CVE-2023-53462 (GCVE-0-2023-53462)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:42 – Updated: 2026-08-05 09:14
VLAI
Title
hsr: Fix uninit-value access in fill_frame_info()
Summary
In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in fill_frame_info() Syzbot reports the following uninit-value access problem. ===================================================== BUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:601 [inline] BUG: KMSAN: uninit-value in hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616 fill_frame_info net/hsr/hsr_forward.c:601 [inline] hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616 hsr_dev_xmit+0x192/0x330 net/hsr/hsr_device.c:223 __netdev_start_xmit include/linux/netdevice.h:4889 [inline] netdev_start_xmit include/linux/netdevice.h:4903 [inline] xmit_one net/core/dev.c:3544 [inline] dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3560 __dev_queue_xmit+0x34d0/0x52a0 net/core/dev.c:4340 dev_queue_xmit include/linux/netdevice.h:3082 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3087 [inline] packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119 sock_sendmsg_nosec net/socket.c:730 [inline] sock_sendmsg net/socket.c:753 [inline] __sys_sendto+0x781/0xa30 net/socket.c:2176 __do_sys_sendto net/socket.c:2188 [inline] __se_sys_sendto net/socket.c:2184 [inline] __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Uninit was created at: slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767 slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523 kmalloc_reserve+0x148/0x470 net/core/skbuff.c:559 __alloc_skb+0x318/0x740 net/core/skbuff.c:644 alloc_skb include/linux/skbuff.h:1286 [inline] alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6299 sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2794 packet_alloc_skb net/packet/af_packet.c:2936 [inline] packet_snd net/packet/af_packet.c:3030 [inline] packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119 sock_sendmsg_nosec net/socket.c:730 [inline] sock_sendmsg net/socket.c:753 [inline] __sys_sendto+0x781/0xa30 net/socket.c:2176 __do_sys_sendto net/socket.c:2188 [inline] __se_sys_sendto net/socket.c:2184 [inline] __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 It is because VLAN not yet supported in hsr driver. Return error when protocol is ETH_P_8021Q in fill_frame_info() now to fix it.
Severity
7.1 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 451d8123f89791bb628277c0bdb4cae34a3563e6 , < 1e90a93ac4845c31724ec5dc96fb51e608435a9d (git)
Affected: 451d8123f89791bb628277c0bdb4cae34a3563e6 , < 6a4480c5e6ebaf9f797ac300e2a97a02d4e70cfd (git)
Affected: 451d8123f89791bb628277c0bdb4cae34a3563e6 , < 61866f7d814e5792bf47410d7d3ff32e49bd292a (git)
Affected: 451d8123f89791bb628277c0bdb4cae34a3563e6 , < ed7a0ba7e840dc5d54cdbd8466be27e6aedce1e5 (git)
Affected: 451d8123f89791bb628277c0bdb4cae34a3563e6 , < 484b4833c604c0adcf19eac1ca14b60b757355b5 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.195 , ≤ 5.10.* (semver)
Unaffected: 5.15.132 , ≤ 5.15.* (semver)
Unaffected: 6.1.54 , ≤ 6.1.* (semver)
Unaffected: 6.5.4 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/hsr/hsr_forward.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1e90a93ac4845c31724ec5dc96fb51e608435a9d",
              "status": "affected",
              "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
              "versionType": "git"
            },
            {
              "lessThan": "6a4480c5e6ebaf9f797ac300e2a97a02d4e70cfd",
              "status": "affected",
              "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
              "versionType": "git"
            },
            {
              "lessThan": "61866f7d814e5792bf47410d7d3ff32e49bd292a",
              "status": "affected",
              "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
              "versionType": "git"
            },
            {
              "lessThan": "ed7a0ba7e840dc5d54cdbd8466be27e6aedce1e5",
              "status": "affected",
              "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
              "versionType": "git"
            },
            {
              "lessThan": "484b4833c604c0adcf19eac1ca14b60b757355b5",
              "status": "affected",
              "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/hsr/hsr_forward.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.132",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.195",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.132",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.54",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.4",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhsr: Fix uninit-value access in fill_frame_info()\n\nSyzbot reports the following uninit-value access problem.