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LIN1023-5168 : Security Advisory - linux - CVE-2024-26978

Created: May 5, 2024    Updated: May 23, 2024
Resolved Date: May 6, 2024
Found In Version: 10.23.30.1
Fix Version: 10.23.30.10
Severity: Standard
Applicable for: Wind River Linux LTS 23
Component/s: Kernel

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.

CREATE(Triage):(User=admin) [CVE-2024-26978 (https://nvd.nist.gov/vuln/detail/CVE-2024-26978)

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