CVE-2024-35790

MEDIUM

Linux Kernel < 6.6.24 - NULL Pointer Dereference

Title source: rule

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group The DisplayPort driver's sysfs nodes may be present to the userspace before typec_altmode_set_drvdata() completes in dp_altmode_probe. This means that a sysfs read can trigger a NULL pointer error by deferencing dp->hpd in hpd_show or dp->lock in pin_assignment_show, as dev_get_drvdata() returns NULL in those cases. Remove manual sysfs node creation in favor of adding attribute group as default for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is not used here otherwise the path to the sysfs nodes is no longer compliant with the ABI.

Scores

CVSS v3 5.5
EPSS 0.0002
EPSS Percentile 6.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

CWE
CWE-476
Status published

Affected Products (12)

linux/linux_kernel < 6.6.24
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/Kernel < 5.10.238linux
linux/Kernel < 5.15.184linux
linux/Kernel < 6.1.140linux
linux/Kernel < 6.6.24linux
linux/Kernel < 6.7.12linux

Timeline

Published May 17, 2024
Tracked Since Feb 18, 2026