\n\n=====================================================\nBUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:601 [inline]\nBUG: KMSAN: uninit-value in hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616\n fill_frame_info net/hsr/hsr_forward.c:601 [inline]\n hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616\n hsr_dev_xmit+0x192/0x330 net/hsr/hsr_device.c:223\n __netdev_start_xmit include/linux/netdevice.h:4889 [inline]\n netdev_start_xmit include/linux/netdevice.h:4903 [inline]\n xmit_one net/core/dev.c:3544 [inline]\n dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3560\n __dev_queue_xmit+0x34d0/0x52a0 net/core/dev.c:4340\n dev_queue_xmit include/linux/netdevice.h:3082 [inline]\n packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3087 [inline]\n packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119\n sock_sendmsg_nosec net/socket.c:730 [inline]\n sock_sendmsg net/socket.c:753 [inline]\n __sys_sendto+0x781/0xa30 net/socket.c:2176\n __do_sys_sendto net/socket.c:2188 [inline]\n __se_sys_sendto net/socket.c:2184 [inline]\n __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\nUninit was created at:\n slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767\n slab_alloc_node mm/slub.c:3478 [inline]\n kmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523\n kmalloc_reserve+0x148/0x470 net/core/skbuff.c:559\n __alloc_skb+0x318/0x740 net/core/skbuff.c:644\n alloc_skb include/linux/skbuff.h:1286 [inline]\n alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6299\n sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2794\n packet_alloc_skb net/packet/af_packet.c:2936 [inline]\n packet_snd net/packet/af_packet.c:3030 [inline]\n packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119\n sock_sendmsg_nosec net/socket.c:730 [inline]\n sock_sendmsg net/socket.c:753 [inline]\n __sys_sendto+0x781/0xa30 net/socket.c:2176\n __do_sys_sendto net/socket.c:2188 [inline]\n __se_sys_sendto net/socket.c:2184 [inline]\n __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\nIt is because VLAN not yet supported in hsr driver. Return error\nwhen protocol is ETH_P_8021Q in fill_frame_info() now to fix it."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - HSR/PRP is an L2 industrial redundancy protocol; PRP slave ports have no invalid_dan_ingress_frame filter, so crafted ETH_P_8021Q frames from the same LAN/segment reach fill_frame_info() via hsr_handle_frame() without crossing a routed network.\nAC:L - An attacker only needs to send an Ethernet frame with ethertype 802.1Q (including a short frame on soft interfaces such as veth) to reliably hit the missing VLAN length check and continued processing path.\nPR:N - The highest-impact path is an unauthenticated adjacent L2 peer sending frames to an already-configured PRP/HSR slave; no local account or capability on the target is required.\nUI:N - Exploitation requires no victim action beyond the HSR/PRP interface already being up and receiving frames.\nS:U - Impact is confined to the host kernel processing HSR/PRP frames; this is not a VM escape, IOMMU bypass, or other cross-authority boundary.\nC:L - The bug reads past a 14-byte Ethernet header into uninitialized/out-of-bounds skb bytes for the VLAN encapsulated proto (a few bytes), and with is_vlan set those bytes can be incorporated into forwarded frames, yielding a limited disclosure rather than arbitrary read.\nI:N - The defect is an out-of-bounds/uninit read and incorrect VLAN continuation; it does not provide a kernel write primitive or integrity-corrupting memory write.\nA:H - Out-of-bounds access past short skb data into adjacent skb memory can fault or otherwise destabilize the kernel while processing attacker-controlled frames, so availability impact is high."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:14:11.442Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1e90a93ac4845c31724ec5dc96fb51e608435a9d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a4480c5e6ebaf9f797ac300e2a97a02d4e70cfd"
        },
        {
          "url": "https://git.kernel.org/stable/c/61866f7d814e5792bf47410d7d3ff32e49bd292a"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed7a0ba7e840dc5d54cdbd8466be27e6aedce1e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/484b4833c604c0adcf19eac1ca14b60b757355b5"
        }
      ],
      "title": "hsr: Fix uninit-value access in fill_frame_info()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53462",
    "datePublished": "2025-10-01T11:42:33.434Z",
    "dateReserved": "2025-10-01T11:39:39.399Z",
    "dateUpdated": "2026-08-05T09:14:11.442Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53462",
      "date": "2026-09-23",
      "epss": "0.00227",
      "percentile": "0.13687"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "net/hsr/hsr_forward.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "1e90a93ac4845c31724ec5dc96fb51e608435a9d",
                    "status": "affected",
                    "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6a4480c5e6ebaf9f797ac300e2a97a02d4e70cfd",
                    "status": "affected",
                    "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "61866f7d814e5792bf47410d7d3ff32e49bd292a",
                    "status": "affected",
                    "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ed7a0ba7e840dc5d54cdbd8466be27e6aedce1e5",
                    "status": "affected",
                    "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "484b4833c604c0adcf19eac1ca14b60b757355b5",
