CVE-2025-40253
s390/ctcm: Fix double-kfree
Vexday Risk Score
3Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
04 dez 2025Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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.
Produtos afetados
Linux · LinuxReferências
https://git.kernel.org/stable/c/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2https://git.kernel.org/stable/c/3b177b2ded563df16f6d5920671ffcfe5915d472https://git.kernel.org/stable/c/43096dab8cc60fc39133205fd149a54d3acebea8https://git.kernel.org/stable/c/6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17ahttps://git.kernel.org/stable/c/7616e2eee679746d526c7f5befd4eedb995935b5https://git.kernel.org/stable/c/7ff76f8dc6b550f8d16487bf3cebc278be720b5chttps://git.kernel.org/stable/c/b9dbfb1b5699f9f1e4991f96741bdf9047147589https://git.kernel.org/stable/c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2