dmaengine: stm32: dmamux: fix device leak on route allocation
In the Linux kernel, the following vulnerability has been resolved: dmaengine: stm32: dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: dmaengine: stm32: dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.
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/1a179ac01ff3993ab97e33cc77c316ed7415cda1
- https://git.kernel.org/stable/c/1dda2a32303df0091896b01a9d09070d61fa344c
- https://git.kernel.org/stable/c/2fb10259d4efb4367787b5ae9c94192e8a91c648
- https://git.kernel.org/stable/c/3b42020e6790a5e19b36c187ed5b488a5716f97f
- https://git.kernel.org/stable/c/3ef52d31cce8ba816739085a61efe07b63c6cf27
- https://git.kernel.org/stable/c/6393da54dcb3488c080a183c4182ddec71ba8d7f
- https://git.kernel.org/stable/c/dd6e4943889fb354efa3f700e42739da9bddb6ef
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71186.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-71186