CVE-2026-80680
High
Description
In the Linux kernel, the following vulnerability has been resolved: i2c: amd-mp2: Unregister callback on adapter add failure amd_mp2_register_cb() stores the platform I2C context in the MP2 PCI driver's callback table before the adapter is registered. If i2c_add_adapter() fails, probe returns and devres frees the context, but the PCI driver can still dereference the stale pointer from its IRQ and system-sleep callbacks. Unregister the callback before returning the adapter registration error.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedAug 28, 2026
First seenAug 28, 2026
How to fix
Update
- Linux Linux9142a3dcff0d80a3a24ce159aee19ddc869d9784, 2f7789b3a9628819ebf90bcba8f9da3c139f8687, 4786d4d70dcd1e6b7e044f2348e00f201947b69c, b7c2c5c8868737926410b93d1223ada17625ead3, cf107c5983dc70fcf932a305581a5f976d908ff1, 1883a09a37fed497b9efacf736c23624a472246b, 8bf719659406e4a1b56d441e0c7da2085d891d96, 82048795242f04275a3f49ffc66ad851b6120954 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 529766e0a0114438887382a68d97341fbf8349fb ≤ v < 9142a3dcff0d80a3a24ce159aee19ddc869d9784, 529766e0a0114438887382a68d97341fbf8349fb ≤ v < 2f7789b3a9628819ebf90bcba8f9da3c139f8687, 529766e0a0114438887382a68d97341fbf8349fb ≤ v < 4786d4d70dcd1e6b7e044f2348e00f201947b69c, 529766e0a0114438887382a68d97341fbf8349fb ≤ v < b7c2c5c8868737926410b93d1223ada17625ead3, 529766e0a0114438887382a68d97341fbf8349fb ≤ v < cf107c5983dc70fcf932a305581a5f976d908ff1, 529766e0a0114438887382a68d97341fbf8349fb ≤ v < 1883a09a37fed497b9efacf736c23624a472246b, 529766e0a0114438887382a68d97341fbf8349fb ≤ v < 8bf719659406e4a1b56d441e0c7da2085d891d96, 529766e0a0114438887382a68d97341fbf8349fb ≤ v < 82048795242f04275a3f49ffc66ad851b6120954, 5.2 | 9142a3dcff0d80a3a24ce159aee19ddc869d9784, 2f7789b3a9628819ebf90bcba8f9da3c139f8687, 4786d4d70dcd1e6b7e044f2348e00f201947b69c, b7c2c5c8868737926410b93d1223ada17625ead3, cf107c5983dc70fcf932a305581a5f976d908ff1, 1883a09a37fed497b9efacf736c23624a472246b, 8bf719659406e4a1b56d441e0c7da2085d891d96, 82048795242f04275a3f49ffc66ad851b6120954 |
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