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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-23357 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock in error path of mcp251x_open The mcp251x_open() function call free_irq() in its error path with the mpc_lock mutex held. But if an interrupt already occurred the interrupt handler will be waiting for the mpc_lock and free_irq() will deadlock waiting for the handler to finish. This issue is similar to the one fixed in commit 7dd9c26bd6cf ("can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open") but for the error path. To solve this issue move the call to free_irq() after the lock is released. Setting `priv->force_quit = 1` beforehand ensure that the IRQ handler will exit right away once it acquired the lock.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/256f0cff6e946c570392bda1d01a65e789a7afd0 kernel.org Patch 
https://git.kernel.org/stable/c/38063cc435b69d56e76f947c10d336fcb2953508 kernel.org Patch 
https://git.kernel.org/stable/c/416c18ecddafab0ed09be1e7b9d2f448f3d4db16 kernel.org Patch 
https://git.kernel.org/stable/c/739454057572cb0948658d1142f3fa2c6966465c kernel.org Patch 
https://git.kernel.org/stable/c/ab3f894de216f4a62adc3b57e9191888cbf26885 kernel.org Patch 
https://git.kernel.org/stable/c/b73832292cd914e87a55e863ba4413a907e7db6b kernel.org Patch 
https://git.kernel.org/stable/c/d27f12c3f5e85efc479896af4a69eccb37f75e8e kernel.org Patch 
https://git.kernel.org/stable/c/e728f444c913a91d290d1824b4770780bbd6378e kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-667 Improper Locking cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23357
NVD Published Date:
03/25/2026
NVD Last Modified:
04/24/2026
Source:
kernel.org