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.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade python3-perf-debuginfoUpgrade python3-perfUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade kernelUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-develUpgrade kernel-livepatch-6.1.180-225.360Upgrade kernel-modules-extra-commonUpgrade perf-debuginfoUpgrade kernel-modules-extraUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-headersUpgrade kernel-develUpgrade bpftool-debuginfoUpgrade perf | Sep 1, 2026 | Aug 15, 2026 |
| Debian | — | Upgrade linux | Aug 16, 2026 | Aug 16, 2026 |
| Redhat_linux | — | No solution exists | Aug 21, 2026 | Aug 15, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 21, 2026 | Aug 15, 2026 |
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