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CVE-2022-49010

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: hwmon: (coretemp) Check for null before removing sysfs attrs If coretemp_add_core() gets an error then pdata->core_data[indx] i…

Published Oct 21, 2024CWE-476EPSS 0.24%

Overview

CVE-2022-49010 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (coretemp) Check for null before removing sysfs attrs

If coretemp_add_core() gets an error then pdata->core_data[indx]

is already NULL and has been kfreed. Don't pass that to

sysfs_remove_group() as that will crash in sysfs_remove_group().

[Shortened for readability]

[91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label'

<cpu offline>

[91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188

[91855.165103] #PF: supervisor read access in kernel mode

[91855.194506] #PF: error_code(0x0000) - not-present page

[91855.224445] PGD 0 P4D 0

[91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI

...

[91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80

...

[91855.796571] Call Trace:

[91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp]

[91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp]

[91855.871107] cpuhp_invoke_callback+0x105/0x4b0

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009fRefgit.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75cRefgit.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16Refgit.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653Refgit.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82aRefgit.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95bRefgit.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05bRefgit.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49010?

CVE-2022-49010 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49010?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49010?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49010?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49010 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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