{"id":"CVE-2022-49877","summary":"bpf, sockmap: Fix the sk-\u003esk_forward_alloc warning of sk_stream_kill_queues","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix the sk-\u003esk_forward_alloc warning of sk_stream_kill_queues\n\nWhen running `test_sockmap` selftests, the following warning appears:\n\n  WARNING: CPU: 2 PID: 197 at net/core/stream.c:205 sk_stream_kill_queues+0xd3/0xf0\n  Call Trace:\n  \u003cTASK\u003e\n  inet_csk_destroy_sock+0x55/0x110\n  tcp_rcv_state_process+0xd28/0x1380\n  ? tcp_v4_do_rcv+0x77/0x2c0\n  tcp_v4_do_rcv+0x77/0x2c0\n  __release_sock+0x106/0x130\n  __tcp_close+0x1a7/0x4e0\n  tcp_close+0x20/0x70\n  inet_release+0x3c/0x80\n  __sock_release+0x3a/0xb0\n  sock_close+0x14/0x20\n  __fput+0xa3/0x260\n  task_work_run+0x59/0xb0\n  exit_to_user_mode_prepare+0x1b3/0x1c0\n  syscall_exit_to_user_mode+0x19/0x50\n  do_syscall_64+0x48/0x90\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nThe root case is in commit 84472b436e76 (\"bpf, sockmap: Fix more uncharged\nwhile msg has more_data\"), where I used msg-\u003esg.size to replace the tosend,\ncausing breakage:\n\n  if (msg-\u003eapply_bytes && msg-\u003eapply_bytes \u003c tosend)\n    tosend = psock-\u003eapply_bytes;","modified":"2026-04-11T12:44:37.629231Z","published":"2025-05-01T14:10:25.682Z","related":["SUSE-SU-2025:01983-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49877.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/14e8bc3bf7bd6af64d7538a0684c8238d96cdfd7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ec95b94716a1e4d126edc3fb2bc426a717e2dba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/95adbd2ac8de82e43fd6b347e7e1b47f74dc1abb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc21dc48a78cc9e5af9a4d039cd456446a6e73ff"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d975bec1eaeb52341acc9273db79ddb078220399"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49877.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49877"},{"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":"244ce90c8d0bd10ebf957da02c6f3fcd5d920bdf"},{"fixed":"d975bec1eaeb52341acc9273db79ddb078220399"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7b812a369e6416ab06d83cdd39d8e3f752781dd0"},{"fixed":"cc21dc48a78cc9e5af9a4d039cd456446a6e73ff"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"168ff181f5b6e7fce684c98a30d35da1dbf8f82a"},{"fixed":"95adbd2ac8de82e43fd6b347e7e1b47f74dc1abb"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"84472b436e760ba439e1969a9e3c5ae7c86de39d"},{"fixed":"14e8bc3bf7bd6af64d7538a0684c8238d96cdfd7"},{"fixed":"8ec95b94716a1e4d126edc3fb2bc426a717e2dba"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"87d532d41ef937e16f61b3d2094f3a2ac49be365"},{"last_affected":"abb4caa477a5450817d2aa1198edce66450aecf8"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49877.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.225"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.155"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.79"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.0.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49877.json"}}],"schema_version":"1.7.5"}