Vulnerability-Lookup

FKIE_CVE-2025-68337

Vulnerability from fkie_nvd - Published: 2025-12-22 17:16 - Updated: 2026-10-15 02:18

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: jbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted There's issue when file system corrupted: ------------[ cut here ]------------ kernel BUG at fs/jbd2/transaction.c:1289! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 5 UID: 0 PID: 2031 Comm: mkdir Not tainted 6.18.0-rc1-next RIP: 0010:jbd2_journal_get_create_access+0x3b6/0x4d0 RSP: 0018:ffff888117aafa30 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff88811a86b000 RCX: ffffffff89a63534 RDX: 1ffff110200ec602 RSI: 0000000000000004 RDI: ffff888100763010 RBP: ffff888100763000 R08: 0000000000000001 R09: ffff888100763028 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88812c432000 R14: ffff88812c608000 R15: ffff888120bfc000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f91d6970c99 CR3: 00000001159c4000 CR4: 00000000000006f0 Call Trace: <TASK> __ext4_journal_get_create_access+0x42/0x170 ext4_getblk+0x319/0x6f0 ext4_bread+0x11/0x100 ext4_append+0x1e6/0x4a0 ext4_init_new_dir+0x145/0x1d0 ext4_mkdir+0x326/0x920 vfs_mkdir+0x45c/0x740 do_mkdirat+0x234/0x2f0 __x64_sys_mkdir+0xd6/0x120 do_syscall_64+0x5f/0xfa0 entry_SYSCALL_64_after_hwframe+0x76/0x7e The above issue occurs with us in errors=continue mode when accompanied by storage failures. There have been many inconsistencies in the file system data. In the case of file system data inconsistency, for example, if the block bitmap of a referenced block is not set, it can lead to the situation where a block being committed is allocated and used again. As a result, the following condition will not be satisfied then trigger BUG_ON. Of course, it is entirely possible to construct a problematic image that can trigger this BUG_ON through specific operations. In fact, I have constructed such an image and easily reproduced this issue. Therefore, J_ASSERT() holds true only under ideal conditions, but it may not necessarily be satisfied in exceptional scenarios. Using J_ASSERT() directly in abnormal situations would cause the system to crash, which is clearly not what we want. So here we directly trigger a JBD abort instead of immediately invoking BUG_ON.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3faac6531d4818cd6be45e5bbf32937bbbc795c0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/71bbe06c40fc59b5b15661eca8ff307f4176d7f9
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/986835bf4d11032bba4ab8414d18fce038c61bb4
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a2a7f854d154a3e9232fec80782dad951655f52f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aa1703f3f706ea0867fb1991dcac709c9ec94cfb
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b4f8eabf6d991bd41fabcdf9302c4b3eab590cf4
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bf34c72337e40c4670cceeb79b353356933a254b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ed62fd8c15d41c4127ad16b8219b63124f5962bc
	0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-019113.html
	0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-457936.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/jbd2/transaction.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "71bbe06c40fc59b5b15661eca8ff307f4176d7f9",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            },
            {
              "lessThan": "ed62fd8c15d41c4127ad16b8219b63124f5962bc",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            },
            {
              "lessThan": "3faac6531d4818cd6be45e5bbf32937bbbc795c0",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            },
            {
              "lessThan": "b4f8eabf6d991bd41fabcdf9302c4b3eab590cf4",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            },
            {
              "lessThan": "a2a7f854d154a3e9232fec80782dad951655f52f",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            },
            {
              "lessThan": "bf34c72337e40c4670cceeb79b353356933a254b",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            },
            {
              "lessThan": "aa1703f3f706ea0867fb1991dcac709c9ec94cfb",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            },
            {
              "lessThan": "986835bf4d11032bba4ab8414d18fce038c61bb4",
              "status": "affected",
              "version": "470decc613ab2048b619a01028072d932d9086ee",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/jbd2/transaction.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.19"
            },
            {
