CVE-2026-46097 Input: edt-ft5x06 - fix use-after-free in debugfs teardown
A use-after-free in the edt-ft5x06 touch driver's debugfs teardown allows attackers to potentially execute code or crash the system.
- 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-2026-46097?
CVE-2026-46097 is a high-severity use after free vulnerability in Linux kernel, published on 27 May 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:
Input: edt-ft5x06 - fix use-after-free in debugfs teardown
The commit 68743c500c6e ("Input: edt-ft5x06 - use per-client debugfs directory") removed the manual debugfs teardown, relying on the I2C core to handle it. However, this creates a window where debugfs files are still accessible after edt_ft5x06_ts_teardown_debugfs() frees tsdata->raw_buffer.
To prevent a use-after-free, protect the freeing of raw_buffer with the device mutex and set raw_buffer to NULL. The debugfs read function already checks if raw_buffer is NULL under the same mutex, so this safely avoids the use-after-free.
Weakness: CWE-416
Which versions are affected by CVE-2026-46097?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46097?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-46097 being exploited?
There is no known exploitation of CVE-2026-46097 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-46097, DEBIAN-CVE-2026-46097, GHSA-69mg-vw3h-xm3v, UBUNTU-CVE-2026-46097.