FKIE_CVE-2022-49746

Vulnerability from fkie_nvd - Published: 2025-03-27 17:15 - Updated: 2025-10-01 18:15
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: dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init If the function sdma_load_context() fails, the sdma_desc will be freed, but the allocated desc->bd is forgot to be freed. We already met the sdma_load_context() failure case and the log as below: [ 450.699064] imx-sdma 30bd0000.dma-controller: Timeout waiting for CH0 ready ... In this case, the desc->bd will not be freed without this change.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1417f59ac0b02130ee56c0c50794b9b257be3d17Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/43acd767bd90c5d4172ce7fee5d9007a9a08dea9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80ee99e52936b2c04cc37b17a14b2ae2f9d282acPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bd0050b7ffa87c7b260d563646af612f4112a778Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce4745a6b8016fae74c95dcd457d4ceef7d98af1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dbe634ce824329d8f14079c3e9f8f11670894becPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2
linux linux_kernel 6.2
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init\n\nIf the function sdma_load_context() fails, the sdma_desc will be\nfreed, but the allocated desc-\u003ebd is forgot to be freed.\n\nWe already met the sdma_load_context() failure case and the log as\nbelow:\n[ 450.699064] imx-sdma 30bd0000.dma-controller: Timeout waiting for CH0 ready\n...\n\nIn this case, the desc-\u003ebd will not be freed without this change."
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Detection rules are retrieved from Rulezet.