cve-2024-26615
Vulnerability from cvelistv5
Published
2024-02-29 15:52
Modified
2024-11-05 09:12
Severity ?
Summary
net/smc: fix illegal rmb_desc access in SMC-D connection dump
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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          "vendor": "Linux",
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              "versionType": "semver"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix illegal rmb_desc access in SMC-D connection dump\n\nA crash was found when dumping SMC-D connections. It can be reproduced\nby following steps:\n\n- run nginx/wrk test:\n  smc_run nginx\n  smc_run wrk -t 16 -c 1000 -d \u003cduration\u003e -H \u0027Connection: Close\u0027 \u003cURL\u003e\n\n- continuously dump SMC-D connections in parallel:\n  watch -n 1 \u0027smcss -D\u0027\n\n BUG: kernel NULL pointer dereference, address: 0000000000000030\n CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G\tE      6.7.0+ #55\n RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n Call Trace:\n  \u003cTASK\u003e\n  ? __die+0x24/0x70\n  ? page_fault_oops+0x66/0x150\n  ? exc_page_fault+0x69/0x140\n  ? asm_exc_page_fault+0x26/0x30\n  ? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n  ? __kmalloc_node_track_caller+0x35d/0x430\n  ? __alloc_skb+0x77/0x170\n  smc_diag_dump_proto+0xd0/0xf0 [smc_diag]\n  smc_diag_dump+0x26/0x60 [smc_diag]\n  netlink_dump+0x19f/0x320\n  __netlink_dump_start+0x1dc/0x300\n  smc_diag_handler_dump+0x6a/0x80 [smc_diag]\n  ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]\n  sock_diag_rcv_msg+0x121/0x140\n  ? __pfx_sock_diag_rcv_msg+0x10/0x10\n  netlink_rcv_skb+0x5a/0x110\n  sock_diag_rcv+0x28/0x40\n  netlink_unicast+0x22a/0x330\n  netlink_sendmsg+0x1f8/0x420\n  __sock_sendmsg+0xb0/0xc0\n  ____sys_sendmsg+0x24e/0x300\n  ? copy_msghdr_from_user+0x62/0x80\n  ___sys_sendmsg+0x7c/0xd0\n  ? __do_fault+0x34/0x160\n  ? do_read_fault+0x5f/0x100\n  ? do_fault+0xb0/0x110\n  ? __handle_mm_fault+0x2b0/0x6c0\n  __sys_sendmsg+0x4d/0x80\n  do_syscall_64+0x69/0x180\n  entry_SYSCALL_64_after_hwframe+0x6e/0x76\n\nIt is possible that the connection is in process of being established\nwhen we dump it. Assumed that the connection has been registered in a\nlink group by smc_conn_create() but the rmb_desc has not yet been\ninitialized by smc_buf_create(), thus causing the illegal access to\nconn-\u003ermb_desc. So fix it by checking before dump."
        }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c"
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      "title": "net/smc: fix illegal rmb_desc access in SMC-D connection dump",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26615",
    "datePublished": "2024-02-29T15:52:18.843Z",
    "dateReserved": "2024-02-19T14:20:24.131Z",
    "dateUpdated": "2024-11-05T09:12:37.773Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26615\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-11T18:15:19.337\",\"lastModified\":\"2024-11-05T10:15:33.360\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/smc: fix illegal rmb_desc access in SMC-D connection dump\\n\\nA crash was found when dumping SMC-D connections. It can be reproduced\\nby following steps:\\n\\n- run nginx/wrk test:\\n  smc_run nginx\\n  smc_run wrk -t 16 -c 1000 -d \u003cduration\u003e -H \u0027Connection: Close\u0027 \u003cURL\u003e\\n\\n- continuously dump SMC-D connections in parallel:\\n  watch -n 1 \u0027smcss -D\u0027\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000030\\n CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G\\tE      6.7.0+ #55\\n RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\\n Call Trace:\\n  \u003cTASK\u003e\\n  ? __die+0x24/0x70\\n  ? page_fault_oops+0x66/0x150\\n  ? exc_page_fault+0x69/0x140\\n  ? asm_exc_page_fault+0x26/0x30\\n  ? