Bug 2041547 (CVE-2022-0264) - CVE-2022-0264 kernel: address leakage in BPF atomic fetch
Summary: CVE-2022-0264 kernel: address leakage in BPF atomic fetch
Keywords:
Status: NEW
Alias: CVE-2022-0264
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2041548 2046633 2046634 2046636 2046637
Blocks: 2039885
TreeView+ depends on / blocked
 
Reported: 2022-01-17 16:51 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-11-16 07:49 UTC (History)
41 users (show)

Fixed In Version: kernel 5.16-rc6
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description Guilherme de Almeida Suckevicz 2022-01-17 16:51:37 UTC 
A flaw was found in the Linux kernel. There is an address leakage in BPF atomic fetch.  This allows a local user with the ability to insert EBPF rules to be able to gather additional information for further attacks on the kernel.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=7d3baf0afa3aa9102d6a521a8e4c41888bb79882
Comment 1 Guilherme de Almeida Suckevicz 2022-01-17 16:52:58 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2041548]
Comment 2 Justin M. Forbes 2022-01-17 22:18:10 UTC 
This was fixed for Fedora with the 5.15.11 stable kernel updates.
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