CVE-2026-46103

can: ucan: fix devres lifetime

State: Published
Severity: Not scored
Published: May 27, 2026
Updated: Jun 19, 2026
Reserved: May 13, 2026

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	9f2d3eae88d26c29d96e42983b755940d9169cd9 to before a90f0815aaa9c629ac4750e7c71c357dd7f231d7Affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 to before cb2e41e87a2893345859440017e7178bf7a4c70dAffected 9f2d3eae88d26c29d96e42983b755940d9169cd9 to before 3df5b9110ac08f67ccfe382fc172bfee95688eecAffected 9f2d3eae88d26c29d96e42983b755940d9169cd9 to before 4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705Affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 to before 10b7b676b78a7bd888d19729b459aad7fc1f428bAffected 9f2d3eae88d26c29d96e42983b755940d9169cd9 to before c524c124e3094d2de12235a513854c03d06a2b58Affected 9f2d3eae88d26c29d96e42983b755940d9169cd9 to before c0d3ccc6929e4509076df8f30a4fb1dc5018b0aeAffected 9f2d3eae88d26c29d96e42983b755940d9169cd9 to before fed4626501c871890da287bec62a96e52da1af89Affected
LinuxLinux	4.19Affected before 4.19Not affected 5.10.259 through 5.10.Not affected 5.15.210 through 5.15.Not affected 6.1.175 through 6.1.Not affected 6.6.140 through 6.6.Not affected 6.12.86 through 6.12.Not affected 6.18.27 through 6.18.Not affected 7.0.4 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

9f2d3eae88d26c29d96e42983b755940d9169cd9 to before a90f0815aaa9c629ac4750e7c71c357dd7f231d7Affected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to before cb2e41e87a2893345859440017e7178bf7a4c70dAffected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to before 3df5b9110ac08f67ccfe382fc172bfee95688eecAffected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to before 4b7d07747400cfd7eff1ba7b8b5a7c8d5a58f705Affected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to before 10b7b676b78a7bd888d19729b459aad7fc1f428bAffected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to before c524c124e3094d2de12235a513854c03d06a2b58Affected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to before c0d3ccc6929e4509076df8f30a4fb1dc5018b0aeAffected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to before fed4626501c871890da287bec62a96e52da1af89Affected

LinuxLinux

4.19Affected
before 4.19Not affected
5.10.259 through 5.10.*Not affected
5.15.210 through 5.15.*Not affected
6.1.175 through 6.1.*Not affected
6.6.140 through 6.6.*Not affected
6.12.86 through 6.12.*Not affected
6.18.27 through 6.18.*Not affected
7.0.4 through 7.0.*Not affected
7.1 and laterNot affected

References

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