CVE-2022-49212
mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init
Using Linux by Linux?
Get instant alerts when new vulnerabilities affect Linux - before attackers find them.
Description
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init The reference counting issue happens in several error handling paths on a refcounted object "nc->dmac". In these paths, the function simply returns the error code, forgetting to balance the reference count of "nc->dmac", increased earlier by dma_request_channel(), which may cause refcount leaks. Fix it by decrementing the refcount of specific object in those error paths.
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/0856bf27057561f42b37df111603cf5a0d040294
- https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93
- https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1e
- https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6
- https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11
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
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.