CVE-2026-80680 is a vulnerability in Linux Kernel
Published on August 28, 2026
i2c: amd-mp2: Unregister callback on adapter add failure
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.
Products Associated with CVE-2026-80680
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Affected Versions
Linux:- Version 529766e0a0114438887382a68d97341fbf8349fb and below 9142a3dcff0d80a3a24ce159aee19ddc869d9784 is affected.
- Version 529766e0a0114438887382a68d97341fbf8349fb and below 2f7789b3a9628819ebf90bcba8f9da3c139f8687 is affected.
- Version 529766e0a0114438887382a68d97341fbf8349fb and below 4786d4d70dcd1e6b7e044f2348e00f201947b69c is affected.
- Version 529766e0a0114438887382a68d97341fbf8349fb and below b7c2c5c8868737926410b93d1223ada17625ead3 is affected.
- Version 529766e0a0114438887382a68d97341fbf8349fb and below cf107c5983dc70fcf932a305581a5f976d908ff1 is affected.
- Version 529766e0a0114438887382a68d97341fbf8349fb and below 1883a09a37fed497b9efacf736c23624a472246b is affected.
- Version 529766e0a0114438887382a68d97341fbf8349fb and below 8bf719659406e4a1b56d441e0c7da2085d891d96 is affected.
- Version 529766e0a0114438887382a68d97341fbf8349fb and below 82048795242f04275a3f49ffc66ad851b6120954 is affected.
- Version 5.2 is affected.
- Before 5.2 is unaffected.
- Version 5.10.265, <= 5.10.* is unaffected.
- Version 5.15.216, <= 5.15.* is unaffected.
- Version 6.1.183, <= 6.1.* is unaffected.
- Version 6.6.151, <= 6.6.* is unaffected.
- Version 6.12.103, <= 6.12.* is unaffected.
- Version 6.18.44, <= 6.18.* is unaffected.
- Version 7.1.8, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.