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Linux Kernel RAID10 Discard Request Handling Vulnerability

Vulnerability

A vulnerability in the Linux kernel's RAID10 module has been addressed. The issue involved the improper handling of discard requests. Specifically, the function 'raid10_handle_discard' did not wait for a barrier before processing a discard bio with the 'REQ_NOWAIT' flag. Additionally, it was unnecessary to log a warning call trace for such discard bios, as quality engineers typically monitor dmesg for warnings or errors.

Impact

The vulnerability could lead to improper management of discard requests in RAID10, potentially causing issues with data handling or performance.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
0.6
exploitability
3.5
remediation
0.0
relevance
0.0
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.