Out-of-Bounds Access and Panic in Lustre File System: Lack of Validation in ptlrpc Module

Out-of-Bounds Access and Panic in Lustre File System: Lack of Validation in ptlrpc Module

CVE-2019-20426 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. In the function ldlm_cancel_hpreq_check, there is no lock_count bounds check.

Learn more about our Web Application Penetration Testing UK.