                    "status": "affected",
                    "version": "451d8123f89791bb628277c0bdb4cae34a3563e6",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "net/hsr/hsr_forward.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.9"
                  },
                  {
                    "lessThan": "5.9",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.195",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.132",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.54",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.5.*",
                    "status": "unaffected",
                    "version": "6.5.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.6",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CEC6CA87-872A-4D72-81C5-4D4C50D7A3A6",
                    "versionEndExcluding": "5.10.195",
                    "versionStartIncluding": "5.9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5913891D-409A-4EEC-9231-F2EF5A493BC7",
                    "versionEndExcluding": "5.15.132",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7353B9B4-AFFC-45DE-840E-1A7D2B00E7AD",
                    "versionEndExcluding": "6.1.54",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CA8C8B88-AF36-445D-A228-AD78F3615373",
                    "versionEndExcluding": "6.5.4",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "84267A4F-DBC2-444F-B41D-69E15E1BEC97",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhsr: Fix uninit-value access in fill_frame_info()\n\nSyzbot reports the following uninit-value access problem.\n\n=====================================================\nBUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:601 [inline]\nBUG: KMSAN: uninit-value in hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616\n fill_frame_info net/hsr/hsr_forward.c:601 [inline]\n hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616\n hsr_dev_xmit+0x192/0x330 net/hsr/hsr_device.c:223\n __netdev_start_xmit include/linux/netdevice.h:4889 [inline]\n netdev_start_xmit include/linux/netdevice.h:4903 [inline]\n xmit_one net/core/dev.c:3544 [inline]\n dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3560\n __dev_queue_xmit+0x34d0/0x52a0 net/core/dev.c:4340\n dev_queue_xmit include/linux/netdevice.h:3082 [inline]\n packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3087 [inline]\n packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119\n sock_sendmsg_nosec net/socket.c:730 [inline]\n sock_sendmsg net/socket.c:753 [inline]\n __sys_sendto+0x781/0xa30 net/socket.c:2176\n __do_sys_sendto net/socket.c:2188 [inline]\n __se_sys_sendto net/socket.c:2184 [inline]\n __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\nUninit was created at:\n slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767\n slab_alloc_node mm/slub.c:3478 [inline]\n kmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523\n kmalloc_reserve+0x148/0x470 net/core/skbuff.c:559\n __alloc_skb+0x318/0x740 net/core/skbuff.c:644\n alloc_skb include/linux/skbuff.h:1286 [inline]\n alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6299\n sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2794\n packet_alloc_skb net/packet/af_packet.c:2936 [inline]\n packet_snd net/packet/af_packet.c:3030 [inline]\n packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119\n sock_sendmsg_nosec net/socket.c:730 [inline]\n sock_sendmsg net/socket.c:753 [inline]\n __sys_sendto+0x781/0xa30 net/socket.c:2176\n __do_sys_sendto net/socket.c:2188 [inline]\n __se_sys_sendto net/socket.c:2184 [inline]\n __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\nIt is because VLAN not yet supported in hsr driver. Return error\nwhen protocol is ETH_P_8021Q in fill_frame_info() now to fix it."
          }
        ],
        "id": "CVE-2023-53462",
        "lastModified": "2026-08-04T10:19:07.300",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 4.2,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "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"
            }
          ]
        },
        "published": "2025-10-01T12:15:47.887",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1e90a93ac4845c31724ec5dc96fb51e608435a9d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/484b4833c604c0adcf19eac1ca14b60b757355b5"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/61866f7d814e5792bf47410d7d3ff32e49bd292a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6a4480c5e6ebaf9f797ac300e2a97a02d4e70cfd"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ed7a0ba7e840dc5d54cdbd8466be27e6aedce1e5"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-908"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T22:55:11+00:00",
      "cve": "CVE-2023-53462",
      "id": "CVE-2023-53462",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "279",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "166",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel HSR driver: Denial of Service via uninitialized value access",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53462.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.