              "lessThan": "2.6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.248",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.62",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.7",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.7",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.7",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.7",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.7",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted\n\nThere\u0027s issue when file system corrupted:\n------------[ cut here ]------------\nkernel BUG at fs/jbd2/transaction.c:1289!\nOops: invalid opcode: 0000 [#1] SMP KASAN PTI\nCPU: 5 UID: 0 PID: 2031 Comm: mkdir Not tainted 6.18.0-rc1-next\nRIP: 0010:jbd2_journal_get_create_access+0x3b6/0x4d0\nRSP: 0018:ffff888117aafa30 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: ffff88811a86b000 RCX: ffffffff89a63534\nRDX: 1ffff110200ec602 RSI: 0000000000000004 RDI: ffff888100763010\nRBP: ffff888100763000 R08: 0000000000000001 R09: ffff888100763028\nR10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000\nR13: ffff88812c432000 R14: ffff88812c608000 R15: ffff888120bfc000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f91d6970c99 CR3: 00000001159c4000 CR4: 00000000000006f0\nCall Trace:\n \u003cTASK\u003e\n __ext4_journal_get_create_access+0x42/0x170\n ext4_getblk+0x319/0x6f0\n ext4_bread+0x11/0x100\n ext4_append+0x1e6/0x4a0\n ext4_init_new_dir+0x145/0x1d0\n ext4_mkdir+0x326/0x920\n vfs_mkdir+0x45c/0x740\n do_mkdirat+0x234/0x2f0\n __x64_sys_mkdir+0xd6/0x120\n do_syscall_64+0x5f/0xfa0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThe above issue occurs with us in errors=continue mode when accompanied by\nstorage failures. There have been many inconsistencies in the file system\ndata.\nIn the case of file system data inconsistency, for example, if the block\nbitmap of a referenced block is not set, it can lead to the situation where\na block being committed is allocated and used again. As a result, the\nfollowing condition will not be satisfied then trigger BUG_ON. Of course,\nit is entirely possible to construct a problematic image that can trigger\nthis BUG_ON through specific operations. In fact, I have constructed such\nan image and easily reproduced this issue.\nTherefore, J_ASSERT() holds true only under ideal conditions, but it may\nnot necessarily be satisfied in exceptional scenarios. Using J_ASSERT()\ndirectly in abnormal situations would cause the system to crash, which is\nclearly not what we want. So here we directly trigger a JBD abort instead\nof immediately invoking BUG_ON."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:\n\njbd2: evitar bug_on en jbd2_journal_get_create_access() cuando el sistema de archivos est\u00e1 corrupto\n\nExiste un problema cuando el sistema de archivos est\u00e1 corrupto:\n------------[ cut here ]------------\nkernel BUG at fs/jbd2/transaction.c:1289!\nOops: invalid opcode: 0000 [#1] SMP KASAN PTI\nCPU: 5 UID: 0 PID: 2031 Comm: mkdir Not tainted 6.18.0-rc1-next\nRIP: 0010:jbd2_journal_get_create_access+0x3b6/0x4d0\nRSP: 0018:ffff888117aafa30 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: ffff88811a86b000 RCX: ffffffff89a63534\nRDX: 1ffff110200ec602 RSI: 0000000000000004 RDI: ffff888100763010\nRBP: ffff888100763000 R08: 0000000000000001 R09: ffff888100763028\nR10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000\nR13: ffff88812c432000 R14: ffff88812c608000 R15: ffff888120bfc000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f91d6970c99 CR3: 00000001159c4000 CR4: 00000000000006f0\nCall Trace:\n \u003cTASK\u003e\n __ext4_journal_get_create_access+0x42/0x170\n ext4_getblk+0x319/0x6f0\n ext4_bread+0x11/0x100\n ext4_append+0x1e6/0x4a0\n ext4_init_new_dir+0x145/0x1d0\n ext4_mkdir+0x326/0x920\n vfs_mkdir+0x45c/0x740\n do_mkdirat+0x234/0x2f0\n __x64_sys_mkdir+0xd6/0x120\n do_syscall_64+0x5f/0xfa0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nEl problema anterior nos ocurre en modo errors=continue cuando se acompa\u00f1a de fallos de almacenamiento. Ha habido muchas inconsistencias en los datos del sistema de archivos.\nEn caso de inconsistencia de datos del sistema de archivos, por ejemplo, si el mapa de bits de bloque de un bloque referenciado no est\u00e1 configurado, puede llevar a la situaci\u00f3n en la que un bloque que se est\u00e1 confirmando se asigna y se usa de nuevo. Como resultado, la siguiente condici\u00f3n no se cumplir\u00e1 y luego activar\u00e1 BUG_ON. Por supuesto, es totalmente posible construir una imagen problem\u00e1tica que pueda activar este BUG_ON mediante operaciones espec\u00edficas. De hecho, he construido una imagen as\u00ed y he reproducido f\u00e1cilmente este problema.\nPor lo tanto, J_ASSERT() solo es v\u00e1lido bajo condiciones ideales, pero puede que no se cumpla necesariamente en escenarios excepcionales. Usar J_ASSERT() directamente en situaciones anormales provocar\u00eda que el sistema se bloquee, lo cual claramente no es lo que queremos. As\u00ed que aqu\u00ed activamos directamente una interrupci\u00f3n de JBD en lugar de invocar inmediatamente BUG_ON."
    }
  ],
  "id": "CVE-2025-68337",
  "lastModified": "2026-10-15T02:18:11.753",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-68337",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-16T16:56:17.316148Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-22T17:16:01.463",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3faac6531d4818cd6be45e5bbf32937bbbc795c0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/71bbe06c40fc59b5b15661eca8ff307f4176d7f9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/986835bf4d11032bba4ab8414d18fce038c61bb4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a2a7f854d154a3e9232fec80782dad951655f52f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aa1703f3f706ea0867fb1991dcac709c9ec94cfb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b4f8eabf6d991bd41fabcdf9302c4b3eab590cf4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf34c72337e40c4670cceeb79b353356933a254b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ed62fd8c15d41c4127ad16b8219b63124f5962bc"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

