Bug 2334675 (CVE-2024-56680) - CVE-2024-56680 kernel: media: intel/ipu6: do not handle interrupts when device is disabled
Summary: CVE-2024-56680 kernel: media: intel/ipu6: do not handle interrupts when devic...
Keywords:
Status: NEW
Alias: CVE-2024-56680
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-12-28 10:01 UTC by OSIDB Bzimport
Modified: 2025-01-08 13:54 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2024-12-28 10:01:52 UTC
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

Comment 1 Avinash Hanwate 2024-12-29 06:53:35 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122832-CVE-2024-56680-fac9@gregkh/T


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