i2c: core: fix NULL-deref on adapter registration failure
Published Aug 6, 2026
No CVSS score
EPSS 0.21%
Description
If adapter registration ever fails the release callback would trigger a NULL-pointer dereference as the completion struct has not been initialised.
Note that before the offending commit this would instead have resulted in a minor memory leak of the adapter name.
Affected products
-
Affected
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
-
Affected
- ≥ 6.12.11, < 6.12.96
-
Affected
- 6.13
Unaffected
- ≥ 0, < 6.13
- ≥ 6.12.96, ≤ 6.12.*
- ≥ 6.18.39, ≤ 6.18.*
- ≥ 7.1.4, ≤ 7.1.*
- 7.2
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (0)
No CWE recorded.
References (5)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-53776 Advisory
- https://git.kernel.org/stable/c/034e307428119b67f5f18a35e4f4e7d15a2b9774
- https://git.kernel.org/stable/c/2295d2bb101faa663fbc45fadbb3fec45f107441
- https://git.kernel.org/stable/c/2ce0a74bfa3acdfcdb00cf02f181f2754b451f42
- https://git.kernel.org/stable/c/3351c5e77749a0c8a1e252b95420c143ebcf07ac
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Linux
Published Aug 6, 2026
Updated Aug 17, 2026
Reserved Jul 19, 2026
Link CVE-2026-64589
CISA Vulnrichment
No data
Red Hat
No data
GitHub
No data