CVE-2025-68734

isdn: mISDN: hfcsusb: fix memory leak in hfcsusb_probe()

State: Published
Severity: Not scored
Published: Dec 24, 2025
Updated: May 11, 2026
Reserved: Dec 24, 2025

Description

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

isdn: mISDN: hfcsusb: fix memory leak in hfcsusb_probe()

In hfcsusb_probe(), the memory allocated for ctrl_urb gets leaked when setup_instance() fails with an error code. Fix that by freeing the urb before freeing the hw structure. Also change the error paths to use the goto ladder style.

Compile tested only. Issue found using a prototype static analysis tool.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	69f52adb2d534afc41fcc658f155e01f0b322f9e to before 475032fa2bb82ffb592c321885e917e39f47357fAffected 69f52adb2d534afc41fcc658f155e01f0b322f9e to before adb7577e23a431fc53aa1b6107733c0d751015fbAffected 69f52adb2d534afc41fcc658f155e01f0b322f9e to before b70c24827e11fdc71465f9207e974526fb457bb9Affected 69f52adb2d534afc41fcc658f155e01f0b322f9e to before 3f7c72bc73c4e542fde14cce017549d8a0b61a3cAffected 69f52adb2d534afc41fcc658f155e01f0b322f9e to before 03695541b3349bc40bf5d6563d44d6147fb20260Affected 69f52adb2d534afc41fcc658f155e01f0b322f9e to before 6dce43433e0635e7b00346bc937b69ce48ea71bbAffected 69f52adb2d534afc41fcc658f155e01f0b322f9e to before ea7936304ed74ab7f965d17f942a173ce91a5ca8Affected 69f52adb2d534afc41fcc658f155e01f0b322f9e to before 3f978e3f1570155a1327ffa25f60968bc7b9398fAffected
LinuxLinux	2.6.29Affected before 2.6.29Not affected 5.4.302 through 5.4.Not affected 5.10.247 through 5.10.Not affected 5.15.197 through 5.15.Not affected 6.1.159 through 6.1.Not affected 6.6.117 through 6.6.Not affected 6.12.59 through 6.12.Not affected 6.17.9 through 6.17.*Not affected 6.18 and laterNot affected

Product

Versions

LinuxLinux

69f52adb2d534afc41fcc658f155e01f0b322f9e to before 475032fa2bb82ffb592c321885e917e39f47357fAffected
69f52adb2d534afc41fcc658f155e01f0b322f9e to before adb7577e23a431fc53aa1b6107733c0d751015fbAffected
69f52adb2d534afc41fcc658f155e01f0b322f9e to before b70c24827e11fdc71465f9207e974526fb457bb9Affected
69f52adb2d534afc41fcc658f155e01f0b322f9e to before 3f7c72bc73c4e542fde14cce017549d8a0b61a3cAffected
69f52adb2d534afc41fcc658f155e01f0b322f9e to before 03695541b3349bc40bf5d6563d44d6147fb20260Affected
69f52adb2d534afc41fcc658f155e01f0b322f9e to before 6dce43433e0635e7b00346bc937b69ce48ea71bbAffected
69f52adb2d534afc41fcc658f155e01f0b322f9e to before ea7936304ed74ab7f965d17f942a173ce91a5ca8Affected
69f52adb2d534afc41fcc658f155e01f0b322f9e to before 3f978e3f1570155a1327ffa25f60968bc7b9398fAffected

LinuxLinux

2.6.29Affected
before 2.6.29Not affected
5.4.302 through 5.4.*Not affected
5.10.247 through 5.10.*Not affected
5.15.197 through 5.15.*Not affected
6.1.159 through 6.1.*Not affected
6.6.117 through 6.6.*Not affected
6.12.59 through 6.12.*Not affected
6.17.9 through 6.17.*Not affected
6.18 and laterNot affected

References

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