FKIE_CVE-2023-53190

Vulnerability from fkie_nvd - Published: 2025-09-15 14:15 - Updated: 2025-12-02 02:42
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: vxlan: Fix memory leaks in error path The memory allocated by vxlan_vnigroup_init() is not freed in the error path, leading to memory leaks [1]. Fix by calling vxlan_vnigroup_uninit() in the error path. The leaks can be reproduced by annotating gro_cells_init() with ALLOW_ERROR_INJECTION() and then running: # echo "100" > /sys/kernel/debug/fail_function/probability # echo "1" > /sys/kernel/debug/fail_function/times # echo "gro_cells_init" > /sys/kernel/debug/fail_function/inject # printf %#x -12 > /sys/kernel/debug/fail_function/gro_cells_init/retval # ip link add name vxlan0 type vxlan dstport 4789 external vnifilter RTNETLINK answers: Cannot allocate memory [1] unreferenced object 0xffff88810db84a00 (size 512): comm "ip", pid 330, jiffies 4295010045 (age 66.016s) hex dump (first 32 bytes): f8 d5 76 0e 81 88 ff ff 01 00 00 00 00 00 00 02 ..v............. 03 00 04 00 48 00 00 00 00 00 00 01 04 00 01 00 ....H........... backtrace: [<ffffffff81a3097a>] kmalloc_trace+0x2a/0x60 [<ffffffff82f049fc>] vxlan_vnigroup_init+0x4c/0x160 [<ffffffff82ecd69e>] vxlan_init+0x1ae/0x280 [<ffffffff836858ca>] register_netdevice+0x57a/0x16d0 [<ffffffff82ef67b7>] __vxlan_dev_create+0x7c7/0xa50 [<ffffffff82ef6ce6>] vxlan_newlink+0xd6/0x130 [<ffffffff836d02ab>] __rtnl_newlink+0x112b/0x18a0 [<ffffffff836d0a8c>] rtnl_newlink+0x6c/0xa0 [<ffffffff836c0ddf>] rtnetlink_rcv_msg+0x43f/0xd40 [<ffffffff83908ce0>] netlink_rcv_skb+0x170/0x440 [<ffffffff839066af>] netlink_unicast+0x53f/0x810 [<ffffffff839072d8>] netlink_sendmsg+0x958/0xe70 [<ffffffff835c319f>] ____sys_sendmsg+0x78f/0xa90 [<ffffffff835cd6da>] ___sys_sendmsg+0x13a/0x1e0 [<ffffffff835cd94c>] __sys_sendmsg+0x11c/0x1f0 [<ffffffff8424da78>] do_syscall_64+0x38/0x80 unreferenced object 0xffff88810e76d5f8 (size 192): comm "ip", pid 330, jiffies 4295010045 (age 66.016s) hex dump (first 32 bytes): 04 00 00 00 00 00 00 00 db e1 4f e7 00 00 00 00 ..........O..... 08 d6 76 0e 81 88 ff ff 08 d6 76 0e 81 88 ff ff ..v.......v..... backtrace: [<ffffffff81a3162e>] __kmalloc_node+0x4e/0x90 [<ffffffff81a0e166>] kvmalloc_node+0xa6/0x1f0 [<ffffffff8276e1a3>] bucket_table_alloc.isra.0+0x83/0x460 [<ffffffff8276f18b>] rhashtable_init+0x43b/0x7c0 [<ffffffff82f04a1c>] vxlan_vnigroup_init+0x6c/0x160 [<ffffffff82ecd69e>] vxlan_init+0x1ae/0x280 [<ffffffff836858ca>] register_netdevice+0x57a/0x16d0 [<ffffffff82ef67b7>] __vxlan_dev_create+0x7c7/0xa50 [<ffffffff82ef6ce6>] vxlan_newlink+0xd6/0x130 [<ffffffff836d02ab>] __rtnl_newlink+0x112b/0x18a0 [<ffffffff836d0a8c>] rtnl_newlink+0x6c/0xa0 [<ffffffff836c0ddf>] rtnetlink_rcv_msg+0x43f/0xd40 [<ffffffff83908ce0>] netlink_rcv_skb+0x170/0x440 [<ffffffff839066af>] netlink_unicast+0x53f/0x810 [<ffffffff839072d8>] netlink_sendmsg+0x958/0xe70 [<ffffffff835c319f>] ____sys_sendmsg+0x78f/0xa90
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06bf62944144a92d83dd14fd1378d2a288259561Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5896f55810680391a32652ca2b91245a05c11e22Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75c1ab900f7cf0485f0be1607c79c55f51faaa90Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.2
linux linux_kernel 6.2
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DED16365-2AE7-4932-8E1F-E3AF25424531",
              "versionEndExcluding": "6.0.19",
              "versionStartIncluding": "5.18",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8C1E7766-4310-43F9-BAC4-3763A36C043A",
              "versionEndExcluding": "6.1.5",
              "versionStartIncluding": "6.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: Fix memory leaks in error path\n\nThe memory allocated by vxlan_vnigroup_init() is not freed in the error\npath, leading to memory leaks [1]. Fix by calling\nvxlan_vnigroup_uninit() in the error path.\n\nThe leaks can be reproduced by annotating gro_cells_init() with\nALLOW_ERROR_INJECTION() and then running:\n\n # echo \"100\" \u003e /sys/kernel/debug/fail_function/probability\n # echo \"1\" \u003e /sys/kernel/debug/fail_function/times\n # echo \"gro_cells_init\" \u003e /sys/kernel/debug/fail_function/inject\n # printf %#x -12 \u003e /sys/kernel/debug/fail_function/gro_cells_init/retval\n # ip link add name vxlan0 type vxlan dstport 4789 external vnifilter\n RTNETLINK answers: Cannot allocate memory\n\n[1]\nunreferenced object 0xffff88810db84a00 (size 512):\n  comm \"ip\", pid 330, jiffies 4295010045 (age 66.016s)\n  hex dump (first 32 bytes):\n    f8 d5 76 0e 81 88 ff ff 01 00 00 00 00 00 00 02  ..v.............\n    03 00 04 00 48 00 00 00 00 00 00 01 04 00 01 00  ....H...........\n  backtrace:\n    [\u003cffffffff81a3097a\u003e] kmalloc_trace+0x2a/0x60\n    [\u003cffffffff82f049fc\u003e] vxlan_vnigroup_init+0x4c/0x160\n    [\u003cffffffff82ecd69e\u003e] vxlan_init+0x1ae/0x280\n    [\u003cffffffff836858ca\u003e] register_netdevice+0x57a/0x16d0\n    [\u003cffffffff82ef67b7\u003e] __vxlan_dev_create+0x7c7/0xa50\n    [\u003cffffffff82ef6ce6\u003e] vxlan_newlink+0xd6/0x130\n    [\u003cffffffff836d02ab\u003e] __rtnl_newlink+0x112b/0x18a0\n    [\u003cffffffff836d0a8c\u003e] rtnl_newlink+0x6c/0xa0\n    [\u003cffffffff836c0ddf\u003e] rtnetlink_rcv_msg+0x43f/0xd40\n    [\u003cffffffff83908ce0\u003e] netlink_rcv_skb+0x170/0x440\n    [\u003cffffffff839066af\u003e] netlink_unicast+0x53f/0x810\n    [\u003cffffffff839072d8\u003e] netlink_sendmsg+0x958/0xe70\n    [\u003cffffffff835c319f\u003e] ____sys_sendmsg+0x78f/0xa90\n    [\u003cffffffff835cd6da\u003e] ___sys_sendmsg+0x13a/0x1e0\n    [\u003cffffffff835cd94c\u003e] __sys_sendmsg+0x11c/0x1f0\n    [\u003cffffffff8424da78\u003e] do_syscall_64+0x38/0x80\nunreferenced object 0xffff88810e76d5f8 (size 192):\n  comm \"ip\", pid 330, jiffies 4295010045 (age 66.016s)\n  hex dump (first 32 bytes):\n    04 00 00 00 00 00 00 00 db e1 4f e7 00 00 00 00  ..........O.....\n    08 d6 76 0e 81 88 ff ff 08 d6 76 0e 81 88 ff ff  ..v.......v.....\n  backtrace:\n    [\u003cffffffff81a3162e\u003e] __kmalloc_node+0x4e/0x90\n    [\u003cffffffff81a0e166\u003e] kvmalloc_node+0xa6/0x1f0\n    [\u003cffffffff8276e1a3\u003e] bucket_table_alloc.isra.0+0x83/0x460\n    [\u003cffffffff8276f18b\u003e] rhashtable_init+0x43b/0x7c0\n    [\u003cffffffff82f04a1c\u003e] vxlan_vnigroup_init+0x6c/0x160\n    [\u003cffffffff82ecd69e\u003e] vxlan_init+0x1ae/0x280\n    [\u003cffffffff836858ca\u003e] register_netdevice+0x57a/0x16d0\n    [\u003cffffffff82ef67b7\u003e] __vxlan_dev_create+0x7c7/0xa50\n    [\u003cffffffff82ef6ce6\u003e] vxlan_newlink+0xd6/0x130\n    [\u003cffffffff836d02ab\u003e] __rtnl_newlink+0x112b/0x18a0\n    [\u003cffffffff836d0a8c\u003e] rtnl_newlink+0x6c/0xa0\n    [\u003cffffffff836c0ddf\u003e] rtnetlink_rcv_msg+0x43f/0xd40\n    [\u003cffffffff83908ce0\u003e] netlink_rcv_skb+0x170/0x440\n    [\u003cffffffff839066af\u003e] netlink_unicast+0x53f/0x810\n    [\u003cffffffff839072d8\u003e] netlink_sendmsg+0x958/0xe70\n    [\u003cffffffff835c319f\u003e] ____sys_sendmsg+0x78f/0xa90"
    }
  ],
  "id": "CVE-2023-53190",
  "lastModified": "2025-12-02T02:42:50.530",
  "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"
      }
    ]
  },
  "published": "2025-09-15T14:15:41.277",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/06bf62944144a92d83dd14fd1378d2a288259561"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5896f55810680391a32652ca2b91245a05c11e22"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/75c1ab900f7cf0485f0be1607c79c55f51faaa90"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • 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.
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