CVE-2026-23155 Details
Description
In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): fix error message Sinc commit 79a6d1bfe114 ("can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error") a failing resubmit URB will print an info message. In the case of a short read where netdev has not yet been assigned, initialize as NULL to avoid dereferencing an undefined value. Also report the error value of the failed resubmit.
A vulnerability in the Linux kernel's gs_usb CAN driver has been addressed. The issue arose in the 'gs_usb_receive_bulk_callback' function, where a short read could lead to dereferencing a null value if the netdev had not been assigned. The vulnerability has been fixed by initializing the netdev as NULL in such cases, preventing the undefined value dereference. Additionally, the error value from failed USB request block (URB) resubmissions is now reported, enhancing the error handling of the function.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed.
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
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/494fc029f662c331e06b7c2031deff3c64200eed | kernel.org | Patch |
| https://git.kernel.org/stable/c/713ba826ae114ab339c9a1b31e209bebdadb0ac9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/7a431df418ee6b79841e0b4c7c265a791e3d0a75 | kernel.org | |
| https://git.kernel.org/stable/c/8986cdf52f86208df9c7887fee23365b5d37da26 | kernel.org | Patch |
| https://git.kernel.org/stable/c/923379f1d7e3af8ccbf11edbbcf41f1bb3e9cfe6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/aed58a28ea71a0d7d0947190fab1e3f4daa1d4a5 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | 6.6.122 6.12.68 6.18.8 6.19 rc7 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Apr 18, 2026 | CVE Modified | kernel.org |
| Mar 18, 2026 | Initial Analysis | [email protected] |
| Feb 14, 2026 | New CVE Received | kernel.org |