[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2022-50070":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":18,"aliases":19,"duplicate_of":9,"upstream":20,"downstream":21,"duplicates":56,"related":57,"reserved_at":9,"published_at":58,"modified_at":59,"state":60,"summary":61,"references_raw":70,"kevs":85,"epss":86,"epss_history":89,"metrics":358,"affected":364},"CVE-2022-50070","In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: do not queue data on closed subflows\n\nDipanjan reported a syzbot splat at close time:\n\nWARNING: CPU: 1 PID: 10818 at net/ipv4/af_inet.c:153\ninet_sock_destruct+0x6d0/0x8e0 net/ipv4/af_inet.c:153\nModules linked in: uio_ivshmem(OE) uio(E)\nCPU: 1 PID: 10818 Comm: kworker/1:16 Tainted: G           OE\n5.19.0-rc6-g2eae0556bb9d #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.13.0-1ubuntu1.1 04/01/2014\nWorkqueue: events mptcp_worker\nRIP: 0010:inet_sock_destruct+0x6d0/0x8e0 net/ipv4/af_inet.c:153\nCode: 21 02 00 00 41 8b 9c 24 28 02 00 00 e9 07 ff ff ff e8 34 4d 91\nf9 89 ee 4c 89 e7 e8 4a 47 60 ff e9 a6 fc ff ff e8 20 4d 91 f9 \u003C0f> 0b\ne9 84 fe ff ff e8 14 4d 91 f9 0f 0b e9 d4 fd ff ff e8 08 4d\nRSP: 0018:ffffc9001b35fa78 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 00000000002879d0 RCX: ffff8881326f3b00\nRDX: 0000000000000000 RSI: ffff8881326f3b00 RDI: 0000000000000002\nRBP: ffff888179662674 R08: ffffffff87e983a0 R09: 0000000000000000\nR10: 0000000000000005 R11: 00000000000004ea R12: ffff888179662400\nR13: ffff888179662428 R14: 0000000000000001 R15: ffff88817e38e258\nFS:  0000000000000000(0000) GS:ffff8881f5f00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020007bc0 CR3: 0000000179592000 CR4: 0000000000150ee0\nCall Trace:\n \u003CTASK>\n __sk_destruct+0x4f/0x8e0 net/core/sock.c:2067\n sk_destruct+0xbd/0xe0 net/core/sock.c:2112\n __sk_free+0xef/0x3d0 net/core/sock.c:2123\n sk_free+0x78/0xa0 net/core/sock.c:2134\n sock_put include/net/sock.h:1927 [inline]\n __mptcp_close_ssk+0x50f/0x780 net/mptcp/protocol.c:2351\n __mptcp_destroy_sock+0x332/0x760 net/mptcp/protocol.c:2828\n mptcp_worker+0x5d2/0xc90 net/mptcp/protocol.c:2586\n process_one_work+0x9cc/0x1650 kernel/workqueue.c:2289\n worker_thread+0x623/0x1070 kernel/workqueue.c:2436\n kthread+0x2e9/0x3a0 kernel/kthread.c:376\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302\n \u003C/TASK>\n\nThe root cause of the problem is that an mptcp-level (re)transmit can\nrace with mptcp_close() and the packet scheduler checks the subflow\nstate before acquiring the socket lock: we can try to (re)transmit on\nan already closed ssk.\n\nFix the issue checking again the subflow socket status under the\nsubflow socket lock protection. 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