CVE-2025-71191
Published: February 3, 2026Last modified: February 20, 2026
Description
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.163-r0) |
| 25 LTS | linux-lts | Fixed (6.12.73-r0) | |
| Stream | linux-lts | Fixed (6.12.67-r0) |
References
- 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