CVE-2026-53400High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Ma…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Aug 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.10%
— → 7.8
none → high
7.8 → —
high → none
— → 7.8
none → high
7.8 → —
high → none
— → 7.8
none → high
Last analysed / modified upstream
0.10% → 0.1%
In the Linux kernel, the following vulnerability has been resolved:
i2c: core: fix adapter registration race
Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device.
Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free.
Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.
linux_kernel >= 2.6.22, < 5.10.261linux_kernel >= 5.11, < 5.15.212linux_kernel >= 5.16, < 6.1.178linux_kernel >= 6.2, < 6.6.145linux_kernel >= 6.7, < 6.12.95linux_kernel >= 6.13, < 6.18.38linux_kernel >= 6.19, < 7.1.3Upgrade past the affected range:
linux_kernel 7.1.3Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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