In the Linux kernel, the following vulnerability has been resolved:
media: intel/ipu6: do not handle interrupts when device is disabled
Some IPU6 devices have shared interrupts. We need to handle properly
case when interrupt is triggered from other device on shared irq line
and IPU6 itself disabled. In such case we get 0xffffffff from
ISR_STATUS register and handle all irq's cases, for what we are not
not prepared and usually hang the whole system.
To avoid the issue use pm_runtime_get_if_active() to check if
the device is enabled and prevent suspending it when we handle irq
until the end of irq. Additionally use synchronize_irq() in suspend
Metrics
Affected Vendors & Products
References
History
Thu, 09 Jan 2025 14:00:00 +0000
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cvssV3_1
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Sat, 28 Dec 2024 10:00:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: media: intel/ipu6: do not handle interrupts when device is disabled Some IPU6 devices have shared interrupts. We need to handle properly case when interrupt is triggered from other device on shared irq line and IPU6 itself disabled. In such case we get 0xffffffff from ISR_STATUS register and handle all irq's cases, for what we are not not prepared and usually hang the whole system. To avoid the issue use pm_runtime_get_if_active() to check if the device is enabled and prevent suspending it when we handle irq until the end of irq. Additionally use synchronize_irq() in suspend | |
Title | media: intel/ipu6: do not handle interrupts when device is disabled | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2024-12-28T09:46:08.936Z
Updated: 2025-01-20T06:25:48.642Z
Reserved: 2024-12-27T15:00:39.846Z
Link: CVE-2024-56680

No data.

Status : Received
Published: 2024-12-28T10:15:09.610
Modified: 2024-12-28T10:15:09.610
Link: CVE-2024-56680
