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CVE-2025-71144— mptcp: ensure context reset on disconnect()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于断开连接时未重置上下文，可能导致子流数据就绪警告。

AI Predicted 5.5 Difficulty: Easy EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service

Affected Version Matrix 17

VendorProduct Version RangeStatus
Linux Linux 9ea05fabce31ff93a0adae8221c58bc6d7b832f3< 226fff52e7ed9fc8cd63327133739b3d92537ffd affected
3a13454fd098ed51e733958488f8ec62859a9ed8< 5c7c7135468f3fc6379cde9777a2c18bfe92d82f affected
f6fb2cbc91a81178dea23d463503b4525a76825d< 1c7c3a9314d8a7fc0e9a508606466a967c8e774a affected
ae155060247be8dcae3802a95bd1bdf93ab3215d< f1a77dfc3b045c3dd5f6e64189b9f52b90399f07 affected
ae155060247be8dcae3802a95bd1bdf93ab3215d< 86730ac255b0497a272704de9a1df559f5d6602e affected
c4f7b0916b95fd2226e5ab98882482b08f52e1c0 affected
6.1.159< 6.1.164 affected
6.6.119< 6.6.120 affected
… +9 more rows
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I. Basic Information for CVE-2025-71144

Vulnerability Information
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Vulnerability Title
mptcp: ensure context reset on disconnect()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect() After the blamed commit below, if the MPC subflow is already in TCP_CLOSE status or has fallback to TCP at mptcp_disconnect() time, mptcp_do_fastclose() skips setting the `send_fastclose flag` and the later __mptcp_close_ssk() does not reset anymore the related subflow context. Any later connection will be created with both the `request_mptcp` flag and the msk-level fallback status off (it is unconditionally cleared at MPTCP disconnect time), leading to a warning in subflow_data_ready(): WARNING: CPU: 26 PID: 8996 at net/mptcp/subflow.c:1519 subflow_data_ready (net/mptcp/subflow.c:1519 (discriminator 13)) Modules linked in: CPU: 26 UID: 0 PID: 8996 Comm: syz.22.39 Not tainted 6.18.0-rc7-05427-g11fc074f6c36 #1 PREEMPT(voluntary) Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 RIP: 0010:subflow_data_ready (net/mptcp/subflow.c:1519 (discriminator 13)) Code: 90 0f 0b 90 90 e9 04 fe ff ff e8 b7 1e f5 fe 89 ee bf 07 00 00 00 e8 db 19 f5 fe 83 fd 07 0f 84 35 ff ff ff e8 9d 1e f5 fe 90 <0f> 0b 90 e9 27 ff ff ff e8 8f 1e f5 fe 4c 89 e7 48 89 de e8 14 09 RSP: 0018:ffffc9002646fb30 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88813b218000 RCX: ffffffff825c8435 RDX: ffff8881300b3580 RSI: ffffffff825c8443 RDI: 0000000000000005 RBP: 000000000000000b R08: ffffffff825c8435 R09: 000000000000000b R10: 0000000000000005 R11: 0000000000000007 R12: ffff888131ac0000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f88330af6c0(0000) GS:ffff888a93dd2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f88330aefe8 CR3: 000000010ff59000 CR4: 0000000000350ef0 Call Trace: <TASK> tcp_data_ready (net/ipv4/tcp_input.c:5356) tcp_data_queue (net/ipv4/tcp_input.c:5445) tcp_rcv_state_process (net/ipv4/tcp_input.c:7165) tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1955) __release_sock (include/net/sock.h:1158 (discriminator 6) net/core/sock.c:3180 (discriminator 6)) release_sock (net/core/sock.c:3737) mptcp_sendmsg (net/mptcp/protocol.c:1763 net/mptcp/protocol.c:1857) inet_sendmsg (net/ipv4/af_inet.c:853 (discriminator 7)) __sys_sendto (net/socket.c:727 (discriminator 15) net/socket.c:742 (discriminator 15) net/socket.c:2244 (discriminator 15)) __x64_sys_sendto (net/socket.c:2247) do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) RIP: 0033:0x7f883326702d Address the issue setting an explicit `fastclosing` flag at fastclose time, and checking such flag after mptcp_do_fastclose().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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，该漏洞源于断开连接时未重置上下文，可能导致子流数据就绪警告。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 9ea05fabce31ff93a0adae8221c58bc6d7b832f3 ~ 226fff52e7ed9fc8cd63327133739b3d92537ffd -
Linux Linux 6.18 -

II. Public POCs for CVE-2025-71144

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III. Intelligence Information for CVE-2025-71144

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Same Patch Batch · Linux · 2026-01-14 · 43 CVEs total

CVE-2025-71116 9.1 CRITICAL libceph: make decode_pool() more resilient against corrupted osdmaps
CVE-2025-71112 8.8 HIGH net: hns3: add VLAN id validation before using
CVE-2025-71130 7.8 HIGH drm/i915/gem: Zero-initialize the eb.vma array in i915_gem_do_execbuffer
CVE-2025-71126 7.5 HIGH mptcp: avoid deadlock on fallback while reinjecting
CVE-2025-71128 7.5 HIGH erspan: Initialize options_len before referencing options.
CVE-2025-71131 7.5 HIGH crypto: seqiv - Do not use req->iv after crypto_aead_encrypt
CVE-2025-71132 7.5 HIGH smc91x: fix broken irq-context in PREEMPT_RT
CVE-2025-71120 7.5 HIGH SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf
CVE-2025-71109 7.1 HIGH MIPS: ftrace: Fix memory corruption when kernel is located beyond 32 bits
CVE-2025-71136 7.1 HIGH media: adv7842: Avoid possible out-of-bounds array accesses in adv7842_cp_log_status()
CVE-2025-71127 7.1 HIGH wifi: mac80211: Discard Beacon frames to non-broadcast address
CVE-2025-71107 f2fs: ensure node page reads complete before f2fs_put_super() finishes
CVE-2025-71110 mm/slub: reset KASAN tag in defer_free() before accessing freed memory
CVE-2025-71103 drm/msm: adreno: fix deferencing ifpc_reglist when not declared
CVE-2025-71113 crypto: af_alg - zero initialize memory allocated via sock_kmalloc
CVE-2025-71114 via_wdt: fix critical boot hang due to unnamed resource allocation
CVE-2025-71115 um: init cpu_tasks[] earlier
CVE-2025-71102 scs: fix a wrong parameter in __scs_magic
CVE-2025-71117 block: Remove queue freezing from several sysfs store callbacks
CVE-2025-71122 iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED

Showing top 20 of 43 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-71144

Anonymous User
2026-01-15 06:08:11

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