CVE-2024-26747
Published: April 4, 2024Last modified: April 4, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: usb: roles: fix NULL pointer issue when put module's reference In current design, usb role class driver will get usb_role_switch parent's module reference after the user get usb_role_switch device and put the reference after the user put the usb_role_switch device. However, the parent device of usb_role_switch may be removed before the user put the usb_role_switch. If so, then, NULL pointer issue will be met when the user put the parent module's reference. This will save the module pointer in structure of usb_role_switch. Then, we don't need to find module by iterating long relations.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.4 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | HIGH |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.81-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.12.41-r0) |
References
- https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa
- https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db
- https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e
- https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734
- https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1
- https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html