CVE-2023-53393 (GCVE-0-2023-53393)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-05-11 19:44
VLAI
Title
RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device Currently, when mlx5_ib_get_hw_stats() is used for device (port_num = 0), there is a special handling in order to use the correct counters, but, port_num is being passed down the stack without any change. Also, some functions assume that port_num >=1. As a result, the following oops can occur. BUG: unable to handle page fault for address: ffff89510294f1a8 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] SMP CPU: 8 PID: 1382 Comm: devlink Tainted: G W 6.1.0-rc4_for_upstream_base_2022_11_10_16_12 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:_raw_spin_lock+0xc/0x20 Call Trace: <TASK> mlx5_ib_get_native_port_mdev+0x73/0xe0 [mlx5_ib] do_get_hw_stats.constprop.0+0x109/0x160 [mlx5_ib] mlx5_ib_get_hw_stats+0xad/0x180 [mlx5_ib] ib_setup_device_attrs+0xf0/0x290 [ib_core] ib_register_device+0x3bb/0x510 [ib_core] ? atomic_notifier_chain_register+0x67/0x80 __mlx5_ib_add+0x2b/0x80 [mlx5_ib] mlx5r_probe+0xb8/0x150 [mlx5_ib] ? auxiliary_match_id+0x6a/0x90 auxiliary_bus_probe+0x3c/0x70 ? driver_sysfs_add+0x6b/0x90 really_probe+0xcd/0x380 __driver_probe_device+0x80/0x170 driver_probe_device+0x1e/0x90 __device_attach_driver+0x7d/0x100 ? driver_allows_async_probing+0x60/0x60 ? driver_allows_async_probing+0x60/0x60 bus_for_each_drv+0x7b/0xc0 __device_attach+0xbc/0x200 bus_probe_device+0x87/0xa0 device_add+0x404/0x940 ? dev_set_name+0x53/0x70 __auxiliary_device_add+0x43/0x60 add_adev+0x99/0xe0 [mlx5_core] mlx5_attach_device+0xc8/0x120 [mlx5_core] mlx5_load_one_devl_locked+0xb2/0xe0 [mlx5_core] devlink_reload+0x133/0x250 devlink_nl_cmd_reload+0x480/0x570 ? devlink_nl_pre_doit+0x44/0x2b0 genl_family_rcv_msg_doit.isra.0+0xc2/0x110 genl_rcv_msg+0x180/0x2b0 ? devlink_nl_cmd_region_read_dumpit+0x540/0x540 ? devlink_reload+0x250/0x250 ? devlink_put+0x50/0x50 ? genl_family_rcv_msg_doit.isra.0+0x110/0x110 netlink_rcv_skb+0x54/0x100 genl_rcv+0x24/0x40 netlink_unicast+0x1f6/0x2c0 netlink_sendmsg+0x237/0x490 sock_sendmsg+0x33/0x40 __sys_sendto+0x103/0x160 ? handle_mm_fault+0x10e/0x290 ? do_user_addr_fault+0x1c0/0x5f0 __x64_sys_sendto+0x25/0x30 do_syscall_64+0x3d/0x90 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Fix it by setting port_num to 1 in order to get device status and remove unused variable.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:59 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7067 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 8d89870d63758363b07ace5c2df82d6bf865f78b (git)
Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 9a97da4674b890b4c28f5f12beba8c33a9cd2f49 (git)
Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < e597b003c736217b0c99ccf1b240c25009105238 (git)
Affected: aac4492ef23a176b6f1a41aadb99177eceb1fc06 , < 38b50aa44495d5eb4218f0b82fc2da76505cec53 (git)
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Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.19 , ≤ 6.0.* (semver)
Unaffected: 6.1.5 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device\n\nCurrently, when mlx5_ib_get_hw_stats() is used for device (port_num = 0),\nthere is a special handling in order to use the correct counters, but,\nport_num is being passed down the stack without any change.  Also, some\nfunctions assume that port_num \u003e=1. As a result, the following oops can\noccur.