CVE-2023-53711 NFS: Fix a potential data corruption
A flaw in the Linux kernel NFS client could lead to data corruption during request retransmission, requiring a kernel patch.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-53711?
CVE-2023-53711 is a high-severity vulnerability in Linux, published on 22 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
NFS: Fix a potential data corruption
We must ensure that the subrequests are joined back into the head before we can retransmit a request. If the head was not on the commit lists, because the server wrote it synchronously, we still need to add it back to the retransmission list. Add a call that mirrors the effect of nfs_cancel_remove_inode() for O_DIRECT.
Which versions are affected by CVE-2023-53711?
How do I fix CVE-2023-53711?
Apply the vendor's patch.
Is CVE-2023-53711 being exploited?
There is no known exploitation of CVE-2023-53711 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-53711, DEBIAN-CVE-2023-53711, GHSA-m9mq-5qq3-7f5f, UBUNTU-CVE-2023-53711.