CVE-2024-35790

usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group

State: Published
Severity: Not scored
Published: May 17, 2024
Updated: May 11, 2026
Reserved: May 17, 2024

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

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 6b989ea1c479533ab8dbfbeb1704c94b1d3320daAffected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 9794ffd9d0c39ee070fbd733f862bbe89b28ba33Affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before f1c5ddaef506e3517dce338c08a60663b1521920Affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0Affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 0ad011776c057ce881b7fd6d8c79ecd459c087e9Affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 165376f6b23e9a779850e750fb2eb06622e5a531Affected
LinuxLinux	4.19Affected before 4.19Not affected 5.10.238 through 5.10.Not affected 5.15.184 through 5.15.Not affected 6.1.140 through 6.1.Not affected 6.6.24 through 6.6.Not affected 6.7.12 through 6.7.*Not affected 6.8 and laterNot affected

Product

Versions

LinuxLinux

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 6b989ea1c479533ab8dbfbeb1704c94b1d3320daAffected
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 9794ffd9d0c39ee070fbd733f862bbe89b28ba33Affected
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before f1c5ddaef506e3517dce338c08a60663b1521920Affected
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0Affected
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 0ad011776c057ce881b7fd6d8c79ecd459c087e9Affected
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to before 165376f6b23e9a779850e750fb2eb06622e5a531Affected

LinuxLinux

4.19Affected
before 4.19Not affected
5.10.238 through 5.10.*Not affected
5.15.184 through 5.15.*Not affected
6.1.140 through 6.1.*Not affected
6.6.24 through 6.6.*Not affected
6.7.12 through 6.7.*Not affected
6.8 and laterNot affected

References

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