\n\n BUG: unable to handle page fault for address: ffff89510294f1a8\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] SMP\n CPU: 8 PID: 1382 Comm: devlink Tainted: G W          6.1.0-rc4_for_upstream_base_2022_11_10_16_12 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:_raw_spin_lock+0xc/0x20\n Call Trace:\n  \u003cTASK\u003e\n  mlx5_ib_get_native_port_mdev+0x73/0xe0 [mlx5_ib]\n  do_get_hw_stats.constprop.0+0x109/0x160 [mlx5_ib]\n  mlx5_ib_get_hw_stats+0xad/0x180 [mlx5_ib]\n  ib_setup_device_attrs+0xf0/0x290 [ib_core]\n  ib_register_device+0x3bb/0x510 [ib_core]\n  ? atomic_notifier_chain_register+0x67/0x80\n  __mlx5_ib_add+0x2b/0x80 [mlx5_ib]\n  mlx5r_probe+0xb8/0x150 [mlx5_ib]\n  ? auxiliary_match_id+0x6a/0x90\n  auxiliary_bus_probe+0x3c/0x70\n  ? driver_sysfs_add+0x6b/0x90\n  really_probe+0xcd/0x380\n  __driver_probe_device+0x80/0x170\n  driver_probe_device+0x1e/0x90\n  __device_attach_driver+0x7d/0x100\n  ? driver_allows_async_probing+0x60/0x60\n  ? driver_allows_async_probing+0x60/0x60\n  bus_for_each_drv+0x7b/0xc0\n  __device_attach+0xbc/0x200\n  bus_probe_device+0x87/0xa0\n  device_add+0x404/0x940\n  ? dev_set_name+0x53/0x70\n  __auxiliary_device_add+0x43/0x60\n  add_adev+0x99/0xe0 [mlx5_core]\n  mlx5_attach_device+0xc8/0x120 [mlx5_core]\n  mlx5_load_one_devl_locked+0xb2/0xe0 [mlx5_core]\n  devlink_reload+0x133/0x250\n  devlink_nl_cmd_reload+0x480/0x570\n  ? devlink_nl_pre_doit+0x44/0x2b0\n  genl_family_rcv_msg_doit.isra.0+0xc2/0x110\n  genl_rcv_msg+0x180/0x2b0\n  ? devlink_nl_cmd_region_read_dumpit+0x540/0x540\n  ? devlink_reload+0x250/0x250\n  ? devlink_put+0x50/0x50\n  ? genl_family_rcv_msg_doit.isra.0+0x110/0x110\n  netlink_rcv_skb+0x54/0x100\n  genl_rcv+0x24/0x40\n  netlink_unicast+0x1f6/0x2c0\n  netlink_sendmsg+0x237/0x490\n  sock_sendmsg+0x33/0x40\n  __sys_sendto+0x103/0x160\n  ? handle_mm_fault+0x10e/0x290\n  ? do_user_addr_fault+0x1c0/0x5f0\n  __x64_sys_sendto+0x25/0x30\n  do_syscall_64+0x3d/0x90\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFix it by setting port_num to 1 in order to get device status and remove\nunused variable."
          }
        ],
        "id": "CVE-2023-53393",
        "lastModified": "2026-06-17T06:45:11.927",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2023-53393",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:59:26.844938Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-09-18T14:15:42.463",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/38b50aa44495d5eb4218f0b82fc2da76505cec53"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8d89870d63758363b07ace5c2df82d6bf865f78b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9a97da4674b890b4c28f5f12beba8c33a9cd2f49"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e597b003c736217b0c99ccf1b240c25009105238"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:22:28+00:00",
      "cve": "CVE-2023-53393",
      "id": "CVE-2023-53393",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "706",
      "product_status:known_affected": "38",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53393.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 5.5,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-53393",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-01-14T18:59:26.844938Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "description": "CWE-noinfo Not enough information",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-01-14T18:59:22.448Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/infiniband/hw/mlx5/counters.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "8d89870d63758363b07ace5c2df82d6bf865f78b",
                  "status": "affected",
                  "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06",
                  "versionType": "git"
                },
                {
                  "lessThan": "9a97da4674b890b4c28f5f12beba8c33a9cd2f49",
                  "status": "affected",
                  "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06",
                  "versionType": "git"
                },
                {
                  "lessThan": "e597b003c736217b0c99ccf1b240c25009105238",
                  "status": "affected",
                  "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06",
                  "versionType": "git"
                },
                {
                  "lessThan": "38b50aa44495d5eb4218f0b82fc2da76505cec53",
                  "status": "affected",
                  "version": "aac4492ef23a176b6f1a41aadb99177eceb1fc06",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/infiniband/hw/mlx5/counters.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.16"
