{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71144", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:30:19.661Z", "datePublished": "2026-01-14T15:08:56.700Z", "dateUpdated": "2026-05-23T16:03:21.988Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T16:03:21.988Z"}, "descriptions": [{"lang": "en", "value": "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 <TASK>\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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mptcp/protocol.c", "net/mptcp/protocol.h"], "versions": [{"version": "9ea05fabce31ff93a0adae8221c58bc6d7b832f3", "lessThan": "226fff52e7ed9fc8cd63327133739b3d92537ffd", "status": "affected", "versionType": "git"}, {"version": "3a13454fd098ed51e733958488f8ec62859a9ed8", "lessThan": "5c7c7135468f3fc6379cde9777a2c18bfe92d82f", "status": "affected", "versionType": "git"}, {"version": "f6fb2cbc91a81178dea23d463503b4525a76825d", "lessThan": "1c7c3a9314d8a7fc0e9a508606466a967c8e774a", "status": "affected", "versionType": "git"}, {"version": "ae155060247be8dcae3802a95bd1bdf93ab3215d", "lessThan": "f1a77dfc3b045c3dd5f6e64189b9f52b90399f07", "status": "affected", "versionType": "git"}, {"version": "ae155060247be8dcae3802a95bd1bdf93ab3215d", "lessThan": "86730ac255b0497a272704de9a1df559f5d6602e", "status": "affected", "versionType": "git"}, {"version": "c4f7b0916b95fd2226e5ab98882482b08f52e1c0", "status": "affected", "versionType": "git"}, {"version": "6.1.159", "lessThan": "6.1.164", "status": "affected", "versionType": "semver"}, {"version": "6.6.119", "lessThan": "6.6.120", "status": "affected", "versionType": "semver"}, {"version": "6.12.60", "lessThan": "6.12.65", "status": "affected", "versionType": "semver"}, {"version": "6.17.10", "lessThan": "6.18", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mptcp/protocol.c", "net/mptcp/protocol.h"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.164", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.65", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.5", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.159", "versionEndExcluding": "6.1.164"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.119", "versionEndExcluding": "6.6.120"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.60", "versionEndExcluding": "6.12.65"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17.10"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/226fff52e7ed9fc8cd63327133739b3d92537ffd"}, {"url": "https://git.kernel.org/stable/c/5c7c7135468f3fc6379cde9777a2c18bfe92d82f"}, {"url": "https://git.kernel.org/stable/c/1c7c3a9314d8a7fc0e9a508606466a967c8e774a"}, {"url": "https://git.kernel.org/stable/c/f1a77dfc3b045c3dd5f6e64189b9f52b90399f07"}, {"url": "https://git.kernel.org/stable/c/86730ac255b0497a272704de9a1df559f5d6602e"}], "title": "mptcp: ensure context reset on disconnect()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D3726387-AF50-44DE-815B-1A6D1540BA37", "versionEndExcluding": "6.1.164", "versionStartIncluding": "6.1.159", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DA8B3A36-C658-4562-AA47-7FD1228380DA", "versionEndExcluding": "6.12.65", "versionStartIncluding": "6.12.60", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AC4D9A16-72F2-4CA3-A8F5-80DD12FD7626", "versionEndExcluding": "6.18", "versionStartIncluding": "6.17.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FC10B9C3-37AA-4674-94E9-42060AD7B02E", "versionEndExcluding": "6.18.5", "versionStartIncluding": "6.18.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.6.119:*:*:*:*:*:*:*", "matchCriteriaId": "6032EB9F-DBC1-4563-9C01-D603E01ACD9D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:-:*:*:*:*:*:*", "matchCriteriaId": "DCE57113-2223-4308-A0F2-5E6ECFBB3C23", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc7:*:*:*:*:*:*", "matchCriteriaId": "38C4D89F-9A13-4D29-8645-C9785C142C07", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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 <TASK>\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()."}], "id": "CVE-2025-71144", "lastModified": "2026-02-26T18:41:23.727", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-01-14T15:16:04.223", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c7c3a9314d8a7fc0e9a508606466a967c8e774a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/226fff52e7ed9fc8cd63327133739b3d92537ffd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5c7c7135468f3fc6379cde9777a2c18bfe92d82f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/86730ac255b0497a272704de9a1df559f5d6602e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1a77dfc3b045c3dd5f6e64189b9f52b90399f07"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mptcp: ensure context reset on disconnect()", "id": "2429580", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429580"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2025-71144", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-01-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-71144\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71144\nhttps://lore.kernel.org/linux-cve-announce/2026011459-CVE-2025-71144-8a18@gregkh/T"]}

{}