Medium 5.5Published May 6, 2026

CVE-2025-71272most: core: fix resource leak in most_register_interface error paths

Updated under an hour ago (Oct 26, 2026, 2:30 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: most: core: fix resource leak in most_register_interface error paths The function most_register_interface() did not correctly release resources if it failed early (before registering the device). In these cases, it returned an error code immediately, leaking the memory allocated for the interface. Fix this by initializing the device early via device_initialize() and calling put_device() on all error paths. The most_register_interface() is expected to call put_device() on error which frees the resources allocated in the caller. The put_device() either calls release_mdev() or dim2_release(), depending on the caller. Switch to using device_add() instead of device_register() to handle the split initialization.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	723de0f9171eeb49a3ae98cae82ebbbb992b3a7c builds before 82f42a13e3d7a07a950ee4fa2d4c74843a3e7ace; from 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c before a49028a796d7b94f8e3ab9bd34b18f36be235459; from 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c before af0b99b2214a10554adb5b868240d23af6e64e71; 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c builds before 2f483f3817fb0e4209ac5de928778b1da0cc8574; 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c builds before 1f4c9d8a1021281750c6cda126d6f8a40cc24e71	CNA record
linux linux_kernel linux:linux_kernel	from 5.6 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6	NVD

References

References

https://git.kernel.org/stable/c/82f42a13e3d7a07a950ee4fa2d4c74843a3e7ace
https://git.kernel.org/stable/c/a49028a796d7b94f8e3ab9bd34b18f36be235459	patch
https://git.kernel.org/stable/c/af0b99b2214a10554adb5b868240d23af6e64e71	patch
https://git.kernel.org/stable/c/2f483f3817fb0e4209ac5de928778b1da0cc8574	patch
https://git.kernel.org/stable/c/1f4c9d8a1021281750c6cda126d6f8a40cc24e71	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.