CVE-2025-68337 (GCVE-0-2025-68337)

Vulnerability from cvelistv5 – Published: 2025-12-22 16:14 – Updated: 2026-10-15 01:09

Title

jbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/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 2026-06-16 16:56 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6653 records in the last 180 days details

References

10 references

URL	Tags
https://git.kernel.org/stable/c/71bbe06c40fc59b5b…
https://git.kernel.org/stable/c/ed62fd8c15d41c412…
https://git.kernel.org/stable/c/3faac6531d4818cd6…
https://git.kernel.org/stable/c/b4f8eabf6d991bd41…
https://git.kernel.org/stable/c/a2a7f854d154a3e92…
https://git.kernel.org/stable/c/bf34c72337e40c467…
https://git.kernel.org/stable/c/aa1703f3f706ea086…
https://git.kernel.org/stable/c/986835bf4d11032bb…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

8 products

Vendor	Product	Version
Linux	Linux	Affected: 470decc613ab2048b619a01028072d932d9086ee , < 71bbe06c40fc59b5b15661eca8ff307f4176d7f9 (git) Affected: 470decc613ab2048b619a01028072d932d9086ee , < ed62fd8c15d41c4127ad16b8219b63124f5962bc (git) Affected: 470decc613ab2048b619a01028072d932d9086ee , < 3faac6531d4818cd6be45e5bbf32937bbbc795c0 (git) Affected: 470decc613ab2048b619a01028072d932d9086ee , < b4f8eabf6d991bd41fabcdf9302c4b3eab590cf4 (git) Affected: 470decc613ab2048b619a01028072d932d9086ee , < a2a7f854d154a3e9232fec80782dad951655f52f (git) Affected: 470decc613ab2048b619a01028072d932d9086ee , < bf34c72337e40c4670cceeb79b353356933a254b (git) Affected: 470decc613ab2048b619a01028072d932d9086ee , < aa1703f3f706ea0867fb1991dcac709c9ec94cfb (git) Affected: 470decc613ab2048b619a01028072d932d9086ee , < 986835bf4d11032bba4ab8414d18fce038c61bb4 (git)
Linux	Linux	Affected: 2.6.19 Unaffected: 0 , < 2.6.19 (semver) Unaffected: 5.10.248 , ≤ 5.10.* (semver) Unaffected: 5.15.198 , ≤ 5.15.* (semver) Unaffected: 6.1.160 , ≤ 6.1.* (semver) Unaffected: 6.6.120 , ≤ 6.6.* (semver) Unaffected: 6.12.62 , ≤ 6.12.* (semver) Unaffected: 6.17.12 , ≤ 6.17.* (semver) Unaffected: 6.18.1 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.7 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.7 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.7 , < * (custom)

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted\n\nThere\u0027s issue when file system corrupted:\n------------[ cut here ]------------\nkernel BUG at fs/jbd2/transaction.c:1289!\nOops: invalid opcode: 0000 [#1] SMP KASAN PTI\nCPU: 5 UID: 0 PID: 2031 Comm: mkdir Not tainted 6.18.0-rc1-next\nRIP: 0010:jbd2_journal_get_create_access+0x3b6/0x4d0\nRSP: 0018:ffff888117aafa30 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: ffff88811a86b000 RCX: ffffffff89a63534\nRDX: 1ffff110200ec602 RSI: 0000000000000004 RDI: ffff888100763010\nRBP: ffff888100763000 R08: 0000000000000001 R09: ffff888100763028\nR10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000\nR13: ffff88812c432000 R14: ffff88812c608000 R15: ffff888120bfc000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f91d6970c99 CR3: 00000001159c4000 CR4: 00000000000006f0\nCall Trace:\n \u003cTASK\u003e\n __ext4_journal_get_create_access+0x42/0x170\n ext4_getblk+0x319/0x6f0\n ext4_bread+0x11/0x100\n ext4_append+0x1e6/0x4a0\n ext4_init_new_dir+0x145/0x1d0\n ext4_mkdir+0x326/0x920\n vfs_mkdir+0x45c/0x740\n do_mkdirat+0x234/0x2f0\n __x64_sys_mkdir+0xd6/0x120\n do_syscall_64+0x5f/0xfa0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThe above issue occurs with us in errors=continue mode when accompanied by\nstorage failures. There have been many inconsistencies in the file system\ndata.\nIn the case of file system data inconsistency, for example, if the block\nbitmap of a referenced block is not set, it can lead to the situation where\na block being committed is allocated and used again. As a result, the\nfollowing condition will not be satisfied then trigger BUG_ON. Of course,\nit is entirely possible to construct a problematic image that can trigger\nthis BUG_ON through specific operations. In fact, I have constructed such\nan image and easily reproduced this issue.\nTherefore, J_ASSERT() holds true only under ideal conditions, but it may\nnot necessarily be satisfied in exceptional scenarios. Using J_ASSERT()\ndirectly in abnormal situations would cause the system to crash, which is\nclearly not what we want. So here we directly trigger a JBD abort instead\nof immediately invoking BUG_ON."
        }
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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              "value": "AV:N - A remote client can reach the vulnerable path through a guest-writable ksmbd share or permissive NFS export backed by corrupted ext4; SMB/NFS directory creation ultimately invokes ext4_mkdir().\nAC:L - Once the bitmap/journal inconsistency exists, directory creation deterministically reaches the assertion, and the commit author reports easily reproducing it with a constructed image.\nPR:N - A guest-writable SMB share or permissive NFS export can require no credentials, while the underlying mkdir path requires only directory write and search permission without capabilities.\nUI:N - The attacker directly issues the directory-creation request against an already-mounted filesystem, requiring no victim action during exploitation.\nS:U - The failure remains within the host kernel and filesystem security authority and does not cross a virtualization or sandbox boundary.\nC:N - The failed JBD2 invariant immediately executes BUG_ON without exposing memory or providing an out-of-bounds read primitive.\nI:N - The defect is an assertion-triggered crash, not memory corruption, and it provides no attacker-controlled write or code-execution primitive.\nA:H - BUG_ON raises an invalid-opcode kernel oops and can panic or reboot the system; the request can be repeated while the corrupted filesystem state persists."
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    "dateUpdated": "2026-10-15T01:09:52.527Z",
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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

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.

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