In the Linux kernel, the following vulnerability has been resolved:
firewire: core: fix invalid port index for parent device
In a commit 24b7f8e5cd65 ("firewire: core: use helper functions for self ID sequence"), the enumeration over self ID sequence was refactored with some helper functions with KUnit tests. These helper functions are guaranteed to work expectedly by the KUnit tests, however their application includes a mistake to assign invalid value to the index of port connected to parent device.
This bug affects the case that any extra node devices which has three or more ports are connected to 1394 OHCI controller. In the case, the path to update the tree cache could hits WARN_ON(), and gets general protection fault due to the access to invalid address computed by the invalid value.
This commit fixes the bug to assign correct port index.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Nov 5, 2024 |
| Ubuntu | — | Upgrade linux-image-oem-24.04bUpgrade linux-image-oracleUpgrade linux-image-generic-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-realtimeUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-genericUpgrade linux-image-oracle-64kUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-virtualUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-lowlatencyUpgrade linux-image-raspiUpgrade linux-image-awsUpgrade linux-image-azureUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-azure-fdeUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-realtime-hwe-24.04 | Feb 20, 2025 | Nov 5, 2024 |
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