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CVE-2025-39869

7.1 high Modified

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.

Fix

Patch, vendor advisory and mitigation references on NVD 8

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.1 · linux, debianNVD modified 2026-10-19 21:10

Affected (CPE criteria) 7

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References 9