CVE-2026-53400

CVE CVE-2026-53400EUVD EUVD-2026-45455Published 2026-07-19T12:02:00.000ZLast changed 2026-08-05T12:35:39.000ZCVSS 7.8

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.18.38; 6e13e641841833cc2aa5baefe89bb04bc388801b <ba14d7cf2fe7284610a29854bdff22b2537d3ce6; 6e13e641841833cc2aa5baefe89bb04bc388801b <da9d8d9711f78deebc202d0cffcf577e45ee8621; patch: 5.15.212; patch: 6.1.178; patch: 7.2-rc1; 6e13e641841833cc2aa5baefe89bb04bc388801b <6a946038f2a5a8c29048c6af369d4e391448a5c5; patch: 5.10.261; patch: 0; patch: 7.1.3; 6e13e641841833cc2aa5baefe89bb04bc388801b <1febb174815bcae56d73587e99e8f87e02f0784d; patch: 6.6.145; patch: 6.12.95; 6e13e641841833cc2aa5baefe89bb04bc388801b <78793c75dc6d0ff2e4d50ad617349b328a99054e; 6e13e641841833cc2aa5baefe89bb04bc388801b <2e57c788e71f1763445f812eba4e0b4a2fbd0646; 6e13e641841833cc2aa5baefe89bb04bc388801b <a4365bc41baaf67f3a5aa8556d23544e6ec7480a; 6e13e641841833cc2aa5baefe89bb04bc388801b <a4c8094bbf4c6fa68b17e3b16f6a0a1b7a14f3e0; 2.6.22

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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