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CVE-2026-72476

dmaengine: Fix possible use after free

HIGH
7.8
CVSS Score
Published: August 15, 2026 at 05:57 AM UTC
Updated: October 16, 2026 at 07:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
0f571515c332e00b3515dbe0859ceaa30ab66e002.6.30
Vendor states this is fixed in 0bc191050c3253da8ef4bfaf157c44efed6e22cd (fixed)
Vendor states this is fixed in 329ec20a86091d2a6e5b4fe507545e7d678a22a2 (fixed)
Vendor states this is fixed in 3b0240483dc977dbec4f3bc7a5383d4691ecb625 (fixed)
Vendor states this is fixed in 444f96066937f3fdf0e79b53289cff223c7d638b (fixed)
Vendor states this is fixed in 5876f38b67a309c00628942cb25679749b53b397 (fixed)
Vendor states this is fixed in 92f853f0645aebf1d05d333e97ab7c342ace1892 (fixed)
Vendor states this is fixed in 9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce (fixed)
Vendor states this is fixed in ab438a9efb9042c79d2f8db28a326d55feb8591f (fixed)
Vendor states this is fixed in 2.6.30 (unaffected)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/444f96066937f3fdf0e79b53289cff223c7d638b
Source: cverecord
https://git.kernel.org/stable/c/ab438a9efb9042c79d2f8db28a326d55feb8591f
Source: cverecord
https://git.kernel.org/stable/c/9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce
Source: cverecord
https://git.kernel.org/stable/c/5876f38b67a309c00628942cb25679749b53b397
Source: cverecord
https://git.kernel.org/stable/c/3b0240483dc977dbec4f3bc7a5383d4691ecb625
Source: cverecord
https://git.kernel.org/stable/c/329ec20a86091d2a6e5b4fe507545e7d678a22a2
Source: cverecord
https://git.kernel.org/stable/c/0bc191050c3253da8ef4bfaf157c44efed6e22cd
Source: cverecord
https://git.kernel.org/stable/c/92f853f0645aebf1d05d333e97ab7c342ace1892

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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