Bug 1992754 (CVE-2021-38204) - CVE-2021-38204 kernel: use-after-free and panic in drivers/usb/host/max3421-hcd.c by removing a MAX-3421 USB device in certain situations
Summary: CVE-2021-38204 kernel: use-after-free and panic in drivers/usb/host/max3421-h...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-38204
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1992755
Blocks: 1992756
TreeView+ depends on / blocked
 
Reported: 2021-08-11 17:30 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-08-17 07:45 UTC (History)
44 users (show)

Fixed In Version: kernel 5.14 rc3
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel. A denial of service attack (use-after-free and panic) can be caused by a physically proximate attack by removing a MAX-3421 USB device in certain situations. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Clone Of:
Environment:
Last Closed: 2021-08-17 07:28:12 UTC
Embargoed:

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2021-08-11 17:30:59 UTC 
drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b5fdf5c6e6bee35837e160c00ac89327bdad031b
Comment 1 Guilherme de Almeida Suckevicz 2021-08-11 17:31:30 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1992755]
Comment 2 Justin M. Forbes 2021-08-12 13:24:26 UTC 
This was fixed for Fedora with the 5.13.6 stable kernel updates.
Comment 6 Product Security DevOps Team 2021-08-17 07:28:12 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-38204
Note You need to log in before you can comment on or make changes to this bug.