CVE-2026-80680i2c: amd-mp2: Unregister callback on adapter add failure
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 2 days later
· 2 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 529766e0a0114438887382a68d97341fbf8349fb – < 9142a3dcff0d80a3a24ce159aee19ddc869d9784
- affected 529766e0a0114438887382a68d97341fbf8349fb – < 2f7789b3a9628819ebf90bcba8f9da3c139f8687
- affected 529766e0a0114438887382a68d97341fbf8349fb – < 4786d4d70dcd1e6b7e044f2348e00f201947b69c
- affected 529766e0a0114438887382a68d97341fbf8349fb – < b7c2c5c8868737926410b93d1223ada17625ead3
- affected 529766e0a0114438887382a68d97341fbf8349fb – < cf107c5983dc70fcf932a305581a5f976d908ff1
- affected 529766e0a0114438887382a68d97341fbf8349fb – < 1883a09a37fed497b9efacf736c23624a472246b
- affected 529766e0a0114438887382a68d97341fbf8349fb – < 8bf719659406e4a1b56d441e0c7da2085d891d96
- affected 529766e0a0114438887382a68d97341fbf8349fb – < 82048795242f04275a3f49ffc66ad851b6120954
- affected 5.2
- unaffected < 5.2
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.44 – ≤ 6.18.*
- unaffected 7.1.8 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/9142a3dcff0d80a3a24ce159aee19ddc869d9784 (opens in a new tab)
- https://git.kernel.org/stable/c/2f7789b3a9628819ebf90bcba8f9da3c139f8687 (opens in a new tab)
- https://git.kernel.org/stable/c/4786d4d70dcd1e6b7e044f2348e00f201947b69c (opens in a new tab)
- https://git.kernel.org/stable/c/b7c2c5c8868737926410b93d1223ada17625ead3 (opens in a new tab)
- https://git.kernel.org/stable/c/cf107c5983dc70fcf932a305581a5f976d908ff1 (opens in a new tab)
- https://git.kernel.org/stable/c/1883a09a37fed497b9efacf736c23624a472246b (opens in a new tab)
- https://git.kernel.org/stable/c/8bf719659406e4a1b56d441e0c7da2085d891d96 (opens in a new tab)
- https://git.kernel.org/stable/c/82048795242f04275a3f49ffc66ad851b6120954 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-67556 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80680)Record last updated .