CVE-2025-39734
Linux Kernel vulnerability analysis and mitigation

Overview

A vulnerability in the Linux kernel was identified and tracked as CVE-2025-39734. The issue involves the reversion of a commit that replaced inodetrylock with inodelock in the fs/ntfs3 filesystem component. The vulnerability was discovered and disclosed on September 7, 2025, affecting the Linux kernel version 6.16-rc1 and related versions (NVD).

Technical details

The vulnerability stems from a previous fix attempt where conditional lock acquisition was removed to address an xfstest bug during internal testing. The issue manifested as a deadlock reported by syzbot, which was ultimately resolved by reintroducing conditional acquisition. The fix involved reverting commit 69505fe98f198ee813898cbcaf6770949636430b. Notably, the original xfstest bug no longer occurs on kernel version 6.16-rc1 during internal testing, suggesting that changes in other modules may have contributed to the resolution (NVD).

Additional resources


SourceThis report was generated using AI

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