CVE-2024-50239

phy: qcom: qmp-usb-legacy: fix NULL-deref on runtime suspend

State: Published
Severity: 5.5 Medium
Published: Nov 9, 2024
Updated: May 11, 2026
Reserved: Oct 21, 2024

Description

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

phy: qcom: qmp-usb-legacy: fix NULL-deref on runtime suspend

Commit 413db06c05e7 ("phy: qcom-qmp-usb: clean up probe initialisation") removed most users of the platform device driver data from the qcom-qmp-usb driver, but mistakenly also removed the initialisation despite the data still being used in the runtime PM callbacks. This bug was later reproduced when the driver was copied to create the qmp-usb-legacy driver.

Restore the driver data initialisation at probe to avoid a NULL-pointer dereference on runtime suspend.

Apparently no one uses runtime PM, which currently needs to be enabled manually through sysfs, with these drivers.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	e464a3180a43b6596bd267f9f274e1793bfb8150 to before 7e8066811a2c43fbb5f53c2c26d389e4bab9da34Affected e464a3180a43b6596bd267f9f274e1793bfb8150 to before b1cffd00daa9cf499b49a0da698eff5032914f6eAffected e464a3180a43b6596bd267f9f274e1793bfb8150 to before 29240130ab77c80bea1464317ae2a5fd29c16a0cAffected
LinuxLinux	6.6Affected before 6.6Not affected 6.6.60 through 6.6.Not affected 6.11.7 through 6.11.Not affected 6.12 and laterNot affected

References

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