From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-cve-announce@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: CVE-2022-49029: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails
Date: Mon, 21 Oct 2024 22:07:01 +0200 [thread overview]
Message-ID: <2024102155-CVE-2022-49029-0ffd@gregkh> (raw)
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails
Smatch report warning as follows:
drivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn:
'&data->list' not removed from list
If ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will
be freed, but data->list will not be removed from driver_data.bmc_data,
then list traversal may cause UAF.
Fix by removeing it from driver_data.bmc_data before free().
The Linux kernel CVE team has assigned CVE-2022-49029 to this issue.
Affected and fixed versions
===========================
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 4.9.335 with commit f2a13196ad41
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 4.14.301 with commit 798198273bf8
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 4.19.268 with commit 24b9633f7db7
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 5.4.226 with commit 7b2b67fe1339
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 5.10.158 with commit 90907cd4d113
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 5.15.82 with commit 45f6e8186374
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 6.0.12 with commit e65cfd1f9cd2
Issue introduced in 2.6.24 with commit 57c7c3a0fdea and fixed in 6.1 with commit e2a87785aab0
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-2022-49029
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:
drivers/hwmon/ibmpex.c
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/f2a13196ad41c6c2ab058279dffe6c97292e753a
https://git.kernel.org/stable/c/798198273bf86673b970b51acdb35e57f42b3fcb
https://git.kernel.org/stable/c/24b9633f7db7f4809be7053df1d2e117e7c2de10
https://git.kernel.org/stable/c/7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3
https://git.kernel.org/stable/c/90907cd4d11351ff76c9a447bcb5db0e264c47cd
https://git.kernel.org/stable/c/45f6e81863747c0d7bc6a95ec51129900e71467a
https://git.kernel.org/stable/c/e65cfd1f9cd27d9c27ee5cb88128a9f79f25d863
https://git.kernel.org/stable/c/e2a87785aab0dac190ac89be6a9ba955e2c634f2
reply other threads:[~2024-10-21 20:14 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=2024102155-CVE-2022-49029-0ffd@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.