CVE-2026-72476

HIGHCVSS 7.8/10EPSS 0.22%

Last modified

CVE-2026-72476 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.22%

12.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 444f96066937f3fdf0e79b53289cff223c7d638b; >= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < ab438a9efb9042c79d2f8db28a326d55feb8591f; >= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce; >= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 5876f38b67a309c00628942cb25679749b53b397; >= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 3b0240483dc977dbec4f3bc7a5383d4691ecb625; >= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 329ec20a86091d2a6e5b4fe507545e7d678a22a2; >= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 0bc191050c3253da8ef4bfaf157c44efed6e22cd; >= 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 92f853f0645aebf1d05d333e97ab7c342ace1892
LinuxLinux2.6.30

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-72476?
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.
How severe is CVE-2026-72476?
CVE-2026-72476 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-72476?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST