CVE-2026-64334 Details
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: digi_acceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently (e.g if the device is being disconnected) the driver would loop indefinitely with interrupts disabled. Check for urb submission errors when sending OOB commands to avoid hanging if, for example, open(), set_termios() or close() races with a physical disconnect. This is issue was flagged by Sashiko when reviewing an unrelated change to the driver.
A vulnerability in the Linux kernel's Digi Acceleport USB serial driver can cause a hard lockup when a device is disconnected. The issue arises because the driver enters an infinite loop with interrupts disabled if an Out-Of-Band (OOB) write request fails repeatedly, such as during a physical disconnection. This problem can be triggered by racing conditions with the open, set_termios, or close functions, leading to a deadlock situation. The vulnerability affects several versions of the Linux kernel.
Users can update to the latest version of the Linux kernel where this vulnerability has been addressed. Instructions for downloading the patched kernel can be found on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/2067b3838da6e4af03bae3630414193188d754b2 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2b7dc482f859f2d027db07ff0efc1c5df5b3451a | kernel.org | Patch |
| https://git.kernel.org/stable/c/5a82d842e8c35227d7227f19e5e654df1451782c | kernel.org | Patch |
| https://git.kernel.org/stable/c/5c1ea24b53bf3bfb859f0a05573997487975da23 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6a8592ace932081ea11aea41c460a1ca0f6344a4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6e51147c2744d15730084dc89cc99180d3de4184 | kernel.org | Patch |
| https://git.kernel.org/stable/c/79bc131df0e50f8f663c1fdbbe952aaf193a8d39 | kernel.org | Patch |
| https://git.kernel.org/stable/c/bcfeae431db9986c2b313e6a760f2ac8df61e138 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-667 | Improper Locking | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.12.1, < 5.10.261 >= 5.11, < 5.15.212 >= 5.16, < 6.1.178 >= 6.2, < 6.6.145 >= 6.7, < 6.12.96 >= 6.13, < 6.18.39 >= 6.19, < 7.1.4 2.6.12 - 2.6.12 rc2 2.6.12 rc3 2.6.12 rc4 2.6.12 rc5 7.2 rc1 7.2 rc2 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 3, 2026 | Initial Analysis | [email protected] |
| Aug 17, 2026 | CVE Modified | kernel.org |
| Jul 25, 2026 | New CVE Received | kernel.org |