CVE-2022-49367
MediumIn the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register(). We don't need the device node after it. Add missing of_node_put() to avoid refcount leak.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
4.11
and later are affected. Fixed in
4.14.283,
4.19.247,
5.4.198,
5.10.122,
5.15.47,
5.17.15,
5.18.4,
5.19
and their respective stable series.
References
The following references provide additional information about CVE-2022-49367 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/02ded5a173619b11728b8bf75a3fd995a2c1ff28
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PatchKernel patch commithttps://git.kernel.org/stable/c/42658e47f1abbbe592007d3ba303de466114d0bb
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PatchKernel patch commithttps://git.kernel.org/stable/c/86c3c5f8e4bd1325e24f6fba9017cade29933377
Frequently asked questions
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What is CVE-2022-49367?
CVE-2022-49367 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.11 onward and has been patched in 4.14.283, 4.19.247, 5.4.198 and others. CVE-2022-49367 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-49367?
CVE-2022-49367 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-49367?
Yes — CVE-2022-49367 has been patched. Fixed versions include 4.14.283, 4.19.247, 5.4.198 and others. If you are running Linux kernel 4.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-49367 actively exploited?
No — CVE-2022-49367 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.