Vulnerability-Lookup

GHSA-JWJ4-6VQ9-QVX8

Vulnerability from github – Published: 2024-05-17 15:31 – Updated: 2025-09-24 21:30

Details

In the Linux kernel, the following vulnerability has been resolved:

bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit

bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut. It should be freed by kvfree not kfree. Or umount will triger:

[ 406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008 [ 406.830676 ] #PF: supervisor read access in kernel mode [ 406.831643 ] #PF: error_code(0x0000) - not-present page [ 406.832487 ] PGD 0 P4D 0 [ 406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI [ 406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G OE 6.7.0-rc7-custom+ #90 [ 406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 [ 406.835796 ] RIP: 0010:kfree+0x62/0x140 [ 406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6 [ 406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286 [ 406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4 [ 406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000 [ 406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001 [ 406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80 [ 406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000 [ 406.840451 ] FS: 00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000 [ 406.840851 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0 [ 406.841464 ] Call Trace: [ 406.841583 ] [ 406.841682 ] ? __die+0x1f/0x70 [ 406.841828 ] ? page_fault_oops+0x159/0x470 [ 406.842014 ] ? fixup_exception+0x22/0x310 [ 406.842198 ] ? exc_page_fault+0x1ed/0x200 [ 406.842382 ] ? asm_exc_page_fault+0x22/0x30 [ 406.842574 ] ? bch2_fs_release+0x54/0x280 [bcachefs] [ 406.842842 ] ? kfree+0x62/0x140 [ 406.842988 ] ? kfree+0x104/0x140 [ 406.843138 ] bch2_fs_release+0x54/0x280 [bcachefs] [ 406.843390 ] kobject_put+0xb7/0x170 [ 406.843552 ] deactivate_locked_super+0x2f/0xa0 [ 406.843756 ] cleanup_mnt+0xba/0x150 [ 406.843917 ] task_work_run+0x59/0xa0 [ 406.844083 ] exit_to_user_mode_prepare+0x197/0x1a0 [ 406.844302 ] syscall_exit_to_user_mode+0x16/0x40 [ 406.844510 ] do_syscall_64+0x4e/0xf0 [ 406.844675 ] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 406.844907 ] RIP: 0033:0x7f0a2664e4fb

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-35832"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-763"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-17T14:15:19Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit\n\nbch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.\nIt should be freed by kvfree not kfree.\nOr umount will triger:\n\n[  406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008\n[  406.830676 ] #PF: supervisor read access in kernel mode\n[  406.831643 ] #PF: error_code(0x0000) - not-present page\n[  406.832487 ] PGD 0 P4D 0\n[  406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI\n[  406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G           OE      6.7.0-rc7-custom+ #90\n[  406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014\n[  406.835796 ] RIP: 0010:kfree+0x62/0x140\n[  406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 \u003c48\u003e 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6\n[  406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286\n[  406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4\n[  406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000\n[  406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001\n[  406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80\n[  406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000\n[  406.840451 ] FS:  00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000\n[  406.840851 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0\n[  406.841464 ] Call Trace:\n[  406.841583 ]  \u003cTASK\u003e\n[  406.841682 ]  ? __die+0x1f/0x70\n[  406.841828 ]  ? page_fault_oops+0x159/0x470\n[  406.842014 ]  ? fixup_exception+0x22/0x310\n[  406.842198 ]  ? exc_page_fault+0x1ed/0x200\n[  406.842382 ]  ? asm_exc_page_fault+0x22/0x30\n[  406.842574 ]  ? bch2_fs_release+0x54/0x280 [bcachefs]\n[  406.842842 ]  ? kfree+0x62/0x140\n[  406.842988 ]  ? kfree+0x104/0x140\n[  406.843138 ]  bch2_fs_release+0x54/0x280 [bcachefs]\n[  406.843390 ]  kobject_put+0xb7/0x170\n[  406.843552 ]  deactivate_locked_super+0x2f/0xa0\n[  406.843756 ]  cleanup_mnt+0xba/0x150\n[  406.843917 ]  task_work_run+0x59/0xa0\n[  406.844083 ]  exit_to_user_mode_prepare+0x197/0x1a0\n[  406.844302 ]  syscall_exit_to_user_mode+0x16/0x40\n[  406.844510 ]  do_syscall_64+0x4e/0xf0\n[  406.844675 ]  entry_SYSCALL_64_after_hwframe+0x6e/0x76\n[  406.844907 ] RIP: 0033:0x7f0a2664e4fb",
  "id": "GHSA-jwj4-6vq9-qvx8",
  "modified": "2025-09-24T21:30:29Z",
  "published": "2024-05-17T15:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35832"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-35832 (GCVE-0-2024-35832)

Vulnerability from cvelistv5 – Published: 2024-05-17 13:48 – Updated: 2026-05-11 20:11

