CVE-2022-49207 (GCVE-0-2022-49207)
Vulnerability from cvelistv5
Published
2025-02-26 01:55
Modified
2025-10-01 19:47
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix memleak in sk_psock_queue_msg If tcp_bpf_sendmsg is running during a tear down operation we may enqueue data on the ingress msg queue while tear down is trying to free it. sk1 (redirect sk2) sk2 ------------------- --------------- tcp_bpf_sendmsg() tcp_bpf_send_verdict() tcp_bpf_sendmsg_redir() bpf_tcp_ingress() sock_map_close() lock_sock() lock_sock() ... blocking sk_psock_stop sk_psock_clear_state(psock, SK_PSOCK_TX_ENABLED); release_sock(sk); lock_sock() sk_mem_charge() get_page() sk_psock_queue_msg() sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED); drop_sk_msg() release_sock() While drop_sk_msg(), the msg has charged memory form sk by sk_mem_charge and has sg pages need to put. To fix we use sk_msg_free() and then kfee() msg. This issue can cause the following info: WARNING: CPU: 0 PID: 9202 at net/core/stream.c:205 sk_stream_kill_queues+0xc8/0xe0 Call Trace: <IRQ> inet_csk_destroy_sock+0x55/0x110 tcp_rcv_state_process+0xe5f/0xe90 ? sk_filter_trim_cap+0x10d/0x230 ? tcp_v4_do_rcv+0x161/0x250 tcp_v4_do_rcv+0x161/0x250 tcp_v4_rcv+0xc3a/0xce0 ip_protocol_deliver_rcu+0x3d/0x230 ip_local_deliver_finish+0x54/0x60 ip_local_deliver+0xfd/0x110 ? ip_protocol_deliver_rcu+0x230/0x230 ip_rcv+0xd6/0x100 ? ip_local_deliver+0x110/0x110 __netif_receive_skb_one_core+0x85/0xa0 process_backlog+0xa4/0x160 __napi_poll+0x29/0x1b0 net_rx_action+0x287/0x300 __do_softirq+0xff/0x2fc do_softirq+0x79/0x90 </IRQ> WARNING: CPU: 0 PID: 531 at net/ipv4/af_inet.c:154 inet_sock_destruct+0x175/0x1b0 Call Trace: <TASK> __sk_destruct+0x24/0x1f0 sk_psock_destroy+0x19b/0x1c0 process_one_work+0x1b3/0x3c0 ? process_one_work+0x3c0/0x3c0 worker_thread+0x30/0x350 ? process_one_work+0x3c0/0x3c0 kthread+0xe6/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 </TASK>
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03948ed6553960db62f1c33bec29e64d7c191a3fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4dd2e947d3be13a4de3b3028859b9a6497266bcfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/938d3480b92fa5e454b7734294f12a7b75126f09Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ef9785f429794567792561a584901faa9291d3eePatch
Impacted products
Vendor Product Version
Linux Linux Version: 9635720b7c88592214562cb72605bdab6708006c
Version: 9635720b7c88592214562cb72605bdab6708006c
Version: 9635720b7c88592214562cb72605bdab6708006c
Version: 9635720b7c88592214562cb72605bdab6708006c
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   Linux Linux Version: 5.14
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix memleak in sk_psock_queue_msg\n\nIf tcp_bpf_sendmsg is running during a tear down operation we may enqueue\ndata on the ingress msg queue while tear down is trying to free it.\n\n sk1 (redirect sk2)                         sk2\n -------------------                      ---------------\ntcp_bpf_sendmsg()\n tcp_bpf_send_verdict()\n  tcp_bpf_sendmsg_redir()\n   bpf_tcp_ingress()\n                                          sock_map_close()\n                                           lock_sock()\n    lock_sock() ... blocking\n                                           sk_psock_stop\n                                            sk_psock_clear_state(psock, SK_PSOCK_TX_ENABLED);\n                                           release_sock(sk);\n    lock_sock()\n    sk_mem_charge()\n    get_page()\n    sk_psock_queue_msg()\n     sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED);\n      drop_sk_msg()\n    release_sock()\n\nWhile drop_sk_msg(), the msg has charged memory form sk by sk_mem_charge\nand has sg pages need to put. To fix we use sk_msg_free() and then kfee()\nmsg.