Bug 2269856 (CVE-2021-47118) - CVE-2021-47118 kernel: pid: take a reference when initializing `cad_pid`
Summary: CVE-2021-47118 kernel: pid: take a reference when initializing `cad_pid`
Keywords:
Status: NEW
Alias: CVE-2021-47118
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: 2269858
Blocks: 2269857
TreeView+ depends on / blocked
 
Reported: 2024-03-16 18:33 UTC by Avinash Hanwate
Modified: 2024-06-10 15:11 UTC (History)
50 users (show)

Fixed In Version: kernel 4.4.272, kernel 4.9.272, kernel 4.14.236, kernel 4.19.194, kernel 5.4.125, kernel 5.10.43, kernel 5.12.10, kernel 5.13
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:3622 0 None None None 2024-06-05 09:02:56 UTC
Red Hat Product Errata RHBA-2024:3773 0 None None None 2024-06-10 15:11:23 UTC
Red Hat Product Errata RHSA-2024:3618 0 None None None 2024-06-05 00:31:31 UTC
Red Hat Product Errata RHSA-2024:3627 0 None None None 2024-06-05 10:04:39 UTC

Description Avinash Hanwate 2024-03-16 18:33:04 UTC 
In the Linux kernel, the following vulnerability has been resolved:

pid: take a reference when initializing `cad_pid`

The Linux kernel CVE team has assigned CVE-2021-47118 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024031509-CVE-2021-47118-faf2@gregkh/T/#u
Comment 1 Avinash Hanwate 2024-03-16 18:33:40 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2269858]
Comment 5 Justin M. Forbes 2024-03-26 16:19:58 UTC 
This was fixed for Fedora with the 5.12.10 stable kernel updates.
Comment 7 errata-xmlrpc 2024-06-05 00:31:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3618 https://access.redhat.com/errata/RHSA-2024:3618
Comment 8 errata-xmlrpc 2024-06-05 10:04:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3627 https://access.redhat.com/errata/RHSA-2024:3627
Comment 9 Alex 2024-06-09 17:04:02 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47118 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags READ KASAN INIT UAF  ; 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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