Integer overflow in Linux

CVE-2023-53309

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix integer overflow in radeon_cs_parser_init The type of size is unsigned, if size is 0x40000000, there will be an integer overflow, size will be zero after size *= sizeof(uint32_t), will cause uninitialized memory to be referenced later

Vulnerability class: Integer Overflow

EPSS: 0.001 (4.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-53309?
CVE-2023-53309 is a medium-severity vulnerability in Linux, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2025-09-16.
How severe is CVE-2023-53309?
Medium severity. CVSS v3 base score is 5.5 out of 10.