{"id":"CVE-2022-49204","summary":"bpf, sockmap: Fix more uncharged while msg has more_data","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix more uncharged while msg has more_data\n\nIn tcp_bpf_send_verdict(), if msg has more data after\ntcp_bpf_sendmsg_redir():\n\ntcp_bpf_send_verdict()\n tosend = msg-\u003esg.size  //msg-\u003esg.size = 22220\n case __SK_REDIRECT:\n  sk_msg_return()  //uncharged msg-\u003esg.size(22220) sk-\u003esk_forward_alloc\n  tcp_bpf_sendmsg_redir() //after tcp_bpf_sendmsg_redir, msg-\u003esg.size=11000\n goto more_data;\n tosend = msg-\u003esg.size  //msg-\u003esg.size = 11000\n case __SK_REDIRECT:\n  sk_msg_return()  //uncharged msg-\u003esg.size(11000) to sk-\u003esk_forward_alloc\n\nThe msg-\u003esg.size(11000) has been uncharged twice, to fix we can charge the\nremaining msg-\u003esg.size before goto more data.\n\nThis issue can cause the following info:\nWARNING: CPU: 0 PID: 9860 at net/core/stream.c:208 sk_stream_kill_queues+0xd4/0x1a0\nCall Trace:\n \u003cTASK\u003e\n inet_csk_destroy_sock+0x55/0x110\n __tcp_close+0x279/0x470\n tcp_close+0x1f/0x60\n inet_release+0x3f/0x80\n __sock_release+0x3d/0xb0\n sock_close+0x11/0x20\n __fput+0x92/0x250\n task_work_run+0x6a/0xa0\n do_exit+0x33b/0xb60\n do_group_exit+0x2f/0xa0\n get_signal+0xb6/0x950\n arch_do_signal_or_restart+0xac/0x2a0\n ? vfs_write+0x237/0x290\n exit_to_user_mode_prepare+0xa9/0x200\n syscall_exit_to_user_mode+0x12/0x30\n do_syscall_64+0x46/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n \u003c/TASK\u003e\n\nWARNING: CPU: 0 PID: 2136 at net/ipv4/af_inet.c:155 inet_sock_destruct+0x13c/0x260\nCall Trace:\n \u003cTASK\u003e\n __sk_destruct+0x24/0x1f0\n sk_psock_destroy+0x19b/0x1c0\n process_one_work+0x1b3/0x3c0\n worker_thread+0x30/0x350\n ? process_one_work+0x3c0/0x3c0\n kthread+0xe6/0x110\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x22/0x30\n \u003c/TASK\u003e","modified":"2026-03-20T12:22:15.809087Z","published":"2025-02-26T01:55:44.678Z","related":["SUSE-SU-2025:1176-1","SUSE-SU-2025:1241-1","SUSE-SU-2025:1293-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49204.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/168ff181f5b6e7fce684c98a30d35da1dbf8f82a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/244ce90c8d0bd10ebf957da02c6f3fcd5d920bdf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7b812a369e6416ab06d83cdd39d8e3f752781dd0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/84472b436e760ba439e1969a9e3c5ae7c86de39d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/87d532d41ef937e16f61b3d2094f3a2ac49be365"},{"type":"WEB","url":"https://git.kernel.org/stable/c/abb4caa477a5450817d2aa1198edce66450aecf8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49204.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49204"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"604326b41a6fb9b4a78b6179335decee0365cd8c"},{"fixed":"244ce90c8d0bd10ebf957da02c6f3fcd5d920bdf"},{"fixed":"7b812a369e6416ab06d83cdd39d8e3f752781dd0"},{"fixed":"168ff181f5b6e7fce684c98a30d35da1dbf8f82a"},{"fixed":"87d532d41ef937e16f61b3d2094f3a2ac49be365"},{"fixed":"abb4caa477a5450817d2aa1198edce66450aecf8"},{"fixed":"84472b436e760ba439e1969a9e3c5ae7c86de39d"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49204.json"}}],"schema_version":"1.7.5"}