CVE-2023-53308
net: fec: Better handle pm_runtime_get() failing in .remove()
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Description
In the Linux kernel, the following vulnerability has been resolved: net: fec: Better handle pm_runtime_get() failing in .remove() In the (unlikely) event that pm_runtime_get() (disguised as pm_runtime_resume_and_get()) fails, the remove callback returned an error early. The problem with this is that the driver core ignores the error value and continues removing the device. This results in a resource leak. Worse the devm allocated resources are freed and so if a callback of the driver is called later the register mapping is already gone which probably results in a crash.
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/83996d317b1deddc85006376082e8886f55aa709
- https://git.kernel.org/stable/c/9407454a9b18bbeff216e8ecde87ffb2171e9ccf
- https://git.kernel.org/stable/c/b22b514209ff8c4287abb853399890ab97e1b5ca
- https://git.kernel.org/stable/c/be85912c36ddca3e8b2eef1b5392cd8db6bdb730
- https://git.kernel.org/stable/c/c1bc2870f14e526a01897e14c747a0a0ca125231
References (8)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
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