Early Access — Mondoo Vulnerability Intelligence is currently in preview.

CVE-2024-26978

MEDIUM5.5

serial: max310x: fix NULL pointer dereference in I2C instantiation

Published May 1, 2024

Modified 8 months ago

No fix available

Details

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.

References

WEBhttps://git.kernel.org/stable/c/0d27056c24efd3d63a03f3edfbcfc4827086b110 WEBhttps://git.kernel.org/stable/c/12609c76b755dbeb1645c0aacc0f0f4743b2eff3 WEBhttps://git.kernel.org/stable/c/2160ad6861c4a21d3fa553d7b2aaec6634a37f8a WEBhttps://git.kernel.org/stable/c/5cd8af02b466e1beeae13e2de3dc58fcc7925e5a WEBhttps://git.kernel.org/stable/c/7d271b798add90c6196539167c019d0817285cf0 WEBhttps://git.kernel.org/stable/c/aeca49661fd02fd56fb026768b580ce301b45733 WEBhttps://git.kernel.org/stable/c/c45e53c27b78afd6c81fc25608003576f27b5735 WEBhttps://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2024-26978

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedMay 1, 2024

ModifiedMay 4, 2025

CVE-2024-26978 | Mondoo Vulnerability Intelligence