Title

bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit

Summary

In the Linux kernel, the following vulnerability has been resolved: bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut. It should be freed by kvfree not kfree. Or umount will triger: [ 406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008 [ 406.830676 ] #PF: supervisor read access in kernel mode [ 406.831643 ] #PF: error_code(0x0000) - not-present page [ 406.832487 ] PGD 0 P4D 0 [ 406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI [ 406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G OE 6.7.0-rc7-custom+ #90 [ 406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 [ 406.835796 ] RIP: 0010:kfree+0x62/0x140 [ 406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6 [ 406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286 [ 406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4 [ 406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000 [ 406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001 [ 406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80 [ 406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000 [ 406.840451 ] FS: 00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000 [ 406.840851 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0 [ 406.841464 ] Call Trace: [ 406.841583 ] <TASK> [ 406.841682 ] ? __die+0x1f/0x70 [ 406.841828 ] ? page_fault_oops+0x159/0x470 [ 406.842014 ] ? fixup_exception+0x22/0x310 [ 406.842198 ] ? exc_page_fault+0x1ed/0x200 [ 406.842382 ] ? asm_exc_page_fault+0x22/0x30 [ 406.842574 ] ? bch2_fs_release+0x54/0x280 [bcachefs] [ 406.842842 ] ? kfree+0x62/0x140 [ 406.842988 ] ? kfree+0x104/0x140 [ 406.843138 ] bch2_fs_release+0x54/0x280 [bcachefs] [ 406.843390 ] kobject_put+0xb7/0x170 [ 406.843552 ] deactivate_locked_super+0x2f/0xa0 [ 406.843756 ] cleanup_mnt+0xba/0x150 [ 406.843917 ] task_work_run+0x59/0xa0 [ 406.844083 ] exit_to_user_mode_prepare+0x197/0x1a0 [ 406.844302 ] syscall_exit_to_user_mode+0x16/0x40 [ 406.844510 ] do_syscall_64+0x4e/0xf0 [ 406.844675 ] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 406.844907 ] RIP: 0033:0x7f0a2664e4fb

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:42 UTC

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/56590678791119b9a…
https://git.kernel.org/stable/c/369acf97d6fd5da62…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a , < 56590678791119b9a655202e49898edfb9307271 (git) Affected: 1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a , < 369acf97d6fd5da620d053d0f1878ffe32eff555 (git)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.7.5 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:21:47.614Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-35832",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:42:15.715605Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:19.899Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/bcachefs/snapshot.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "56590678791119b9a655202e49898edfb9307271",
              "status": "affected",
              "version": "1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a",
              "versionType": "git"
            },
            {
              "lessThan": "369acf97d6fd5da620d053d0f1878ffe32eff555",
              "status": "affected",
              "version": "1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/bcachefs/snapshot.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.5",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit\n\nbch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.\nIt should be freed by kvfree not kfree.\nOr umount will triger:\n\n[  406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008\n[  406.830676 ] #PF: supervisor read access in kernel mode\n[  406.831643 ] #PF: error_code(0x0000) - not-present page\n[  406.832487 ] PGD 0 P4D 0\n[  406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI\n[  406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G           OE      6.7.0-rc7-custom+ #90\n[  406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014\n[  406.835796 ] RIP: 0010:kfree+0x62/0x140\n[  406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 \u003c48\u003e 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6\n[  406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286\n[  406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4\n[  406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000\n[  406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001\n[  406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80\n[  406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000\n[  406.840451 ] FS:  00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000\n[  406.840851 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0\n[  406.841464 ] Call Trace:\n[  406.841583 ]  \u003cTASK\u003e\n[  406.841682 ]  ? __die+0x1f/0x70\n[  406.841828 ]  ? page_fault_oops+0x159/0x470\n[  406.842014 ]  ? fixup_exception+0x22/0x310\n[  406.842198 ]  ? exc_page_fault+0x1ed/0x200\n[  406.842382 ]  ? asm_exc_page_fault+0x22/0x30\n[  406.842574 ]  ? bch2_fs_release+0x54/0x280 [bcachefs]\n[  406.842842 ]  ? kfree+0x62/0x140\n[  406.842988 ]  ? kfree+0x104/0x140\n[  406.843138 ]  bch2_fs_release+0x54/0x280 [bcachefs]\n[  406.843390 ]  kobject_put+0xb7/0x170\n[  406.843552 ]  deactivate_locked_super+0x2f/0xa0\n[  406.843756 ]  cleanup_mnt+0xba/0x150\n[  406.843917 ]  task_work_run+0x59/0xa0\n[  406.844083 ]  exit_to_user_mode_prepare+0x197/0x1a0\n[  406.844302 ]  syscall_exit_to_user_mode+0x16/0x40\n[  406.844510 ]  do_syscall_64+0x4e/0xf0\n[  406.844675 ]  entry_SYSCALL_64_after_hwframe+0x6e/0x76\n[  406.844907 ] RIP: 0033:0x7f0a2664e4fb"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:11:51.836Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271"
        },
        {
          "url": "https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555"
        }
      ],
      "title": "bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-35832",
    "datePublished": "2024-05-17T13:48:20.877Z",
    "dateReserved": "2024-05-17T12:19:12.348Z",
    "dateUpdated": "2026-05-11T20:11:51.836Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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