CVE-2026-80954
Description
In the Linux kernel, the following vulnerability has been resolved: i3c: Fix unlocked dereference of dev->desc in i3c_device_get_supported_xfer_mode() i3c_device_get_supported_xfer_mode() uses dev->desc to obtain the master controller. However, dev->desc must not be dereferenced unless bus->lock is held, and this function does not take that lock. The function only needs access to the master controller associated with the device's bus. Use dev->bus instead, which is always valid for the lifetime of the device and does not require dereferencing dev->desc.
How to fix
- Linux Linux251db58324ea4792c3f9f692ab09be148e051969, 8bed7f4fa710914b7f05fd59998316bfb4d43385 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 256a21743d911f94ce92fe28f793cd586f3860b2 ≤ v < 251db58324ea4792c3f9f692ab09be148e051969, 256a21743d911f94ce92fe28f793cd586f3860b2 ≤ v < 8bed7f4fa710914b7f05fd59998316bfb4d43385, 6.19 | 251db58324ea4792c3f9f692ab09be148e051969, 8bed7f4fa710914b7f05fd59998316bfb4d43385 |
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