CVE-2022-49367
net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In 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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.11
References 8
git.kernel.org
- stable/c/dc1cf8c6f9793546696fded437a5b4c84944c48b
- stable/c/86c3c5f8e4bd1325e24f6fba9017cade29933377
- stable/c/a101793994c0a14c70bb4e44c7fda597eeebba0a
- stable/c/42658e47f1abbbe592007d3ba303de466114d0bb
- stable/c/c1df9cb756e5a9ba1841648c44ee5d92306b9c65
- stable/c/e0d763d0c7665c7897e4f5a0847ab0c82543345f
- stable/c/8a1a1255152da4fb934290e7ababc66f24985520
- stable/c/02ded5a173619b11728b8bf75a3fd995a2c1ff28