AZL-80685
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80685.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-80685
- Upstream
- Published
- 2026-03-25T11:16:34Z
- Modified
- 2026-08-28T17:46:32.778364632Z
- Summary
- CVE-2026-23357 affecting package kernel for versions less than 6.6.130.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
can: mcp251x: fix deadlock in error path of mcp251x_open
The mcp251xopen() function call freeirq() in its error path with the mpclock mutex held. But if an interrupt already occurred the interrupt handler will be waiting for the mpclock 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 = 1beforehand ensure that the IRQ handler will exit right away once it acquired the lock. - References