EUVD-2025-201204Lifecycle Timeline
4Description
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.
Analysis
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.
Remediation
Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.
Priority Score
Vendor Status
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 5.10.223-1 | - |
| bullseye (security) | vulnerable | 5.10.251-1 | - |
| bookworm | fixed | 6.1.159-1 | - |
| bookworm (security) | fixed | 6.1.164-1 | - |
| trixie | fixed | 6.12.63-1 | - |
| trixie (security) | fixed | 6.12.74-2 | - |
| forky | fixed | 6.19.6-2 | - |
| sid | fixed | 6.19.8-1 | - |
| (unstable) | fixed | 6.17.10-1 | - |
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye (security) | fixed | 6.1.164-1~deb11u1 | - |
| bullseye | fixed | 6.1.159-1~deb11u1 | - |
Share
External POC / Exploit Code
Leaving vuln.today