Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
0

CVE-2024-50269

Disclosure Date: November 19, 2024 •
CVE-2024-50269
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

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

usb: musb: sunxi: Fix accessing an released usb phy

Commit 6ed05c68cbca (“usb: musb: sunxi: Explicitly release USB PHY on
exit”) will cause that usb phy @glue->xceiv is accessed after released.

  1. register platform driver @sunxi_musb_driver
    // get the usb phy @glue->xceiv
    sunxi_musb_probe() –> devm_usb_get_phy().

  2. register and unregister platform driver @musb_driver
    musb_probe() –> sunxi_musb_init()
    use the phy here
    //the phy is released here
    musb_remove() –> sunxi_musb_exit() –> devm_usb_put_phy()

  3. register @musb_driver again
    musb_probe() –> sunxi_musb_init()
    use the phy here but the phy has been released at 2).
    …

Fixed by reverting the commit, namely, removing devm_usb_put_phy()
from sunxi_musb_exit().

Add Assessment

No one has assessed this topic. Be the first to add your voice to the community.

CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Linux 721ddad94559
Linux not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • Linux

Products

  • Linux
Technical Analysis