VYPR
High severity7.8NVD Advisory· Published Oct 4, 2025· Updated Jul 30, 2026

CVE-2025-39935

CVE-2025-39935

Description

In the Linux kernel, the following vulnerability has been resolved:

ASoC: codec: sma1307: Fix memory corruption in sma1307_setting_loaded()

The sma1307->set.header_size is how many integers are in the header (there are 8 of them) but instead of allocating space of 8 integers we allocate 8 bytes. This leads to memory corruption when we copy data it on the next line:

memcpy(sma1307->set.header, data, sma1307->set.header_size * sizeof(int));

Also since we're immediately copying over the memory in ->set.header, there is no need to zero it in the allocator. Use devm_kmalloc_array() to allocate the memory instead.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

10
  • Linux/Kernel9 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.13,<6.16.9
    • 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:linux:linux_kernel:6.17:rc6:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 6.13
  • osv-coords
    Range: >= 6.13.0, < 6.16.9

Patches

Vulnerability mechanics

References

2

News mentions

0

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