{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-71144", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-71144", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2026-01-14T15:08:56.700Z", "updatedAt": "2026-05-23T16:03:21.988Z", "importedAt": "2026-10-24T01:57:44.935Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "mptcp: ensure context reset on disconnect()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: ensure context reset on disconnect()\n\nAfter the blamed commit below, if the MPC subflow is already in TCP_CLOSE\nstatus or has fallback to TCP at mptcp_disconnect() time,\nmptcp_do_fastclose() skips setting the `send_fastclose flag` and the later\n__mptcp_close_ssk() does not reset anymore the related subflow context.\n\nAny later connection will be created with both the `request_mptcp` flag\nand the msk-level fallback status off (it is unconditionally cleared at\nMPTCP disconnect time), leading to a warning in subflow_data_ready():\n\n WARNING: CPU: 26 PID: 8996 at net/mptcp/subflow.c:1519 subflow_data_ready (net/mptcp/subflow.c:1519 (discriminator 13))\n Modules linked in:\n CPU: 26 UID: 0 PID: 8996 Comm: syz.22.39 Not tainted 6.18.0-rc7-05427-g11fc074f6c36 #1 PREEMPT(voluntary)\n Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n RIP: 0010:subflow_data_ready (net/mptcp/subflow.c:1519 (discriminator 13))\n 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\n RSP: 0018:ffffc9002646fb30 EFLAGS: 00010293\n RAX: 0000000000000000 RBX: ffff88813b218000 RCX: ffffffff825c8435\n RDX: ffff8881300b3580 RSI: ffffffff825c8443 RDI: 0000000000000005\n RBP: 000000000000000b R08: ffffffff825c8435 R09: 000000000000000b\n R10: 0000000000000005 R11: 0000000000000007 R12: ffff888131ac0000\n R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\n FS: 00007f88330af6c0(0000) GS:ffff888a93dd2000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f88330aefe8 CR3: 000000010ff59000 CR4: 0000000000350ef0\n Call Trace:\n \n tcp_data_ready (net/ipv4/tcp_input.c:5356)\n tcp_data_queue (net/ipv4/tcp_input.c:5445)\n tcp_rcv_state_process (net/ipv4/tcp_input.c:7165)\n tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1955)\n __release_sock (include/net/sock.h:1158 (discriminator 6) net/core/sock.c:3180 (discriminator 6))\n release_sock (net/core/sock.c:3737)\n mptcp_sendmsg (net/mptcp/protocol.c:1763 net/mptcp/protocol.c:1857)\n inet_sendmsg (net/ipv4/af_inet.c:853 (discriminator 7))\n __sys_sendto (net/socket.c:727 (discriminator 15) net/socket.c:742 (discriminator 15) net/socket.c:2244 (discriminator 15))\n __x64_sys_sendto (net/socket.c:2247)\n do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\n RIP: 0033:0x7f883326702d\n\nAddress the issue setting an explicit `fastclosing` flag at fastclose\ntime, and checking such flag after mptcp_do_fastclose().", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "9ea05fabce31ff93a0adae8221c58bc6d7b832f3", "status": "affected", "versionType": "git", "lessThan": "226fff52e7ed9fc8cd63327133739b3d92537ffd" }, { "version": "3a13454fd098ed51e733958488f8ec62859a9ed8", "status": "affected", "versionType": "git", "lessThan": "5c7c7135468f3fc6379cde9777a2c18bfe92d82f" }, { "version": "f6fb2cbc91a81178dea23d463503b4525a76825d", "status": "affected", "versionType": "git", "lessThan": "1c7c3a9314d8a7fc0e9a508606466a967c8e774a" }, { "version": "ae155060247be8dcae3802a95bd1bdf93ab3215d", "status": "affected", "versionType": "git", "lessThan": "f1a77dfc3b045c3dd5f6e64189b9f52b90399f07" }, { "version": "ae155060247be8dcae3802a95bd1bdf93ab3215d", "status": "affected", "versionType": "git", "lessThan": "86730ac255b0497a272704de9a1df559f5d6602e" }, { "version": "c4f7b0916b95fd2226e5ab98882482b08f52e1c0", "status": "affected", "versionType": "git" }, { "version": "6.1.159", "status": "affected", "versionType": "semver", "lessThan": "6.1.164" }, { "version": "6.6.119", "status": "affected", "versionType": "semver", "lessThan": "6.6.120" }, { "version": "6.12.60", "status": "affected", "versionType": "semver", "lessThan": "6.12.65" }, { "version": "6.17.10", "status": "affected", "versionType": "semver", "lessThan": "6.18" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.18", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.18" }, { "version": "6.1.164", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.120", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.65", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.5", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "6.19", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }