CVE-2022-50480
memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe()
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Description
In the Linux kernel, the following vulnerability has been resolved: memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe() The break of for_each_available_child_of_node() needs a corresponding of_node_put() when the reference 'child' is not used anymore. Here we do not need to call of_node_put() in fail path as '!match' means no break. While the of_platform_device_create() will created a new reference by 'child' but it has considered the refcounting.
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/b37f4a711e5d4bf3608ccbc6de82b52e92b441a0
- https://git.kernel.org/stable/c/fde46754d5483bc398018bbec3c8ef5c55219e67
- https://git.kernel.org/stable/c/566b143aa5112a0c2784e20603778518bb799537
- https://git.kernel.org/stable/c/44db35ceb94756ba513dcf6b69bf9e949b28469c
- https://git.kernel.org/stable/c/49605dc25e7fb33bf8b671279d4468531da90f89
References (6)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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