CVE-2026-80680
i2c: amd-mp2: Unregister callback on adapter add failure
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.2
References 8
git.kernel.org
- stable/c/9142a3dcff0d80a3a24ce159aee19ddc869d9784
- stable/c/2f7789b3a9628819ebf90bcba8f9da3c139f8687
- stable/c/4786d4d70dcd1e6b7e044f2348e00f201947b69c
- stable/c/b7c2c5c8868737926410b93d1223ada17625ead3
- stable/c/cf107c5983dc70fcf932a305581a5f976d908ff1
- stable/c/1883a09a37fed497b9efacf736c23624a472246b
- stable/c/8bf719659406e4a1b56d441e0c7da2085d891d96
- stable/c/82048795242f04275a3f49ffc66ad851b6120954