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Linux Kernel LZMA Decompression NULL Pointer Dereference Vulnerability on HIGHMEM Platforms

Vulnerability

A vulnerability in the Linux kernel's EROFS file system has been fixed, which involved an incorrect handling of memory pages during LZMA decompression on HIGHMEM platforms. This mismanagement led to a NULL pointer dereference, causing a kernel crash. The issue has been resolved, and the vulnerability no longer affects HIGHMEM platforms.

Impact

Exploitation of this vulnerability could lead to a kernel crash due to a NULL pointer dereference, disrupting system operations.

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
4.0
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.