CVE-2026-23357
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-03-25
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (18)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < 739454057572cb0948658d1142f3fa2c6966465c |
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < 416c18ecddafab0ed09be1e7b9d2f448f3d4db16 |
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < 256f0cff6e946c570392bda1d01a65e789a7afd0 |
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < b73832292cd914e87a55e863ba4413a907e7db6b |
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < 38063cc435b69d56e76f947c10d336fcb2953508 |
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < d27f12c3f5e85efc479896af4a69eccb37f75e8e |
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < e728f444c913a91d290d1824b4770780bbd6378e |
| Linux | Linux | bf66f3736a945dd4e92d86427276c6eeab0a6c1d < ab3f894de216f4a62adc3b57e9191888cbf26885 |
| Linux | Linux | 2.6.34 |
| linux | linux_kernel | 2.6.34.1 – 5.10.253 |
| linux | linux_kernel | 2.6.34 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |