From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-cve-announce@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: CVE-2022-49601: tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept.
Date: Wed, 26 Feb 2025 03:22:44 +0100 [thread overview]
Message-ID: <2025022611-CVE-2022-49601-75fc@gregkh> (raw)
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept.
While reading sysctl_tcp_fwmark_accept, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.
The Linux kernel CVE team has assigned CVE-2022-49601 to this issue.
Affected and fixed versions
===========================
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 4.9.325 with commit 13207f9485b5de68decf296ceb0046f5eabb2485
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 4.14.290 with commit 45fc82706a97242539d6b841ddd7a077ec20757b
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 4.19.254 with commit abf70de2ec026ae8d7da4e79bec61888a880e00b
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.4.208 with commit a7386602a2fe2f6192477e8ede291a815da09d81
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.10.134 with commit d4f65615db7fca3df9f7e79eadf937e6ddb03c54
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.15.58 with commit bf3134feffe61b7a0e21f60a04743f8da0958b53
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.18.15 with commit 526d8cf8824f613c72dba2155542295e70135f62
Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.19 with commit 1a0008f9df59451d0a17806c1ee1a19857032fa8
Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.
Unaffected versions might change over time as fixes are backported to
older supported kernel versions. The official CVE entry at
https://cve.org/CVERecord/?id=CVE-2022-49601
will be updated if fixes are backported, please check that for the most
up to date information about this issue.
Affected files
==============
The file(s) affected by this issue are:
include/net/inet_sock.h
Mitigation
==========
The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes. Individual
changes are never tested alone, but rather are part of a larger kernel
release. Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all. If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
https://git.kernel.org/stable/c/13207f9485b5de68decf296ceb0046f5eabb2485
https://git.kernel.org/stable/c/45fc82706a97242539d6b841ddd7a077ec20757b
https://git.kernel.org/stable/c/abf70de2ec026ae8d7da4e79bec61888a880e00b
https://git.kernel.org/stable/c/a7386602a2fe2f6192477e8ede291a815da09d81
https://git.kernel.org/stable/c/d4f65615db7fca3df9f7e79eadf937e6ddb03c54
https://git.kernel.org/stable/c/bf3134feffe61b7a0e21f60a04743f8da0958b53
https://git.kernel.org/stable/c/526d8cf8824f613c72dba2155542295e70135f62
https://git.kernel.org/stable/c/1a0008f9df59451d0a17806c1ee1a19857032fa8
reply other threads:[~2025-02-26 2:24 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2025022611-CVE-2022-49601-75fc@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=cve@kernel.org \
--cc=linux-cve-announce@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.