CVE-2025-38555

usb: gadget : fix use-after-free in composite_dev_cleanup()

State: Published
Severity: 7.8 High
Published: Aug 19, 2025
Updated: Aug 5, 2026
Reserved: Apr 16, 2025

Description

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

usb: gadget : fix use-after-free in composite_dev_cleanup()

1. In func configfs_composite_bind() -> composite_os_desc_req_prepare(): if kmalloc fails, the pointer cdev->os_desc_req will be freed but not set to NULL. Then it will return a failure to the upper-level function. 2. in func configfs_composite_bind() -> composite_dev_cleanup(): it will checks whether cdev->os_desc_req is NULL. If it is not NULL, it will attempt to use it.This will lead to a use-after-free issue.

BUG: KASAN: use-after-free in composite_dev_cleanup+0xf4/0x2c0 Read of size 8 at addr 0000004827837a00 by task init/1

CPU: 10 PID: 1 Comm: init Tainted: G O 5.10.97-oh #1 kasan_report+0x188/0x1cc __asan_load8+0xb4/0xbc composite_dev_cleanup+0xf4/0x2c0 configfs_composite_bind+0x210/0x7ac udc_bind_to_driver+0xb4/0x1ec usb_gadget_probe_driver+0xec/0x21c gadget_dev_desc_UDC_store+0x264/0x27c

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before dba96dfa5a0f685b959dd28a52ac8dab0b805204Affected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 2db29235e900a084a656dea7e0939b0abb7bb897Affected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 8afb22aa063f706f3343707cdfb8cda4d021dd33Affected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before e624bf26127645a2f7821e73fdf6dc64bad07835Affected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before aada327a9f8028c573636fa60c0abc80fb8135c9Affected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 5f06ee9f9a3665d43133f125c17e5258a13f3963Affected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before bd3c4ef60baf7f65c963f3e12d9d7b2b091e20baAffected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before e1be1f380c82a69f80c68c96a7cfe8759fb30355Affected 37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 151c0aa896c47a4459e07fee7d4843f44c1bb18eAffected
LinuxLinux	3.16Affected before 3.16Not affected 5.4.297 through 5.4.Not affected 5.10.241 through 5.10.Not affected 5.15.190 through 5.15.Not affected 6.1.148 through 6.1.Not affected 6.6.102 through 6.6.Not affected 6.12.42 through 6.12.Not affected 6.15.10 through 6.15.Not affected 6.16.1 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before dba96dfa5a0f685b959dd28a52ac8dab0b805204Affected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 2db29235e900a084a656dea7e0939b0abb7bb897Affected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 8afb22aa063f706f3343707cdfb8cda4d021dd33Affected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before e624bf26127645a2f7821e73fdf6dc64bad07835Affected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before aada327a9f8028c573636fa60c0abc80fb8135c9Affected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 5f06ee9f9a3665d43133f125c17e5258a13f3963Affected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before bd3c4ef60baf7f65c963f3e12d9d7b2b091e20baAffected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before e1be1f380c82a69f80c68c96a7cfe8759fb30355Affected
37a3a533429ef9b3cc9f15a656c19623f0e88df7 to before 151c0aa896c47a4459e07fee7d4843f44c1bb18eAffected

LinuxLinux

3.16Affected
before 3.16Not affected
5.4.297 through 5.4.*Not affected
5.10.241 through 5.10.*Not affected
5.15.190 through 5.15.*Not affected
6.1.148 through 6.1.*Not affected
6.6.102 through 6.6.*Not affected
6.12.42 through 6.12.*Not affected
6.15.10 through 6.15.*Not affected
6.16.1 through 6.16.*Not affected
6.17 and laterNot affected

References

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