Bug 2297487 (CVE-2024-40903) - CVE-2024-40903 kernel: usb: typec: tcpm: fix use-after-free case in tcpm_register_source_caps
Summary: CVE-2024-40903 kernel: usb: typec: tcpm: fix use-after-free case in tcpm_regi...
Keywords:
Status: NEW
Alias: CVE-2024-40903
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-07-12 13:25 UTC by OSIDB Bzimport
Modified: 2024-11-12 09:36 UTC (History)
4 users (show)

Fixed In Version: kernel 6.1.95, kernel 6.6.35, kernel 6.9.6, kernel 6.10-rc4
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:9315 0 None None None 2024-11-12 09:36:02 UTC

Description OSIDB Bzimport 2024-07-12 13:25:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

usb: typec: tcpm: fix use-after-free case in tcpm_register_source_caps

There could be a potential use-after-free case in
tcpm_register_source_caps(). This could happen when:
 * new (say invalid) source caps are advertised
 * the existing source caps are unregistered
 * tcpm_register_source_caps() returns with an error as
   usb_power_delivery_register_capabilities() fails

This causes port->partner_source_caps to hold on to the now freed source
caps.

Reset port->partner_source_caps value to NULL after unregistering
existing source caps.
Comment 5 errata-xmlrpc 2024-11-12 09:36:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315
Note You need to log in before you can comment on or make changes to this bug.