7.8

CVE-2026-53400

i2c: core: fix adapter registration race

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.22 < 5.10.261
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.212
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.178
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.145
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.95
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.38
Linux ≫ Linux Kernel Version >= 6.19 < 7.1.3
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.1% 0.011
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

https://git.kernel.org/stable/c/78793c75dc6d0ff2e4d50ad617349b328a99054e
Patch
https://git.kernel.org/stable/c/6a946038f2a5a8c29048c6af369d4e391448a5c5
Patch
https://git.kernel.org/stable/c/a4c8094bbf4c6fa68b17e3b16f6a0a1b7a14f3e0
Patch
https://git.kernel.org/stable/c/ba14d7cf2fe7284610a29854bdff22b2537d3ce6
Patch
https://git.kernel.org/stable/c/1febb174815bcae56d73587e99e8f87e02f0784d
Patch
https://git.kernel.org/stable/c/2e57c788e71f1763445f812eba4e0b4a2fbd0646
Patch
https://git.kernel.org/stable/c/a4365bc41baaf67f3a5aa8556d23544e6ec7480a
Patch
https://git.kernel.org/stable/c/da9d8d9711f78deebc202d0cffcf577e45ee8621
Patch