CVE-2025-40253

medium

Description

In the Linux kernel, the following vulnerability has been resolved: s390/ctcm: Fix double-kfree The function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally from function 'ctcmpc_unpack_skb'. It frees passed mpcginfo. After that a call to function 'kfree' in function 'ctcmpc_unpack_skb' frees it again. Remove 'kfree' call in function 'mpc_rcvd_sweep_req(mpcginfo)'. Bug detected by the clang static analyzer.

References

https://git.kernel.org/stable/c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2

https://git.kernel.org/stable/c/b9dbfb1b5699f9f1e4991f96741bdf9047147589

https://git.kernel.org/stable/c/7ff76f8dc6b550f8d16487bf3cebc278be720b5c

https://git.kernel.org/stable/c/3b177b2ded563df16f6d5920671ffcfe5915d472

https://git.kernel.org/stable/c/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2

Details

Source: Mitre, NVD

Published: 2025-12-04

Updated: 2025-12-04

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00018