CVE-2026-93068
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Vulnerability report for CVE-2026-93068, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-17
Last updated on: 2026-09-17
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix DM I2C teardown race
DM I2C adapters can remain visible to userspace while DM teardown is
already in progress. A concurrent i2c-dev transfer may then enter
amdgpu_dm_i2c_xfer() after the backing DM state has been torn down,
leading to a NULL pointer dereference.
Create a devres group around the DM I2C adapter lifetime and release it
at the start of dm_hw_fini(), before HPD, IRQ, and DM state are torn
down. This removes the I2C adapters first and waits for in-flight users
to drain before the structures used by amdgpu_dm_i2c_xfer() disappear.
This fixes a teardown ordering race seen during device removal:
BUG: kernel NULL pointer dereference
RIP: amdgpu_dm_i2c_xfer+0x122/0x1c0 [amdgpu]
Call Trace:
__i2c_transfer
i2c_transfer
i2cdev_ioctl_rdwr
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
