CVE-2025-40253— s390/ctcm: Fix double-kfree
Affected Version Matrix 29
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 467ddbbe7e749d558f13e640f50f546149c930b3< 06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2 | affected |
4d3c6d741816539b57fa1110c3f765a8c176d7b4< 6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a | affected | ||
2bd57101c3ecf3f8c0da1d26c2b6ad511adc6d50< 7616e2eee679746d526c7f5befd4eedb995935b5 | affected | ||
0c0b20587b9f25a2ad14db7f80ebe49bdf29920a< 43096dab8cc60fc39133205fd149a54d3acebea8 | affected | ||
0c0b20587b9f25a2ad14db7f80ebe49bdf29920a< 3b177b2ded563df16f6d5920671ffcfe5915d472 | affected | ||
0c0b20587b9f25a2ad14db7f80ebe49bdf29920a< b9dbfb1b5699f9f1e4991f96741bdf9047147589 | affected | ||
0c0b20587b9f25a2ad14db7f80ebe49bdf29920a< 7ff76f8dc6b550f8d16487bf3cebc278be720b5c | affected | ||
0c0b20587b9f25a2ad14db7f80ebe49bdf29920a< da02a1824884d6c84c5e5b5ac373b0c9e3288ec2 | affected | ||
| … +21 more rows | |||
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I. Basic Information for CVE-2025-40253
Vulnerability Information
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Vulnerability Title
s390/ctcm: Fix double-kfree
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于双重释放mpcginfo对象，可能导致内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-40253
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · Linux · 2025-12-04 · 53 CVEs total
| CVE-2025-40229 | mm/damon/core: fix potential memory leak by cleaning ops_filter in damon_destroy_scheme | |
| CVE-2025-40214 | af_unix: Initialise scc_index in unix_add_edge(). | |
| CVE-2025-40215 | xfrm: delete x->tunnel as we delete x | |
| CVE-2025-40220 | fuse: fix livelock in synchronous file put from fuseblk workers | |
| CVE-2025-40217 | pidfs: validate extensible ioctls | |
| CVE-2025-40218 | mm/damon/vaddr: do not repeat pte_offset_map_lock() until success | |
| CVE-2025-40219 | PCI/IOV: Fix race between SR-IOV enable/disable and hotplug | |
| CVE-2025-40216 | io_uring/rsrc: don't rely on user vaddr alignment | |
| CVE-2025-40227 | mm/damon/sysfs: dealloc commit test ctx always | |
| CVE-2025-40228 | mm/damon/sysfs: catch commit test ctx alloc failure | |
| CVE-2025-40226 | firmware: arm_scmi: Account for failed debug initialization | |
| CVE-2025-40230 | mm: prevent poison consumption when splitting THP | |
| CVE-2025-40231 | vsock: fix lock inversion in vsock_assign_transport() | |
| CVE-2025-40232 | rv: Fully convert enabled_monitors to use list_head as iterator | |
| CVE-2025-40233 | ocfs2: clear extent cache after moving/defragmenting extents | |
| CVE-2025-40234 | platform/x86: alienware-wmi-wmax: Fix NULL pointer dereference in sleep handlers | |
| CVE-2025-40236 | virtio-net: zero unused hash fields | |
| CVE-2025-40235 | btrfs: directly free partially initialized fs_info in btrfs_check_leaked_roots() | |
| CVE-2025-40237 | fs/notify: call exportfs_encode_fid with s_umount | |
| CVE-2025-40238 | net/mlx5: Fix IPsec cleanup over MPV device |
Showing top 20 of 53 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
Same vendor: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
V. Comments for CVE-2025-40253
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