CVE-2026-43217
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Kernel Memory Corruption in Linux Iris Gen2 Driver

Publication date: 2026-05-06

Last updated on: 2026-05-06

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: iris: gen2: Add sanity check for session stop In iris_kill_session, inst->state is set to IRIS_INST_ERROR and session_close is executed, which will kfree(inst_hfi_gen2->packet). If stop_streaming is called afterward, it will cause a crash. Add a NULL check for inst_hfi_gen2->packet before sendling STOP packet to firmware to fix that.
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Meta Information
Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-05-07
AI Q&A
2026-05-06
EPSS Evaluated
N/A
NVD
CVE-2026-43217
EUVD
EUVD-2026-27779
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel *
linux kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the Linux kernel's media iris gen2 driver. When a session is stopped using iris_kill_session, the instance state is set to an error state and the session_close function frees a packet buffer. However, if stop_streaming is called afterward, it attempts to use the already freed packet, causing a crash. The fix involves adding a NULL check for the packet before sending a STOP packet to the firmware.


How can this vulnerability impact me? :

This vulnerability can cause the Linux kernel to crash when stop_streaming is called after a session has been killed and its resources freed. Such a crash can lead to system instability, denial of service, or unexpected reboots, potentially disrupting normal operations.


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