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PUBLISHED

CVE-2024-26747

usb: roles: fix NULL pointer issue when put module's reference

Reserved:2024-02-19
Published:2024-04-03
Updated:2024-04-03

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.

Product status

Default status
unaffected

5c54fcac9a9d before e279bf8e5189
affected

5c54fcac9a9d before ef982fc41055
affected

5c54fcac9a9d before 0158216805ca
affected

5c54fcac9a9d before 4b45829440b1
affected

5c54fcac9a9d before 01f82de440f2
affected

5c54fcac9a9d before 1c9be13846c0
affected

Default status
affected

4.19
affected

Any version before 4.19
unaffected

5.10.211
unaffected

5.15.150
unaffected

6.1.80
unaffected

6.6.19
unaffected

6.7.7
unaffected

6.8
unaffected

References

https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1

https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913

https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa

https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734

https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db

https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e

cve.org CVE-2024-26747

nvd.nist.gov CVE-2024-26747

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