CVE-2026-23037 Details
Description
In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: allow partial RX URB allocation to succeed When es58x_alloc_rx_urbs() fails to allocate the requested number of URBs but succeeds in allocating some, it returns an error code. This causes es58x_open() to return early, skipping the cleanup label 'free_urbs', which leads to the anchored URBs being leaked. As pointed out by maintainer Vincent Mailhol, the driver is designed to handle partial URB allocation gracefully. Therefore, partial allocation should not be treated as a fatal error. Modify es58x_alloc_rx_urbs() to return 0 if at least one URB has been allocated, restoring the intended behavior and preventing the leak in es58x_open().
A vulnerability in the Linux kernel's handling of USB CAN interfaces, specifically within the ETAS ES58X driver, has been addressed. The issue arose in the function 'es58x_alloc_rx_urbs()', which incorrectly treated partial allocation of USB Request Blocks (URBs) as a fatal error. This mismanagement caused the 'es58x_open()' function to exit prematurely, leading to a leak of allocated URBs. The driver is intended to manage partial allocations properly, and the fix involves modifying the allocation function to return a success code when at least one URB is successfully allocated. This change restores the correct behavior and prevents resource leaks in the 'es58x_open()' function.
Users can apply the latest patches available in the Linux kernel stable tree to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jan 31, 2026References 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://cert-portal.siemens.com/productcert/html/ssa-253495.html | siemens-SADP | |
| https://git.kernel.org/stable/c/611e839d2d552416b498ed5593e10670f61fcd4d | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/6c5124a60989051799037834f0a1a4b428718157 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/97250eb05e4b6afe787290e8fd97d0675116c61b | kernel.org | |
| https://git.kernel.org/stable/c/aec888f44853584b5a7cd01249806030cf94a73d | kernel.org | |
| https://git.kernel.org/stable/c/b1979778e98569c1e78c2c7f16bb24d76541ab00 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/ba45e3d6b02c97dbb4578fbae7027fd66f3caa10 | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
| ETAS ES58X | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | siemens-SADP |
| Jun 2, 2026 | CVE Modified | siemens-SADP |
| Feb 6, 2026 | CVE Modified | kernel.org |
| Jan 31, 2026 | New CVE Received | kernel.org |