CVEvulnerability
CVE-2026-72476
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: Fix possible use after free
In dma_release_channel(), check chan->device->privatecnt after call
dma_chan_put(). However, dma_chan_put() call dma_device_put() which could
release the last reference of the device if the DMA provider is already
gone and hence free it.
Fixes it by moving dma_chan_put() after the check.
References
- https://git.kernel.org/stable/c/0bc191050c3253da8ef4bfaf157c44efed6e22cd git.kernel.org
- https://git.kernel.org/stable/c/329ec20a86091d2a6e5b4fe507545e7d678a22a2 git.kernel.org
- https://git.kernel.org/stable/c/3b0240483dc977dbec4f3bc7a5383d4691ecb625 git.kernel.org
- https://git.kernel.org/stable/c/444f96066937f3fdf0e79b53289cff223c7d638b git.kernel.org
- https://git.kernel.org/stable/c/5876f38b67a309c00628942cb25679749b53b397 git.kernel.org
- https://git.kernel.org/stable/c/92f853f0645aebf1d05d333e97ab7c342ace1892 git.kernel.org
- https://git.kernel.org/stable/c/9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce git.kernel.org
- https://git.kernel.org/stable/c/ab438a9efb9042c79d2f8db28a326d55feb8591f git.kernel.org