CVE-2022-49212
Last modified
CVE-2022-49212 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.12, < 4.14.276 |
| Linux | Linux Kernel | >= 4.15, < 4.19.238 |
| Linux | Linux Kernel | >= 4.20, < 5.4.189 |
| Linux | Linux Kernel | >= 5.5, < 5.10.110 |
| Linux | Linux Kernel | >= 5.11, < 5.15.33 |
| Linux | Linux Kernel | >= 5.16, < 5.16.19 |
| Linux | Linux Kernel | >= 5.17, < 5.17.2 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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