CVE-2022-50474
macintosh: fix possible memory leak in macio_add_one_device()
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Description
In the Linux kernel, the following vulnerability has been resolved: macintosh: fix possible memory leak in macio_add_one_device() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically. It needs to be freed when of_device_register() fails. Call put_device() to give up the reference that's taken in device_initialize(), so that it can be freed in kobject_cleanup() when the refcount hits 0. macio device is freed in macio_release_dev(), so the kfree() can be removed.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/3a866ff6fc2232c8e393cdb55ffb8ce947349e03
- https://git.kernel.org/stable/c/aa9054267366ff0a382d403d17728e21951ddbb9
- https://git.kernel.org/stable/c/35858b87a943917fa30172aa4bf01ce7adbcb42c
- https://git.kernel.org/stable/c/b29a2f1dd33ae9b94821ab2f4d398b9081786748
- https://git.kernel.org/stable/c/2ac0a7059b7bcbed35bfffa34a82c9a9e99638ef
References (9)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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