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Linux Kernel SPI-NOR SST Write Operation Vulnerability Leading to Kernel Crash

Vulnerability

A vulnerability in the Linux kernel's SPI-NOR driver for SST devices has been introduced by a recent commit. This vulnerability causes only one byte of data to be written, regardless of the actual amount specified. As a result, a kernel crash occurs during the write process. The issue arises in version 6.12.0, as indicated by the call trace included in the commit.

Impact

Exploitation of this vulnerability leads to a kernel crash, disrupting system operations and potentially causing data loss or corruption.

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

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
5.3
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.