fkie_cve-2022-49212
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-10-01 20:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0856bf27057561f42b37df111603cf5a0d040294Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cfPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init\n\nThe reference counting issue happens in several error handling paths\non a refcounted object \"nc-\u003edmac\". In these paths, the function simply\nreturns the error code, forgetting to balance the reference count of\n\"nc-\u003edmac\", increased earlier by dma_request_channel(), which may\ncause refcount leaks.\n\nFix it by decrementing the refcount of specific object in those error\npaths."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mtd: rawnand: atmel: soluciona el problema de recuento de referencias en atmel_nand_controller_init El problema de recuento de referencias ocurre en varias rutas de manejo de errores en un objeto con recuento de referencias \"nc-\u0026gt;dmac\". En estas rutas, la funci\u00f3n simplemente devuelve el c\u00f3digo de error, olvidando equilibrar el recuento de referencias de \"nc-\u0026gt;dmac\", aumentado anteriormente por dma_request_channel(), lo que puede causar fugas de recuento de referencias. Arr\u00e9glelo disminuyendo el recuento de referencias de un objeto espec\u00edfico en esas rutas de error."
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  "id": "CVE-2022-49212",
  "lastModified": "2025-10-01T20:15:56.423",
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