CVEvulnerability
CVE-2025-40253
8.8 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-12-04
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2 git.kernel.org
- https://git.kernel.org/stable/c/3b177b2ded563df16f6d5920671ffcfe5915d472 git.kernel.org
- https://git.kernel.org/stable/c/43096dab8cc60fc39133205fd149a54d3acebea8 git.kernel.org
- https://git.kernel.org/stable/c/6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a git.kernel.org
- https://git.kernel.org/stable/c/7616e2eee679746d526c7f5befd4eedb995935b5 git.kernel.org
- https://git.kernel.org/stable/c/7ff76f8dc6b550f8d16487bf3cebc278be720b5c git.kernel.org
- https://git.kernel.org/stable/c/b9dbfb1b5699f9f1e4991f96741bdf9047147589 git.kernel.org
- https://git.kernel.org/stable/c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2 git.kernel.org