Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ptdma: pt_core_execute_cmd() should use spinlock The interrupt handler (pt_core_irq_handler()) of the ptdma driver can be called from interrupt context. The code flow in this function can lead down to pt_core_execute_cmd() which will attempt to grab a mutex, which is not appropriate in interrupt context and ultimately leads to a kernel panic. The fix here changes this mutex to a spinlock, which has been verified to resolve the issue.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected fa5d823b16a9442d609617abeec31da8b6afa224 before ed0d8f731e0bf1bb12a7a37698ac613db20e2794; affected fa5d823b16a9442d609617abeec31da8b6afa224 before 13ba563c2c8055ba8a637c9f70bb833b43cb4207; affected fa5d823b16a9442d609617abeec31da8b6afa224 before 95e5fda3b5f9ed8239b145da3fa01e641cf5d53c |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.91 through 5.15.*; unaffected 6.1.9 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/ed0d8f731e0bf1bb12a7a37698ac613db20e2794
- https://git.kernel.org/stable/c/13ba563c2c8055ba8a637c9f70bb833b43cb4207
- https://git.kernel.org/stable/c/95e5fda3b5f9ed8239b145da3fa01e641cf5d53c
ADP enrichment
No English description supplied.
No references supplied.