CVE-2026-23197 i2c: imx: preserve error state in block data length handler

What is CVE-2026-23197?

CVE-2026-23197 is a medium-severity vulnerability in Linux kernel, published on 14 Feb 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:

i2c: imx: preserve error state in block data length handler

When a block read returns an invalid length, zero or >I2C_SMBUS_BLOCK_MAX, the length handler sets the state to IMX_I2C_STATE_FAILED. However, i2c_imx_master_isr() unconditionally overwrites this with IMX_I2C_STATE_READ_CONTINUE, causing an endless read loop that overruns buffers and crashes the system.

Guard the state transition to preserve error states set by the length handler.

Weakness: CWE-476

Which versions are affected by CVE-2026-23197?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-23197?

Apply the vendor's patch.

Is CVE-2026-23197 being exploited?

There is no known exploitation of CVE-2026-23197 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-23197, DEBIAN-CVE-2026-23197, GHSA-hp2v-w3xq-4jvv, UBUNTU-CVE-2026-23197.