CVE-2026-93200
CVE CVE-2026-93200EUVD EUVD-2026-82308Published 2026-09-17T16:12:21.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix use-after-free of master->this sysfs attribute callbacks for the master controller device dereference master->this. However, master->this is freed in i3c_master_detach_free_devs() before the master device itself is released. As a result, sysfs accesses can dereference a freed master->this pointer, leading to a use-after-free. Keep master->this alive until i3c_masterdev_release(), which is called after the master device and its sysfs state are being torn down. Do not free master->this as part of the normal device detach path. On the error path in i3c_master_set_info(), reset master->this and bus.cur_master to NULL before freeing the allocated device.
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 5.0; patch: 0; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <feb0ed76601f3c2f91f08688c5a7d8b9d382f720; patch: 6.18.52; patch: 7.2.6; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <4f3145db05fede36b35f8249b8acde5bd5d54864; 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <50034d8d0f797c3a7a599f750a7d3e792e80dea5; patch: 7.3-rc1
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
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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