Vulnerability-Lookup

GSD-2024-26615

Vulnerability from gsd - Updated: 2024-02-20 06:02

Details

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix illegal rmb_desc access in SMC-D connection dump A crash was found when dumping SMC-D connections. It can be reproduced by following steps: - run nginx/wrk test: smc_run nginx smc_run wrk -t 16 -c 1000 -d <duration> -H 'Connection: Close' <URL> - continuously dump SMC-D connections in parallel: watch -n 1 'smcss -D' BUG: kernel NULL pointer dereference, address: 0000000000000030 CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G E 6.7.0+ #55 RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag] Call Trace: <TASK> ? __die+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 ____sys_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 It is possible that the connection is in process of being established when we dump it. Assumed that the connection has been registered in a link group by smc_conn_create() but the rmb_desc has not yet been initialized by smc_buf_create(), thus causing the illegal access to conn->rmb_desc. So fix it by checking before dump.

Aliases

CVE-2024-26615

JSON

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{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-26615"
      ],
      "details": "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.",
      "id": "GSD-2024-26615",
      "modified": "2024-02-20T06:02:29.259848Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2024-26615",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "4b1b7d3b30a6",
                          "version_value": "27aea6483891"
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "status": "affected",
                                "version": "4.19"
                              },
                              {
                                "lessThan": "4.19",
                                "status": "unaffected",
                                "version": "0",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "4.19.*",
                                "status": "unaffected",
                                "version": "4.19.307",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "5.4.*",
                                "status": "unaffected",
                                "version": "5.4.269",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "5.10.*",
                                "status": "unaffected",
                                "version": "5.10.210",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "5.15.*",
                                "status": "unaffected",
                                "version": "5.15.149",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.1.*",
                                "status": "unaffected",
                                "version": "6.1.76",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.6.*",
                                "status": "unaffected",
                                "version": "6.6.15",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.7.*",
                                "status": "unaffected",
                                "version": "6.7.3",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "*",
                                "status": "unaffected",
                                "version": "6.8",
                                "versionType": "original_commit_for_fix"
                              }
                            ]
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Linux"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "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."
          }
        ]
      },
      "generator": {
        "engine": "bippy-8df59b4913de"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22"
          },
          {
            "name": "https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be"
          },
          {
            "name": "https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d"
          },
          {
            "name": "https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a"
          },
          {
            "name": "https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a"
          },
          {
            "name": "https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9"
          },
          {
            "name": "https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6"
          },
          {
            "name": "https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "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."
          }
        ],
        "id": "CVE-2024-26615",
        "lastModified": "2024-03-12T12:40:13.500",
        "metrics": {},
        "published": "2024-03-11T18:15:19.337",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "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"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}

CVE-2024-26615 (GCVE-0-2024-26615)

Vulnerability from cvelistv5 – Published: 2024-02-29 15:52 – Updated: 2025-05-04 08:52

Title

net/smc: fix illegal rmb_desc access in SMC-D connection dump

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/27aea64838914c612…
	https://git.kernel.org/stable/c/1fea9969b81c67d0c…
	https://git.kernel.org/stable/c/5fed92ca32eafbfae…
	https://git.kernel.org/stable/c/68b888d51ac82f2b9…
	https://git.kernel.org/stable/c/6994dba06321e3c48…
	https://git.kernel.org/stable/c/a164c2922675d7051…
	https://git.kernel.org/stable/c/8f3f9186e5bb96a9c…
	https://git.kernel.org/stable/c/dbc153fd3c142909e…

Impacted products

Vendor

Product

Version

Linux

Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < 27aea64838914c6122db5b8bd4bed865c9736f22 (git)
Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < 1fea9969b81c67d0cb1611d1b8b7d19049d937be (git)
Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < 5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d (git)
Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < 68b888d51ac82f2b96bf5e077a31d76afcdef25a (git)
Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < 6994dba06321e3c48fdad0ba796a063d9d82183a (git)
Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < a164c2922675d7051805cdaf2b07daffe44f20d9 (git)
Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < 8f3f9186e5bb96a9c9654c41653210e3ea7e48a6 (git)
Affected: 4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d , < dbc153fd3c142909e564bb256da087e13fbf239c (git)

Linux

Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 4.19.307 , ≤ 4.19.* (semver)
Unaffected: 5.4.269 , ≤ 5.4.* (semver)
Unaffected: 5.10.210 , ≤ 5.10.* (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.76 , ≤ 6.1.* (semver)
Unaffected: 6.6.15 , ≤ 6.6.* (semver)
Unaffected: 6.7.3 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:07:19.717Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
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              "x_transferred"
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            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
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        ],
        "title": "CVE Program Container"
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26615",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:57:17.586367Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:50.241Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
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              "versionType": "git"
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        },
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/smc/smc_diag.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.307",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.269",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.76",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
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      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.307",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.269",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.210",
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                  "vulnerable": true
                },
                {
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.76",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.15",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
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              "negate": false,
              "operator": "OR"
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      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:52:21.717Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22"
        },
        {
          "url": "https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be"
        },
        {
          "url": "https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d"
        },
        {
          "url": "https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a"
        },
        {
          "url": "https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a"
        },
        {
          "url": "https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6"
        },
        {
          "url": "https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c"
        }
      ],
      "title": "net/smc: fix illegal rmb_desc access in SMC-D connection dump",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "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": "2025-05-04T08:52:21.717Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GSD-2024-26615

CVE-2024-26615 (GCVE-0-2024-26615)

Tags

Sightings

Nomenclature