\n\nThis issue can cause the following info:\nWARNING: CPU: 0 PID: 9202 at net/core/stream.c:205 sk_stream_kill_queues+0xc8/0xe0\nCall Trace:\n \u003cIRQ\u003e\n inet_csk_destroy_sock+0x55/0x110\n tcp_rcv_state_process+0xe5f/0xe90\n ? sk_filter_trim_cap+0x10d/0x230\n ? tcp_v4_do_rcv+0x161/0x250\n tcp_v4_do_rcv+0x161/0x250\n tcp_v4_rcv+0xc3a/0xce0\n ip_protocol_deliver_rcu+0x3d/0x230\n ip_local_deliver_finish+0x54/0x60\n ip_local_deliver+0xfd/0x110\n ? ip_protocol_deliver_rcu+0x230/0x230\n ip_rcv+0xd6/0x100\n ? ip_local_deliver+0x110/0x110\n __netif_receive_skb_one_core+0x85/0xa0\n process_backlog+0xa4/0x160\n __napi_poll+0x29/0x1b0\n net_rx_action+0x287/0x300\n __do_softirq+0xff/0x2fc\n do_softirq+0x79/0x90\n \u003c/IRQ\u003e\n\nWARNING: CPU: 0 PID: 531 at net/ipv4/af_inet.c:154 inet_sock_destruct+0x175/0x1b0\nCall Trace:\n \u003cTASK\u003e\n __sk_destruct+0x24/0x1f0\n sk_psock_destroy+0x19b/0x1c0\n process_one_work+0x1b3/0x3c0\n ? process_one_work+0x3c0/0x3c0\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"
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    "cveId": "CVE-2022-49207",
    "datePublished": "2025-02-26T01:55:46.177Z",
    "dateReserved": "2025-02-26T01:49:39.291Z",
    "dateUpdated": "2025-10-01T19:47:06.855Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49207\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:00:57.817\",\"lastModified\":\"2025-10-01T20:15:55.557\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf, sockmap: Fix memleak in sk_psock_queue_msg\\n\\nIf tcp_bpf_sendmsg is running during a tear down operation we may enqueue\\ndata on the ingress msg queue while tear down is trying to free it.\\n\\n sk1 (redirect sk2)                         sk2\\n -------------------                      ---------------\\ntcp_bpf_sendmsg()\\n tcp_bpf_send_verdict()\\n  tcp_bpf_sendmsg_redir()\\n   bpf_tcp_ingress()\\n                                          sock_map_close()\\n                                           lock_sock()\\n    lock_sock() ... blocking\\n                                           sk_psock_stop\\n                                            sk_psock_clear_state(psock, SK_PSOCK_TX_ENABLED);\\n                                           release_sock(sk);\\n    lock_sock()\\n    sk_mem_charge()\\n    get_page()\\n    sk_psock_queue_msg()\\n     sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED);\\n      drop_sk_msg()\\n    release_sock()\\n\\nWhile drop_sk_msg(), the msg has charged memory form sk by sk_mem_charge\\nand has sg pages need to put. To fix we use sk_msg_free() and then kfee()\\nmsg.