CVE-2025-68352: Linux hwe edge · In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix out-of-bounds memory access in ch341_transfer_one Discovered by
Affects linux-hwe-edgeSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 6.17.0-1018.18 : patch linux-hwe-edge soon.
Data as of 26 Oct 2026, 08:11 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.17.0-1018.18, 6.17.0-1010.10~24.04.1, 6.17.0-1009.9~24.04.3 +2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| linux-hwe-edge | Affected
| Fixed in
|
AI-suggested
A fix for this vulnerability has been implemented in the Linux kernel by correcting the length of bytes copied in the ch341_transfer_one function. Users should apply the official kernel updates or patches that include this fix. Patch status is not explicitly confirmed in the provided data; therefore, check the vendor or Linux kernel advisory for the latest remediation guidance.
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.
References
- nvd.nist.gov/vuln/detail/CVE-2025-68352 (opens in a new tab)
- git.kernel.org/stable/c/545d1287e40a55242f6ab68bcc1ba3b74088b1bc (opens in a new tab)
- git.kernel.org/stable/c/81841da1f30f66a850cc8796d99ba330aad9d696 (opens in a new tab)
- git.kernel.org/stable/c/cad6c0fd6f3c0e76a1f75df4bce3b08a13f08974 (opens in a new tab)
- git.kernel.org/stable/c/ea1e43966cd03098fcd5f0d72e6c2901d45fa08d (opens in a new tab)
- ubuntu.com/security/CVE-2025-68352 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-68352 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-8152-1 (opens in a new tab)