Bug 2122497 (CVE-2022-20148) - CVE-2022-20148 kernel: Use after free in f2fs_available_memory
Summary: CVE-2022-20148 kernel: Use after free in f2fs_available_memory
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2022-20148
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: 2122503
Blocks: 2122495
TreeView+ depends on / blocked
 
Reported: 2022-08-30 06:38 UTC by Wade Mealing
Modified: 2023-03-14 18:36 UTC (History)
49 users (show)

Fixed In Version: kernel-5.16-rc1
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Environment:
Last Closed: 2022-08-30 07:11:02 UTC
Embargoed:

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Description Wade Mealing 2022-08-30 06:38:34 UTC 
Fix this by stopping discard thread before f2fs_destroy_node_manager.
Comment 1 Wade Mealing 2022-08-30 07:00:15 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2122503]
Comment 5 Justin M. Forbes 2022-08-31 16:21:31 UTC 
This was fixed for Fedora with the 5.14.19 stable kernel update.
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