Bug 2266844 (CVE-2021-47012) - CVE-2021-47012 kernel: RDMA/siw: Fix a use after free in siw_alloc_mr
Summary: CVE-2021-47012 kernel: RDMA/siw: Fix a use after free in siw_alloc_mr
Keywords:
Status: NEW
Alias: CVE-2021-47012
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2266846
Blocks: 2266939
TreeView+ depends on / blocked
 
Reported: 2024-02-29 07:32 UTC by Avinash Hanwate
Modified: 2024-06-09 15:05 UTC (History)
50 users (show)

Fixed In Version: kernel 5.4.119, kernel 5.10.37, kernel 5.11.21, kernel 5.12.4, kernel 5.13
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Description Avinash Hanwate 2024-02-29 07:32:47 UTC
In the Linux kernel, the following vulnerability has been resolved:

RDMA/siw: Fix a use after free in siw_alloc_mr

The Linux kernel CVE team has assigned CVE-2021-47012 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022831-CVE-2021-47012-73c5@gregkh/T/#u

Comment 1 Avinash Hanwate 2024-02-29 07:33:24 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2266846]

Comment 5 Justin M. Forbes 2024-03-01 22:18:35 UTC
This was fixed for Fedora with the 5.12.4 stable kernel updates.

Comment 6 Alex 2024-06-09 15:05:25 UTC
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47012 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags SIMPLEFIX UAF  ; these flags parsed automatically based on patche 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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