16 < 5.19.4) • linux linux kernel 6.0

Related

Weakness · CWE (1)

  • CWE-191 Integer Underflow (Wrap or Wraparound) weakness

References