                },
                {
                  "lessThan": "4.16",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.87",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.0.*",
                  "status": "unaffected",
                  "version": "6.0.19",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.5",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.2",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.87",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.0.19",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.5",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.2",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device\n\nCurrently, when mlx5_ib_get_hw_stats() is used for device (port_num = 0),\nthere is a special handling in order to use the correct counters, but,\nport_num is being passed down the stack without any change.  Also, some\nfunctions assume that port_num \u003e=1. As a result, the following oops can\noccur.\n\n BUG: unable to handle page fault for address: ffff89510294f1a8\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] SMP\n CPU: 8 PID: 1382 Comm: devlink Tainted: G W          6.1.0-rc4_for_upstream_base_2022_11_10_16_12 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:_raw_spin_lock+0xc/0x20\n Call Trace:\n  \u003cTASK\u003e\n  mlx5_ib_get_native_port_mdev+0x73/0xe0 [mlx5_ib]\n  do_get_hw_stats.constprop.0+0x109/0x160 [mlx5_ib]\n  mlx5_ib_get_hw_stats+0xad/0x180 [mlx5_ib]\n  ib_setup_device_attrs+0xf0/0x290 [ib_core]\n  ib_register_device+0x3bb/0x510 [ib_core]\n  ? atomic_notifier_chain_register+0x67/0x80\n  __mlx5_ib_add+0x2b/0x80 [mlx5_ib]\n  mlx5r_probe+0xb8/0x150 [mlx5_ib]\n  ? auxiliary_match_id+0x6a/0x90\n  auxiliary_bus_probe+0x3c/0x70\n  ? driver_sysfs_add+0x6b/0x90\n  really_probe+0xcd/0x380\n  __driver_probe_device+0x80/0x170\n  driver_probe_device+0x1e/0x90\n  __device_attach_driver+0x7d/0x100\n  ? driver_allows_async_probing+0x60/0x60\n  ? driver_allows_async_probing+0x60/0x60\n  bus_for_each_drv+0x7b/0xc0\n  __device_attach+0xbc/0x200\n  bus_probe_device+0x87/0xa0\n  device_add+0x404/0x940\n  ? dev_set_name+0x53/0x70\n  __auxiliary_device_add+0x43/0x60\n  add_adev+0x99/0xe0 [mlx5_core]\n  mlx5_attach_device+0xc8/0x120 [mlx5_core]\n  mlx5_load_one_devl_locked+0xb2/0xe0 [mlx5_core]\n  devlink_reload+0x133/0x250\n  devlink_nl_cmd_reload+0x480/0x570\n  ? devlink_nl_pre_doit+0x44/0x2b0\n  genl_family_rcv_msg_doit.isra.0+0xc2/0x110\n  genl_rcv_msg+0x180/0x2b0\n  ? devlink_nl_cmd_region_read_dumpit+0x540/0x540\n  ? devlink_reload+0x250/0x250\n  ? devlink_put+0x50/0x50\n  ? genl_family_rcv_msg_doit.isra.0+0x110/0x110\n  netlink_rcv_skb+0x54/0x100\n  genl_rcv+0x24/0x40\n  netlink_unicast+0x1f6/0x2c0\n  netlink_sendmsg+0x237/0x490\n  sock_sendmsg+0x33/0x40\n  __sys_sendto+0x103/0x160\n  ? handle_mm_fault+0x10e/0x290\n  ? do_user_addr_fault+0x1c0/0x5f0\n  __x64_sys_sendto+0x25/0x30\n  do_syscall_64+0x3d/0x90\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFix it by setting port_num to 1 in order to get device status and remove\nunused variable."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T19:44:06.166Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/8d89870d63758363b07ace5c2df82d6bf865f78b"
            },
            {
              "url": "https://git.kernel.org/stable/c/9a97da4674b890b4c28f5f12beba8c33a9cd2f49"
            },
            {
              "url": "https://git.kernel.org/stable/c/e597b003c736217b0c99ccf1b240c25009105238"
            },
            {
              "url": "https://git.kernel.org/stable/c/38b50aa44495d5eb4218f0b82fc2da76505cec53"
            }
          ],
          "title": "RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-53393",
        "datePublished": "2025-09-18T13:33:35.133Z",
        "dateReserved": "2025-09-17T14:54:09.737Z",
        "dateUpdated": "2026-05-11T19:44:06.166Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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