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\\n  ? __kmalloc_node_track_caller+0x35d/0x430\\n  ? __alloc_skb+0x77/0x170\\n  smc_diag_dump_proto+0xd0/0xf0 [smc_diag]\\n  smc_diag_dump+0x26/0x60 [smc_diag]\\n  netlink_dump+0x19f/0x320\\n  __netlink_dump_start+0x1dc/0x300\\n  smc_diag_handler_dump+0x6a/0x80 [smc_diag]\\n  ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]\\n  sock_diag_rcv_msg+0x121/0x140\\n  ? __pfx_sock_diag_rcv_msg+0x10/0x10\\n  netlink_rcv_skb+0x5a/0x110\\n  sock_diag_rcv+0x28/0x40\\n  netlink_unicast+0x22a/0x330\\n  netlink_sendmsg+0x1f8/0x420\\n  __sock_sendmsg+0xb0/0xc0\\n  ____sys_sendmsg+0x24e/0x300\\n  ? copy_msghdr_from_user+0x62/0x80\\n  ___sys_sendmsg+0x7c/0xd0\\n  ? __do_fault+0x34/0x160\\n  ? do_read_fault+0x5f/0x100\\n  ? do_fault+0xb0/0x110\\n  ? __handle_mm_fault+0x2b0/0x6c0\\n  __sys_sendmsg+0x4d/0x80\\n  do_syscall_64+0x69/0x180\\n  entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n\\nIt is possible that the connection is in process of being established\\nwhen we dump it. Assumed that the connection has been registered in a\\nlink group by smc_conn_create() but the rmb_desc has not yet been\\ninitialized by smc_buf_create(), thus causing the illegal access to\\nconn-\u003ermb_desc. So fix it by checking before dump.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: corrige el acceso ilegal a rmb_desc en el volcado de conexiones SMC-D Se encontr\u00f3 un bloqueo al volcar conexiones SMC-D. Se puede reproducir mediante los siguientes pasos: - ejecute la prueba nginx/wrk: smc_run nginx smc_run wrk -t 16 -c 1000 -d  -H \u0027Conexi\u00f3n: Cerrar\u0027  - volcar continuamente las conexiones SMC-D en paralelo: watch -n 1 \u0027smcss -D\u0027 ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 00000000000000030 CPU: 2 PID: 7204 Comm: smcss Kdump: cargado Contaminado: GE 6.7.0+ #55 RIP: 0010:__smc_diag_dump.constprop.0+ 0x5e5/0x620 [smc_diag] Seguimiento de llamadas: ? __morir+0x24/0x70 ? page_fault_oops+0x66/0x150? exc_page_fault+0x69/0x140? asm_exc_page_fault+0x26/0x30? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag] ? __kmalloc_node_track_caller+0x35d/0x430 ? __alloc_skb+0x77/0x170 smc_diag_dump_proto+0xd0/0xf0 [smc_diag] smc_diag_dump+0x26/0x60 [smc_diag] netlink_dump+0x19f/0x320 __netlink_dump_start+0x1dc/0x300 smc_diag_handler_dump+ 0x6a/0x80 [smc_diag] ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag] sock_diag_rcv_msg+0x121/0x140 ? __pfx_sock_diag_rcv_msg+0x10/0x10 netlink_rcv_skb+0x5a/0x110 sock_diag_rcv+0x28/0x40 netlink_unicast+0x22a/0x330 netlink_sendmsg+0x1f8/0x420 __sock_sendmsg+0xb0/0xc0 ____s ys_sendmsg+0x24e/0x300? copy_msghdr_from_user+0x62/0x80 ___sys_sendmsg+0x7c/0xd0 ? __do_fault+0x34/0x160? do_read_fault+0x5f/0x100? do_fault+0xb0/0x110? __handle_mm_fault+0x2b0/0x6c0 __sys_sendmsg+0x4d/0x80 do_syscall_64+0x69/0x180 Entry_SYSCALL_64_after_hwframe+0x6e/0x76 Es posible que la conexi\u00f3n est\u00e9 en proceso de establecerse cuando la volcamos. Se supone que la conexi\u00f3n ha sido registrada en un grupo de enlaces por smc_conn_create() pero rmb_desc a\u00fan no ha sido inicializado por smc_buf_create(), lo que provoca el acceso ilegal a conn-\u0026gt;rmb_desc. As\u00ed que solucionelo comprobando antes del volcado.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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