Bug 2135327 (CVE-2022-41849) - CVE-2022-41849 Kernel: A race between ufx_ops_open() and ufx_usb_disconnect() may result in UAF
Summary: CVE-2022-41849 Kernel: A race between ufx_ops_open() and ufx_usb_disconnect()...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2022-41849
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:
Blocks: 2135325
TreeView+ depends on / blocked
 
Reported: 2022-10-17 09:50 UTC by Rohit Keshri
Modified: 2022-12-04 08:19 UTC (History)
53 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A use-after-free flaw was found in the Linux kernel’s video fbdev driver. This flaw allows a local user with physical access to crash the system.
Clone Of:
Environment:
Last Closed: 2022-12-04 08:19:51 UTC


Attachments (Terms of Use)

Description Rohit Keshri 2022-10-17 09:50:12 UTC
drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-after-free if a physically proximate attacker removes a USB device while calling open(), aka a race condition between ufx_ops_open and ufx_usb_disconnect.

Reference:
https://lore.kernel.org/all/20220925133243.GA383897@ubuntu/T/

Comment 2 Product Security DevOps Team 2022-12-04 08:19:46 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-2022-41849


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