Description

In the Linux kernel, the following vulnerability has been resolved:

serial: max310x: fix NULL pointer dereference in I2C instantiation

When trying to instantiate a max14830 device from userspace:

echo max14830 0x60 > /sys/bus/i2c/devices/i2c-2/new_device

we get the following error:

Unable to handle kernel NULL pointer dereference at virtual address...
...
Call trace:
max310x_i2c_probe+0x48/0x170 [max310x]
i2c_device_probe+0x150/0x2a0
...

Add check for validity of devtype to prevent the error, and abort probe
with a meaningful error message.

Classification

CVE ID: CVE-2024-26978

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.08% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/7d271b798add90c6196539167c019d0817285cf0
https://git.kernel.org/stable/c/c45e53c27b78afd6c81fc25608003576f27b5735
https://git.kernel.org/stable/c/12609c76b755dbeb1645c0aacc0f0f4743b2eff3
https://git.kernel.org/stable/c/2160ad6861c4a21d3fa553d7b2aaec6634a37f8a
https://git.kernel.org/stable/c/5cd8af02b466e1beeae13e2de3dc58fcc7925e5a
https://git.kernel.org/stable/c/aeca49661fd02fd56fb026768b580ce301b45733
https://git.kernel.org/stable/c/0d27056c24efd3d63a03f3edfbcfc4827086b110

Timeline