Input validation error in Linux kernel md driver



| Updated: 2025-06-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-49987
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU111697

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49987

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the md_stop() function in drivers/md/md.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: 5.19 - 5.19.5

CPE2.3 External links

https://git.kernel.org/stable/c/0dd84b319352bb8ba64752d4e45396d8b13e6018
https://git.kernel.org/stable/c/1678ca35b80a94d474fdc31e2497ce5d7ed52512
https://git.kernel.org/stable/c/661c01b2181d9413c799127f13143583b69f20fd
https://git.kernel.org/stable/c/690b5c90fd2d81fd1d2b6110fa36783232f6dce2
https://git.kernel.org/stable/c/8e7fb19f1a744fd34e982633ced756fee0498ef7
https://git.kernel.org/stable/c/a5a58fab556bfe618b4c9719eb85712d78c6cb10
https://git.kernel.org/stable/c/f42a9819ba84bed2e609a4dff56af37063dcabdc
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.6


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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