CVE-2025-39869

Advisory lineage Upstream: 0 Downstream: 48
Analyzed
Published: 23 Sept 2025, 06:00
Last modified:11 May 2026, 21:37

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (nvd)
EPSS Score
0.03% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Sept 2025, 06:00
Published
Vulnerability first disclosed
11 May 2026, 21:37
Last Modified
Vulnerability 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

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS Trends

Current EPSS score: 0.03%• Percentile: 8%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•debian_linux

    11.0

  • linux•linux

    ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 7d4de60d6db02d9b01d5890d5156b04fad65d07a | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < d722de80ce037dccf6931e778f4a46499d51bdf9 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 301a96cc4dc006c9a285913d301e681cfbf7edb6 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 5e462fa0dfdb52b3983cf41532d3d4c7d63e2f93 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 1baed10553fc8b388351d8fc803e3ae6f1a863bc | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < 069fd1688c57c0cc8a3de64d108579b31676f74b | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < d5e82f3f2c918d446df46e8d65f8083fd97cdec5 | ≥ 2b6b3b7420190888793c49e97276e1e73bd7eaed, < e63419dbf2ceb083c1651852209c7f048089ac0f | 4.4

  • linux•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

References (9)