Bug 2161999 (CVE-2022-44032) - CVE-2022-44032 Kernel: Race between cmm_open() and cm4000_detach() result in UAF
Summary: CVE-2022-44032 Kernel: Race between cmm_open() and cm4000_detach() result in UAF
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2022-44032
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: 2162005
Blocks: 2139046
TreeView+ depends on / blocked
 
Reported: 2023-01-18 14:37 UTC by Rohit Keshri
Modified: 2023-09-25 16:47 UTC (History)
39 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A possible race condition was found in drivers/char/pcmcia/cm4000_cs.c between the cmm_open() and the cm4000_detach() functions if the user physically removes the PCMCIA device in the Linux kernel. This flaw may eventually result in a use-after-free (UAF) flaw.
Clone Of:
Environment:
Last Closed: 2023-01-21 13:52:18 UTC
Embargoed:

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Description Rohit Keshri 2023-01-18 14:37:44 UTC 
A race condition may occur in drivers/char/pcmcia/cm4000_cs.c between cmm_open() and cm4000_detach() if the user physically removes the pcmcia device in the Linux kernel, This flaw may eventually result in UAF.

Reference:
https://lore.kernel.org/lkml/20220919040701.GA302806@ubuntu/
Comment 1 Rohit Keshri 2023-01-18 14:48:58 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2162005]
Comment 4 Product Security DevOps Team 2023-01-21 13:52:14 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-2022-44032
Comment 8 Justin M. Forbes 2023-09-25 16:47:35 UTC 
This was fixed with the 6.4 kernel series which removed these outdated drivers.
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