CVE-2022-49212
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".
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0856bf27057561f42b37df111603cf5a0d040294Patch
- https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93Patch
- https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1ePatch
- https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6Patch
- https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11Patch
- https://git.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878Patch
- https://git.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cfPatch
- https://git.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cfPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.