CVE-2025-39734
What it is
In the Linux kernel, the following vulnerability has been resolved: Revert "fs/ntfs3: Replace inode_trylock with inode_lock" This reverts commit 69505fe98f198ee813898cbcaf6770949636430b. Initially, conditional lock acquisition was removed to fix an xfstest bug that was observed during internal testing. The deadlock reported by syzbot is resolved by reintroducing conditional acquisition. The xfstest bug no longer occurs on kernel version 6.16-rc1 during internal testing. I assume that changes in other modules may have contributed to this.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 5.15.190
- Linux Kernel < 6.1.148
- Linux Kernel < 6.6.102
- Linux Kernel < 6.12.42
- Linux Kernel < 6.15.10
- Linux Kernel < 6.16.1
- Debian Linux 11.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-39734.md and follow it. Check whether this project is affected by CVE-2025-39734. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/1903a6c1f2818154f6bc87bceaaecafa92b6ac5c
- https://git.kernel.org/stable/c/7ce6f83ca9d52c9245b7a017466fc4baa1241b0b
- https://git.kernel.org/stable/c/a49f0abd8959048af18c6c690b065eb0d65b2d21
- https://git.kernel.org/stable/c/a936be9b5f51c4d23f66fb673e9068c6b08104a4
- https://git.kernel.org/stable/c/b356ee013a79e7e3147bfe065de376706c5d2ee9
- https://git.kernel.org/stable/c/bd20733746263acaaf2a21881665db27ee4303d5
- https://git.kernel.org/stable/c/bec8109f957a6e193e52d1728799994c8005ca83
References
- https://git.kernel.org/stable/c/1903a6c1f2818154f6bc87bceaaecafa92b6ac5c
- https://git.kernel.org/stable/c/7ce6f83ca9d52c9245b7a017466fc4baa1241b0b
- https://git.kernel.org/stable/c/a49f0abd8959048af18c6c690b065eb0d65b2d21
- https://git.kernel.org/stable/c/a936be9b5f51c4d23f66fb673e9068c6b08104a4
- https://git.kernel.org/stable/c/b356ee013a79e7e3147bfe065de376706c5d2ee9
- https://git.kernel.org/stable/c/bd20733746263acaaf2a21881665db27ee4303d5
- https://git.kernel.org/stable/c/bec8109f957a6e193e52d1728799994c8005ca83
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html