Bug 2143906 (CVE-2022-3523) - CVE-2022-3523 Kernel: race when faulting a device private page in memory manager
Summary: CVE-2022-3523 Kernel: race when faulting a device private page in memory manager
Keywords:
Status: NEW
Alias: CVE-2022-3523
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2143929 2143930 2159905
Blocks: 2143917
TreeView+ depends on / blocked
 
Reported: 2022-11-18 09:58 UTC by Rohit Keshri
Modified: 2023-11-09 07:10 UTC (History)
49 users (show)

Fixed In Version: kernel 6.1 rc1
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2023:6835 0 None None None 2023-11-09 07:10:39 UTC
Red Hat Product Errata RHSA-2023:6583 0 None None None 2023-11-07 08:20:00 UTC

Description Rohit Keshri 2022-11-18 09:58:45 UTC 
A number of page reference counting issues in drivers dealing with device private ZONE_DEVICE pages.  These result in use-after-free type bugs, either from accessing a struct page which no longer exists because it has been removed or accessing fields within the struct page which are no longer valid because the page has been freed.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16ce101db85db694a91380aa4c89b25530871d33
Comment 9 errata-xmlrpc 2023-11-07 08:19:56 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6583 https://access.redhat.com/errata/RHSA-2023:6583
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