CVE-2025-39935

Summary

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.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/cd59ca8f75dbb42a67fcae975c766114644e36c4
• https://git.kernel.org/stable/c/78338108b5a856dc98223a335f147846a8a18c51

• ←Previous
• Next→