dmaengine: at_hdmac: fix device leak on of_dma_xlate()
In the Linux kernel, the following vulnerability has been resolved: dmaengine: at_hdmac: fix device leak on of_dma_xlate() Make sure to drop the reference taken when looking up the DMA platform device during of_dma_xlate() when releasing channel resources. Note that commit 3832b78b3ec2 ("dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate()") fixed the leak in a couple of error paths but the reference is still leaking on successful allocation.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: dmaengine: at_hdmac: fix device leak on of_dma_xlate() Make sure to drop the reference taken when looking up the DMA platform device during of_dma_xlate() when releasing channel resources. Note that commit 3832b78b3ec2 ("dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate()") fixed the leak in a couple of error paths but the reference is still leaking on successful allocation.
05 / REFERENCES
Further evidence
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/48b2d7f530b83cb149dbf0e48f95ccadb2d90da9
- https://git.kernel.org/stable/c/49d964cde422dc66fea514b7ab24aa729df7081d
- https://git.kernel.org/stable/c/4c67b4f45c8540ee4e62e24ca4608c6a9a81ee0f
- https://git.kernel.org/stable/c/6a86cf2c09e149d5718a5b7090545f7566da9334
- https://git.kernel.org/stable/c/987c71671367f42460689b78244d7b894c50999a
- https://git.kernel.org/stable/c/b9074b2d7a230b6e28caa23165e9d8bc0677d333
- https://git.kernel.org/stable/c/f3c23b7e941349505c3d40de2cc0acd93d9ac057
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71191.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-71191