CVE-2026-46103

Summary

In the Linux kernel, the following vulnerability has been resolved:

can: ucan: fix devres lifetime

USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes).

Fix the control message buffer lifetime so that it is released on driver unbind.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < a90f0815aaa9c629ac4750e7c71c357dd7f231d7affected
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < cb2e41e87a2893345859440017e7178bf7a4c70daffected
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < 3df5b9110ac08f67ccfe382fc172bfee95688eecaffected
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < 4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705affected
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < 10b7b676b78a7bd888d19729b459aad7fc1f428baffected
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < c524c124e3094d2de12235a513854c03d06a2b58affected
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < c0d3ccc6929e4509076df8f30a4fb1dc5018b0aeaffected
LinuxLinux9f2d3eae88d26c29d96e42983b755940d9169cd9 < fed4626501c871890da287bec62a96e52da1af89affected
LinuxLinux4.19affected
LinuxLinux0 < 4.19unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.86 <= 6.12.*unaffected
LinuxLinux6.18.27 <= 6.18.*unaffected
LinuxLinux7.0.4 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References