Bug 2267533 (CVE-2021-47080) - CVE-2021-47080 kernel: RDMA/core: Prevent divide-by-zero error triggered by the user
Summary: CVE-2021-47080 kernel: RDMA/core: Prevent divide-by-zero error triggered by t...
Keywords:
Status: NEW
Alias: CVE-2021-47080
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: 2267534
Blocks: 2267666
TreeView+ depends on / blocked
 
Reported: 2024-03-03 09:51 UTC by ybuenos
Modified: 2024-06-09 16:51 UTC (History)
50 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description ybuenos 2024-03-03 09:51:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

RDMA/core: Prevent divide-by-zero error triggered by the user

The Linux kernel CVE team has assigned CVE-2021-47080 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024030142-CVE-2021-47080-eb20@gregkh/T/#u
Comment 1 ybuenos 2024-03-03 09:52:12 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2267534]
Comment 5 Justin M. Forbes 2024-03-04 20:37:04 UTC 
This was fixed for Fedora with the 5.12.7 stable kernel updates.
Comment 6 Keith Grant 2024-05-23 18:15:31 UTC 
Fixed in RHEL 8.5: https://access.redhat.com/errata/RHSA-2021:4356
Comment 7 Alex 2024-06-09 16:51:49 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47080 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags KASAN  ; 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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