8.4

CVE-2025-39869: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map

Modified
AliasesUBUNTU-CVE-2025-39869DEBIAN-CVE-2025-39869
Published 23-09-2025Last modified 05-08-2026

Vulnerability summary

CVE-2025-39869 is a high (CVSS 8.4) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.4, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.16%
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 48 · Related 44
DLA-4328-1DLA-4404-1MGASA-2025-0309MGASA-2025-0310OPENSUSE-SU-2025:20081-1SUSE-SU-2025:03600-1

Timeline

  1. 23-09-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Fix a critical memory allocation bug in edma_setup_from_hw() where queue_priority_map was allocated with insufficient memory. The code declared queue_priority_map as s8 (*)[2] (pointer to array of 2 s8), but allocated memory using sizeof(s8) instead of the correct size. This caused out-of-bounds memory writes when accessing: queue_priority_map[i][0] = i; queue_priority_map[i][1] = i; The bug manifested as kernel crashes with "Oops - undefined instruction" on ARM platforms (BeagleBoard-X15) during EDMA driver probe, as the memory corruption triggered kernel hardening features on Clang. Change the allocation to use sizeof(*queue_priority_map) which automatically gets the correct size for the 2D array structure.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% 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

Affected systems

Version check

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

Ubuntu148 products
  • linuxAll versions (No fix recorded) | < 5.15.0-170.180 | < 6.8.0-106.106
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1100.107 | < 6.8.0-1050.53
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.153-1 | < 6.12.48-1 | < 6.16.8-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 7d4de60d6db02d9b01d5890d5156b04fad65d07a | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < d722de80ce037dccf6931e778f4a46499d51bdf9 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 301a96cc4dc006c9a285913d301e681cfbf7edb6 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 5e462fa0dfdb52b3983cf41532d3d4c7d63e2f93 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 1baed10553fc8b388351d8fc803e3ae6f1a863bc | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 069fd1688c57c0cc8a3de64d108579b31676f74b | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < d5e82f3f2c918d446df46e8d65f8083fd97cdec5 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < e63419dbf2ceb083c1651852209c7f048089ac0f | 4.4
  • linux_kernel≥ 4.4, < 5.4.300 | ≥ 5.5, < 5.10.245 | ≥ 5.11, < 5.15.194 | ≥ 5.16, < 6.1.153 | ≥ 6.2, < 6.6.107 | ≥ 6.7, < 6.12.48 | ≥ 6.13, < 6.16.8 | 6.17:rc1 | 6.17:rc2 | 6.17:rc3 | 6.17:rc4 | 6.17:rc5

3 vendors · 152 products

References

37 links
Show all 37 references