7.8

CVE-2026-72476: dmaengine: Fix possible use after free

Received
AliasesUBUNTU-CVE-2026-72476DEBIAN-CVE-2026-72476
Published 15-08-2026Last modified 16-10-2026

Vulnerability summary

CVE-2026-72476 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 16 · Related 16
SUSE-SU-2026:4892-1USN-8875-1USN-8875-2USN-8876-1USN-8877-1USN-8878-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.17% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 444f96066937f3fdf0e79b53289cff223c7d638b | ≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < ab438a9efb9042c79d2f8db28a326d55feb8591f | ≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce | ≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 5876f38b67a309c00628942cb25679749b53b397 | ≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 3b0240483dc977dbec4f3bc7a5383d4691ecb625 | ≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 329ec20a86091d2a6e5b4fe507545e7d678a22a2 | ≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 0bc191050c3253da8ef4bfaf157c44efed6e22cd | ≥ 0f571515c332e00b3515dbe0859ceaa30ab66e00, < 92f853f0645aebf1d05d333e97ab7c342ace1892 | 2.6.30

3 vendors · 171 products

References

27 links
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