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CVE-2022-50126 (GCVE-0-2022-50126)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:02 – Updated: 2026-05-11 19:13
VLAI
Title
jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted
Summary
In the Linux kernel, the following vulnerability has been resolved: jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted Following process will fail assertion 'jh->b_frozen_data == NULL' in jbd2_journal_dirty_metadata(): jbd2_journal_commit_transaction unlink(dir/a) jh->b_transaction = trans1 jh->b_jlist = BJ_Metadata journal->j_running_transaction = NULL trans1->t_state = T_COMMIT unlink(dir/b) handle->h_trans = trans2 do_get_write_access jh->b_modified = 0 jh->b_frozen_data = frozen_buffer jh->b_next_transaction = trans2 jbd2_journal_dirty_metadata is_handle_aborted is_journal_aborted // return false --> jbd2 abort <-- while (commit_transaction->t_buffers) if (is_journal_aborted) jbd2_journal_refile_buffer __jbd2_journal_refile_buffer WRITE_ONCE(jh->b_transaction, jh->b_next_transaction) WRITE_ONCE(jh->b_next_transaction, NULL) __jbd2_journal_file_buffer(jh, BJ_Reserved) J_ASSERT_JH(jh, jh->b_frozen_data == NULL) // assertion failure ! The reproducer (See detail in [Link]) reports: ------------[ cut here ]------------ kernel BUG at fs/jbd2/transaction.c:1629! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 2 PID: 584 Comm: unlink Tainted: G W 5.19.0-rc6-00115-g4a57a8400075-dirty #697 RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470 RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202 Call Trace: <TASK> __ext4_handle_dirty_metadata+0xa0/0x290 ext4_handle_dirty_dirblock+0x10c/0x1d0 ext4_delete_entry+0x104/0x200 __ext4_unlink+0x22b/0x360 ext4_unlink+0x275/0x390 vfs_unlink+0x20b/0x4c0 do_unlinkat+0x42f/0x4c0 __x64_sys_unlink+0x37/0x50 do_syscall_64+0x35/0x80 After journal aborting, __jbd2_journal_refile_buffer() is executed with holding @jh->b_state_lock, we can fix it by moving 'is_handle_aborted()' into the area protected by @jh->b_state_lock.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 470decc613ab2048b619a01028072d932d9086ee , < 0f61c6dc4b714be9d79cf0782ca02ba01c1b7ac3 (git)
Affected: 470decc613ab2048b619a01028072d932d9086ee , < 6073389db83b903678a0920554fa19f5bdc51c48 (git)
Affected: 470decc613ab2048b619a01028072d932d9086ee , < fa5b65d39332fef7a11ae99cb1f0696012a61527 (git)
Affected: 470decc613ab2048b619a01028072d932d9086ee , < f7161d0da975adc234161cd0641d0e484f5ce375 (git)
Affected: 470decc613ab2048b619a01028072d932d9086ee , < e62f79827784f56499a50ea2e893c98317b5407b (git)
Affected: 470decc613ab2048b619a01028072d932d9086ee , < 731c1662d838fe954c6759e3ee43229b0d928fe4 (git)
Affected: 470decc613ab2048b619a01028072d932d9086ee , < ddd896792e1718cb84c96f3e618270589b6886dc (git)
Affected: 470decc613ab2048b619a01028072d932d9086ee , < 4a734f0869f970b8a9b65062ea40b09a5da9dba8 (git)
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Linux Linux Affected: 2.6.19
Unaffected: 0 , < 2.6.19 (semver)
Unaffected: 4.14.291 , ≤ 4.14.* (semver)
Unaffected: 4.19.256 , ≤ 4.19.* (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.137 , ≤ 5.10.* (semver)
Unaffected: 5.15.61 , ≤ 5.15.* (semver)
Unaffected: 5.18.18 , ≤ 5.18.* (semver)
Unaffected: 5.19.2 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: fix assertion \u0027jh-\u003eb_frozen_data == NULL\u0027 failure when journal aborted\n\nFollowing process will fail assertion \u0027jh-\u003eb_frozen_data == NULL\u0027 in\njbd2_journal_dirty_metadata():\n\n                   jbd2_journal_commit_transaction\nunlink(dir/a)\n jh-\u003eb_transaction = trans1\n jh-\u003eb_jlist = BJ_Metadata\n                    journal-\u003ej_running_transaction = NULL\n                    trans1-\u003et_state = T_COMMIT\nunlink(dir/b)\n handle-\u003eh_trans = trans2\n do_get_write_access\n  jh-\u003eb_modified = 0\n  jh-\u003eb_frozen_data = frozen_buffer\n  jh-\u003eb_next_transaction = trans2\n jbd2_journal_dirty_metadata\n  is_handle_aborted\n   is_journal_aborted // return false\n\n           --\u003e jbd2 abort \u003c--\n\n                     while (commit_transaction-\u003et_buffers)\n                      if (is_journal_aborted)\n                       jbd2_journal_refile_buffer\n                        __jbd2_journal_refile_buffer\n                         WRITE_ONCE(jh-\u003eb_transaction,\n\t\t\t\t\t\tjh-\u003eb_next_transaction)\n                         WRITE_ONCE(jh-\u003eb_next_transaction, NULL)\n                         __jbd2_journal_file_buffer(jh, BJ_Reserved)\n        J_ASSERT_JH(jh, jh-\u003eb_frozen_data == NULL) // assertion failure !\n\nThe reproducer (See detail in [Link]) reports:\n ------------[ cut here ]------------\n kernel BUG at fs/jbd2/transaction.c:1629!\n invalid opcode: 0000 [#1] PREEMPT SMP\n CPU: 2 PID: 584 Comm: unlink Tainted: G        W\n 5.19.0-rc6-00115-g4a57a8400075-dirty #697\n RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470\n RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202\n Call Trace:\n  \u003cTASK\u003e\n  __ext4_handle_dirty_metadata+0xa0/0x290\n  ext4_handle_dirty_dirblock+0x10c/0x1d0\n  ext4_delete_entry+0x104/0x200\n  __ext4_unlink+0x22b/0x360\n  ext4_unlink+0x275/0x390\n  vfs_unlink+0x20b/0x4c0\n  do_unlinkat+0x42f/0x4c0\n  __x64_sys_unlink+0x37/0x50\n  do_syscall_64+0x35/0x80\n\nAfter journal aborting, __jbd2_journal_refile_buffer() is executed with\nholding @jh-\u003eb_state_lock, we can fix it by moving \u0027is_handle_aborted()\u0027\ninto the area protected by @jh-\u003eb_state_lock."
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                    "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.19:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "DFFB2843-A867-48EC-97D7-B106C7BBAED0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.19:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "3CD3FE23-1A10-47E6-AD7E-D67F1BE3C5E2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.19:rc6:*:*:*:*:*:*",
                    "matchCriteriaId": "9F39FC76-7D77-4064-94D3-A16C436FA8D1",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: fix assertion \u0027jh-\u003eb_frozen_data == NULL\u0027 failure when journal aborted\n\nFollowing process will fail assertion \u0027jh-\u003eb_frozen_data == NULL\u0027 in\njbd2_journal_dirty_metadata():\n\n                   jbd2_journal_commit_transaction\nunlink(dir/a)\n jh-\u003eb_transaction = trans1\n jh-\u003eb_jlist = BJ_Metadata\n                    journal-\u003ej_running_transaction = NULL\n                    trans1-\u003et_state = T_COMMIT\nunlink(dir/b)\n handle-\u003eh_trans = trans2\n do_get_write_access\n  jh-\u003eb_modified = 0\n  jh-\u003eb_frozen_data = frozen_buffer\n  jh-\u003eb_next_transaction = trans2\n jbd2_journal_dirty_metadata\n  is_handle_aborted\n   is_journal_aborted // return false\n\n           --\u003e jbd2 abort \u003c--\n\n                     while (commit_transaction-\u003et_buffers)\n                      if (is_journal_aborted)\n                       jbd2_journal_refile_buffer\n                        __jbd2_journal_refile_buffer\n                         WRITE_ONCE(jh-\u003eb_transaction,\n\t\t\t\t\t\tjh-\u003eb_next_transaction)\n                         WRITE_ONCE(jh-\u003eb_next_transaction, NULL)\n                         __jbd2_journal_file_buffer(jh, BJ_Reserved)\n        J_ASSERT_JH(jh, jh-\u003eb_frozen_data == NULL) // assertion failure !\n\nThe reproducer (See detail in [Link]) reports:\n ------------[ cut here ]------------\n kernel BUG at fs/jbd2/transaction.c:1629!\n invalid opcode: 0000 [#1] PREEMPT SMP\n CPU: 2 PID: 584 Comm: unlink Tainted: G        W\n 5.19.0-rc6-00115-g4a57a8400075-dirty #697\n RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470\n RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202\n Call Trace:\n  \u003cTASK\u003e\n  __ext4_handle_dirty_metadata+0xa0/0x290\n  ext4_handle_dirty_dirblock+0x10c/0x1d0\n  ext4_delete_entry+0x104/0x200\n  __ext4_unlink+0x22b/0x360\n  ext4_unlink+0x275/0x390\n  vfs_unlink+0x20b/0x4c0\n  do_unlinkat+0x42f/0x4c0\n  __x64_sys_unlink+0x37/0x50\n  do_syscall_64+0x35/0x80\n\nAfter journal aborting, __jbd2_journal_refile_buffer() is executed with\nholding @jh-\u003eb_state_lock, we can fix it by moving \u0027is_handle_aborted()\u0027\ninto the area protected by @jh-\u003eb_state_lock."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jbd2: se corrige el error de aserci\u00f3n \u0027jh-\u0026gt;b_frozen_data == NULL\u0027 cuando se aborta el diario El siguiente proceso fallar\u00e1 la aserci\u00f3n \u0027jh-\u0026gt;b_frozen_data == NULL\u0027 en jbd2_journal_dirty_metadata(): jbd2_journal_commit_transaction unlink(dir/a) jh-\u0026gt;b_transaction = trans1 jh-\u0026gt;b_jlist = BJ_Metadata journal-\u0026gt;j_running_transaction = NULL trans1-\u0026gt;t_state = T_COMMIT unlink(dir/b) handle-\u0026gt;h_trans = trans2 do_get_write_access jh-\u0026gt;b_modified = 0 jh-\u0026gt;b_frozen_data = frozen_buffer jh-\u0026gt;b_next_transaction = trans2 jbd2_journal_dirty_metadata is_handle_aborted is_journal_aborted // devuelve falso --\u0026gt; jbd2 abort \u0026lt;-- while (commit_transaction-\u0026gt;t_buffers) if (is_journal_aborted) jbd2_journal_refile_buffer __jbd2_journal_refile_buffer WRITE_ONCE(jh-\u0026gt;b_transaction, jh-\u0026gt;b_next_transaction) WRITE_ONCE(jh-\u0026gt;b_next_transaction, NULL) __jbd2_journal_file_buffer(jh, BJ_Reserved) J_ASSERT_JH(jh, jh-\u0026gt;b_frozen_data == NULL) // \u00a1Fallo de aserci\u00f3n! El reproductor (ver detalles en [Enlace]) informa: ------------[ cortar aqu\u00ed ]------------ \u00a1ERROR del kernel en fs/jbd2/transaction.c:1629! c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP CPU: 2 PID: 584 Comm: desvincular Contaminado: GW 5.19.0-rc6-00115-g4a57a8400075-dirty #697 RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470 RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202 Rastreo de llamadas:  __ext4_handle_dirty_metadata+0xa0/0x290 ext4_handle_dirty_dirblock+0x10c/0x1d0 ext4_delete_entry+0x104/0x200 __ext4_unlink+0x22b/0x360 ext4_unlink+0x275/0x390 vfs_unlink+0x20b/0x4c0 do_unlinkat+0x42f/0x4c0 __x64_sys_unlink+0x37/0x50 do_syscall_64+0x35/0x80 Despu\u00e9s de abortar el diario, se ejecuta __jbd2_journal_refile_buffer() manteniendo presionado @jh-\u0026gt;b_state_lock. Podemos solucionarlo moviendo \u0027is_handle_aborted()\u0027 al \u00e1rea protegida por @jh-\u0026gt;b_state_lock."
          }
        ],
        "id": "CVE-2022-50126",
        "lastModified": "2026-06-17T05:22:48.843",
        "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": "2025-06-18T11:15:42.360",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0f61c6dc4b714be9d79cf0782ca02ba01c1b7ac3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4a734f0869f970b8a9b65062ea40b09a5da9dba8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6073389db83b903678a0920554fa19f5bdc51c48"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/731c1662d838fe954c6759e3ee43229b0d928fe4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ddd896792e1718cb84c96f3e618270589b6886dc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e62f79827784f56499a50ea2e893c98317b5407b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f7161d0da975adc234161cd0641d0e484f5ce375"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fa5b65d39332fef7a11ae99cb1f0696012a61527"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-617"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:39:50+00:00",
      "cve": "CVE-2022-50126",
      "id": "CVE-2022-50126",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "321",
      "product_status:known_affected": "80",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: jbd2: fix assertion \u0027jh-\u003eb_frozen_data == NULL\u0027 failure when journal aborted",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50126.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:26:16Z",
      "cve": "CVE-2022-50126",
      "id": "CVE-2022-50126",
      "initial_release_date": "2025-06-19T03:41:01Z",
      "product_status:known_affected": "497",
      "product_status:known_not_affected": "192",
      "product_status:recommended": "357",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50126",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50126.json",
      "version": "55"
    }
  }
}



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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

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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.


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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.