Bug 2267179 (CVE-2021-47058) - CVE-2021-47058 kernel: use-after-free regmap: set debugfs_name to NULL after it is freed
Summary: CVE-2021-47058 kernel: use-after-free regmap: set debugfs_name to NULL after ...
Keywords:
Status: NEW
Alias: CVE-2021-47058
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2267180
Blocks: 2267188
TreeView+ depends on / blocked
 
Reported: 2024-03-01 05:03 UTC by Avinash Hanwate
Modified: 2024-06-09 16:28 UTC (History)
50 users (show)

Fixed In Version: kernel 4.19.191, kernel 5.4.119, kernel 5.10.37, kernel 5.11.21, kernel 5.12.4, kernel 5.13
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description Avinash Hanwate 2024-03-01 05:03:00 UTC 
In the Linux kernel, the following vulnerability has been resolved:

regmap: set debugfs_name to NULL after it is freed

The Linux kernel CVE team has assigned CVE-2021-47058 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022951-CVE-2021-47058-3130@gregkh/T/#u
Comment 1 Avinash Hanwate 2024-03-01 05:03:36 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2267180]
Comment 5 Justin M. Forbes 2024-03-01 20:48:52 UTC 
This was fixed for Fedora with the 5.12.4 stable kernel updates.
Comment 7 Alex 2024-06-09 16:28:00 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47058 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags INIT SIMPLEFIX LEAK  ; these flags parsed automatically based on patch data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.
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