Bug 2283386 (CVE-2021-47563) - CVE-2021-47563 kernel: ice: avoid bpf_prog refcount underflow
Summary: CVE-2021-47563 kernel: ice: avoid bpf_prog refcount underflow
Keywords:
Status: NEW
Alias: CVE-2021-47563
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:
Blocks: 2283496
TreeView+ depends on / blocked
 
Reported: 2024-05-27 09:30 UTC by ybuenos
Modified: 2024-09-27 16:34 UTC (History)
50 users (show)

Fixed In Version: kernel 5.10.83, kernel 5.15.6, kernel 5.16
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description ybuenos 2024-05-27 09:30:01 UTC
In the Linux kernel, the following vulnerability has been resolved:

ice: avoid bpf_prog refcount underflow

The Linux kernel CVE team has assigned CVE-2021-47563 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052452-CVE-2021-47563-008a@gregkh/T

Comment 2 Alex 2024-06-09 15:44:13 UTC
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47563 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE BPF NETWORK  ; 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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