\\n\\nThis issue can cause the following info:\\nWARNING: CPU: 0 PID: 9202 at net/core/stream.c:205 sk_stream_kill_queues+0xc8/0xe0\\nCall Trace:\\n \u003cIRQ\u003e\\n inet_csk_destroy_sock+0x55/0x110\\n tcp_rcv_state_process+0xe5f/0xe90\\n ? sk_filter_trim_cap+0x10d/0x230\\n ? tcp_v4_do_rcv+0x161/0x250\\n tcp_v4_do_rcv+0x161/0x250\\n tcp_v4_rcv+0xc3a/0xce0\\n ip_protocol_deliver_rcu+0x3d/0x230\\n ip_local_deliver_finish+0x54/0x60\\n ip_local_deliver+0xfd/0x110\\n ? ip_protocol_deliver_rcu+0x230/0x230\\n ip_rcv+0xd6/0x100\\n ? ip_local_deliver+0x110/0x110\\n __netif_receive_skb_one_core+0x85/0xa0\\n process_backlog+0xa4/0x160\\n __napi_poll+0x29/0x1b0\\n net_rx_action+0x287/0x300\\n __do_softirq+0xff/0x2fc\\n do_softirq+0x79/0x90\\n \u003c/IRQ\u003e\\n\\nWARNING: CPU: 0 PID: 531 at net/ipv4/af_inet.c:154 inet_sock_destruct+0x175/0x1b0\\nCall Trace:\\n \u003cTASK\u003e\\n __sk_destruct+0x24/0x1f0\\n sk_psock_destroy+0x19b/0x1c0\\n process_one_work+0x1b3/0x3c0\\n ? process_one_work+0x3c0/0x3c0\\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\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, sockmap: Corregir p\u00e9rdida de memoria en sk_psock_queue_msg Si tcp_bpf_sendmsg se est\u00e1 ejecutando durante una operaci\u00f3n de desmontaje, podemos poner en cola datos en la cola de mensajes de entrada mientras el desmontaje intenta liberarlos. sk1 (redireccionar sk2) sk2 ------------------- --------------- tcp_bpf_sendmsg() tcp_bpf_send_verdict() tcp_bpf_sendmsg_redir() bpf_tcp_ingress() sock_map_close() lock_sock() lock_sock() ... bloqueando sk_psock_stop sk_psock_clear_state(psock, SK_PSOCK_TX_ENABLED); release_sock(sk); lock_sock() sk_mem_charge() get_page() sk_psock_queue_msg() sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED); drop_sk_msg() release_sock() Mientras se usa drop_sk_msg(), el mensaje ha cargado la memoria del formulario sk mediante sk_mem_charge y tiene p\u00e1ginas sg que se deben colocar. Para solucionarlo, usamos sk_msg_free() y luego kfee() msg. Este problema puede causar la siguiente informaci\u00f3n: ADVERTENCIA: CPU: 0 PID: 9202 en net/core/stream.c:205 sk_stream_kill_queues+0xc8/0xe0 Rastreo de llamadas:  inet_csk_destroy_sock+0x55/0x110 tcp_rcv_state_process+0xe5f/0xe90 ? sk_filter_trim_cap+0x10d/0x230 ? tcp_v4_do_rcv+0x161/0x250 tcp_v4_do_rcv+0x161/0x250 tcp_v4_rcv+0xc3a/0xce0 ip_protocol_deliver_rcu+0x3d/0x230 ip_local_deliver_finish+0x54/0x60 ip_local_deliver+0xfd/0x110 ? ip_protocol_deliver_rcu+0x230/0x230 ip_rcv+0xd6/0x100 ? ip_local_deliver+0x110/0x110 __netif_receive_skb_one_core+0x85/0xa0 process_backlog+0xa4/0x160 __napi_poll+0x29/0x1b0 net_rx_action+0x287/0x300 __do_softirq+0xff/0x2fc do_softirq+0x79/0x90  WARNING: CPU: 0 PID: 531 at net/ipv4/af_inet.c:154 inet_sock_destruct+0x175/0x1b0 Call Trace:  __sk_destruct+0x24/0x1f0 sk_psock_destroy+0x19b/0x1c0 process_one_work+0x1b3/0x3c0 ? process_one_work+0x3c0/0x3c0 worker_thread+0x30/0x350 ? process_one_work+0x3c0/0x3c0 kthread+0xe6/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 \"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.14\",\"versionEndExcluding\":\"5.15.33\",\"matchCriteriaId\":\"FB1C7FD1-C89E-4955-B265-456A9F757302\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.19\",\"matchCriteriaId\":\"20C43679-0439-405A-B97F-685BEE50613B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"5.17.2\",\"matchCriteriaId\":\"210C679C-CF84-44A3-8939-E629C87E54BF\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/03948ed6553960db62f1c33bec29e64d7c191a3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4dd2e947d3be13a4de3b3028859b9a6497266bcf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/938d3480b92fa5e454b7734294f12a7b75126f09\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef9785f429794567792561a584901faa9291d3ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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