VYPR
← All advisories
Unrated severityNVD Advisory· Published Dec 24, 2025· Updated Apr 15, 2026

CVE-2025-68352

CVE-2025-68352

Description

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

spi: ch341: fix out-of-bounds memory access in ch341_transfer_one

Discovered by Atuin - Automated Vulnerability Discovery Engine.

The 'len' variable is calculated as 'min(32, trans->len + 1)', which includes the 1-byte command header.

When copying data from 'trans->tx_buf' to 'ch341->tx_buf + 1', using 'len' as the length is incorrect because:

1. It causes an out-of-bounds read from 'trans->tx_buf' (which has size 'trans->len', i.e., 'len - 1' in this context). 2. It can cause an out-of-bounds write to 'ch341->tx_buf' if 'len' is CH341_PACKET_LENGTH (32). Writing 32 bytes to ch341->tx_buf + 1 overflows the buffer.

Fix this by copying 'len - 1' bytes.

AI Insight

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

Affected products

43

Patches

Vulnerability mechanics

References

4

News mentions

0

No linked articles in our index yet.