CVE-2022-49678
soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe
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Description
In the Linux kernel, the following vulnerability has been resolved: soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. In brcmstb_init_sram, it pass dn to of_address_to_resource(), of_address_to_resource() will call of_find_device_by_node() to take reference, so we should release the reference returned by of_find_matching_node().
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/10ba9d499a9fd82ed40897e734ba19870a879407
- https://git.kernel.org/stable/c/30bbfeb480ae8b5ee43199d72417b232590440c2
- https://git.kernel.org/stable/c/37d838de369b07b596c19ff3662bf0293fdb09ee
- https://git.kernel.org/stable/c/4f5877bdf7b593e988f1924f4c3df6523f80b39c
- https://git.kernel.org/stable/c/734a4d15142bb4c8ecad2d8ec70d7564e78ae34d
References (6)
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
- NONE
- Integrity
- NONE
- Availability
- HIGH
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