CVE-2026-98133 ntfs: leave HasEA flag untouched on setxattr failure
A logic error in the Linux kernel NTFS driver incorrectly clears the HasEA flag on setxattr failure, potentially hiding existing extended attributes from users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98133?
CVE-2026-98133 is a medium-severity vulnerability in Linux kernel, published on 25 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ntfs: leave HasEA flag untouched on setxattr failure
In ntfs_set_ea(), the exit path unconditionally updates the HasEA flag based on ea_info_qsize. When an error occurs before ea_info_qsize is updated, NInoClearHasEA() hides existing on-disk EAs until the inode is evicted.
Only update the flag on success.
Which versions are affected by CVE-2026-98133?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-98133?
Apply the vendor's patch.
Is CVE-2026-98133 being exploited?
There is no known exploitation of CVE-2026-98133 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2026-98133, GHSA-f7v2-w5q3-wjf8, UBUNTU-CVE-2026-98133.