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.
Metrics
CVSS 3.1 4.4/10
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 5c54fcac9a9de559b444ac63ec3cd82f1d157a0b, < e279bf8e51893e1fe160b3d8126ef2dd00f661e1; >= 5c54fcac9a9de559b444ac63ec3cd82f1d157a0b, < ef982fc41055fcebb361a92288d3225783d12913; >= 5c54fcac9a9de559b444ac63ec3cd82f1d157a0b, < 0158216805ca7e498d07de38840d2732166ae5fa; >= 5c54fcac9a9de559b444ac63ec3cd82f1d157a0b, < 4b45829440b1b208948b39cc71f77a37a2536734; >= 5c54fcac9a9de559b444ac63ec3cd82f1d157a0b, < 01f82de440f2ab07c259b7573371e1c42e5565db; >= 5c54fcac9a9de559b444ac63ec3cd82f1d157a0b, < 1c9be13846c0b2abc2480602f8ef421360e1ad9e; 7b169e33a3bc9040e06988b2bc15e83d2af80358; >= 4.18.12, < 4.19 |
| Linux | Linux | 4.19 |
References
- https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5faPatch
- https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565dbPatch
- https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9ePatch
- https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734Patch
- https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1Patch
- https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913Patch
- https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5faPatch
- https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565dbPatch
- https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9ePatch
- https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734Patch
- https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1Patch
- https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List
Timeline
- Published
- Apr 3, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed