CVE-2023-53722
Published Oct 22, 2025
Modified Apr 15, 2026
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.
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References
Other References
https://git.kernel.org/stable/c/25a68f2286be56fb3a6f9fa0e269c04b5e6c6e24
https://git.kernel.org/stable/c/4bdb92eaf645e312975357adc3c4e9523b6e67f1
https://git.kernel.org/stable/c/4f7d853b4590fc20e90dd50e346c02811a8c5b08
https://git.kernel.org/stable/c/4f96c0665f9f4cf70130c9757750dc43dc679c82
https://git.kernel.org/stable/c/7993cfc041481a3a9cd4a3858088fc846b8ccaf7
https://git.kernel.org/stable/c/8b0472b50bcf0f19a5119b00a53b63579c8e1e4d
https://git.kernel.org/stable/c/91fbd4e75cb573f44d2619a9dc2f9ba927040760
https://git.kernel.org/stable/c/beedf40f73939f248c81802eda08a2a8148ea13e
Frequently Asked Questions
What is CVE-2023-53722? +
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.
How do I check if I'm vulnerable to CVE-2023-53722? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.