Vulnerability-Lookup

GHSA-8FQV-XW49-GH95

Vulnerability from github – Published: 2022-05-24 19:02 – Updated: 2022-06-29 00:00

Details

Mikrotik RouterOs before 6.47 (stable tree) suffers from a memory corruption vulnerability in the /ram/pckg/wireless/nova/bin/wireless process. An authenticated remote attacker can cause a Denial of Service due via a crafted packet.

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-20265"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-05-11T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Mikrotik RouterOs before 6.47 (stable tree) suffers from a memory corruption vulnerability in the /ram/pckg/wireless/nova/bin/wireless process. An authenticated remote attacker can cause a Denial of Service due via a crafted packet.",
  "id": "GHSA-8fqv-xw49-gh95",
  "modified": "2022-06-29T00:00:30Z",
  "published": "2022-05-24T19:02:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-20265"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/fulldisclosure/2021/May/11"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2021/May/12"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8HCV-X26H-MCGP

Vulnerability from github – Published: 2026-08-06 21:19 – Updated: 2026-08-06 21:19

Summary

node-re2: String.prototype.replace(re2, template) aborts the Node process (uncatchable ToLocalChecked on empty MaybeLocal) when the result exceeds V8's max string length

Details

Description

WrappedRE2::Replace builds the replacement result and hands it to V8 with .ToLocalChecked() without checking for the empty MaybeLocal that V8 returns when the string/buffer exceeds its maximum length:

lib/replace.cc (v1.24.1):

// L553 — Buffer return path
info.GetReturnValue().Set(Nan::CopyBuffer(result.data(), result.size()).ToLocalChecked());
// L556 — String return path
info.GetReturnValue().Set(Nan::New(result).ToLocalChecked());

When a global replace uses an output-amplifying template — $' (text after the match) or $` (text before the match) — the result grows to O(input²). For an input of ~40,000+ identical single-char matches the result exceeds V8's String::kMaxLength (~536,870,888 chars on 64-bit). Nan::New(result) then returns an empty MaybeLocal, and the unchecked .ToLocalChecked() calls v8::Utils::ReportApiFailure → FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal → abort() (SIGABRT).

This is an uncatchable crash: it is not a JavaScript exception, so a surrounding try/catch cannot stop it — the entire Node process (or worker) dies.

The built-in regex engine handles the identical case correctly by throwing a catchable RangeError: Invalid string length. node-re2 diverges from that contract and aborts instead.

Proof of concept

npm i re2
node poc.js

const RE2 = require('re2');

// Built-in engine: same case -> CATCHABLE RangeError (correct)
try { 'a'.repeat(50000).replace(/a/g, "$'"); }
catch (e) { console.log('native:', e.constructor.name, e.message); } // RangeError: Invalid string length

// re2: ABORTS the whole process (uncatchable; try/catch does not help)
'a'.repeat(50000).replace(new RE2('a', 'g'), "$'");
// -> FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal   (process exits 134 / SIGABRT)

Observed (Node v24, clean npm i re2 → re2@1.24.1): native branch prints RangeError: Invalid string length; the re2 branch aborts with FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal, stack top WrappedRE2::Replace, process exit code 134.

Threshold matches the mechanism precisely: input of 30,000 chars completes; 40,000 aborts (30000²/2 ≈ 4.5e8 < 5.37e8 max; 40000²/2 ≈ 8e8 > max). $&/constant templates and non-global replaces do not amplify and do not crash.

Impact

A remote, unauthenticated denial of service against any service that runs String.prototype.replace / the re2 [Symbol.replace] path where either the replacement template (containing $' or $`) or the input size is attacker-influenced. Because the failure is a native abort(), it cannot be contained by try/catch or domains — one request takes down the whole process/worker. This is especially impactful for re2's core audience, who adopt it specifically to process untrusted patterns/inputs safely.

Suggested fix

Check the MaybeLocal before ToLocalChecked on both return paths (and the intermediate group-string builds), and throw a catchable RangeError to match the built-in engine:

auto maybe = Nan::New(result);
if (maybe.IsEmpty()) { Nan::ThrowRangeError("Invalid string length"); return; }
info.GetReturnValue().Set(maybe.ToLocalChecked());

(Apply equivalently to the Nan::CopyBuffer(...) buffer path at L553 and to the per-group Nan::New(data, size).ToLocalChecked() sites used by the replacer-function path.)

Resolution

Resolved in re2 1.25.1. WrappedRE2::Replace now checks the returned MaybeLocal on every result path and throws a catchable RangeError: Invalid string length (matching the built-in engine) instead of aborting the process with an uncatchable SIGABRT. No API changes --- upgrade to re2 >= 1.25.1 via a plain npm upgrade to receive the fix.

Severity

6.2 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.25.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "re2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.25.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-71430"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-06T21:19:36Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Description\n\n`WrappedRE2::Replace` builds the replacement result and hands it to V8 with `.ToLocalChecked()` **without checking for the empty `MaybeLocal`** that V8 returns when the string/buffer exceeds its maximum length:\n\n`lib/replace.cc` (v1.24.1):\n```cpp\n// L553 \u2014 Buffer return path\ninfo.GetReturnValue().Set(Nan::CopyBuffer(result.data(), result.size()).ToLocalChecked());\n// L556 \u2014 String return path\ninfo.GetReturnValue().Set(Nan::New(result).ToLocalChecked());\n```\n\nWhen a global replace uses an output-amplifying template \u2014 `$\u0027` (text after the match) or `` $` `` (text before the match) \u2014 the result grows to **O(input\u00b2)**. For an input of ~40,000+ identical single-char matches the result exceeds V8\u0027s `String::kMaxLength` (~536,870,888 chars on 64-bit). `Nan::New(result)` then returns an **empty `MaybeLocal`**, and the unchecked `.ToLocalChecked()` calls `v8::Utils::ReportApiFailure` \u2192 **`FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal`** \u2192 `abort()` (SIGABRT).\n\nThis is an **uncatchable** crash: it is not a JavaScript exception, so a surrounding `try/catch` cannot stop it \u2014 the entire Node process (or worker) dies.\n\n**The built-in regex engine handles the identical case correctly** by throwing a *catchable* `RangeError: Invalid string length`. node-re2 diverges from that contract and aborts instead.\n\n## Proof of concept\n\n```\nnpm i re2\nnode poc.js\n```\n\n```js\nconst RE2 = require(\u0027re2\u0027);\n\n// Built-in engine: same case -\u003e CATCHABLE RangeError (correct)\ntry { \u0027a\u0027.repeat(50000).replace(/a/g, \"$\u0027\"); }\ncatch (e) { console.log(\u0027native:\u0027, e.constructor.name, e.message); } // RangeError: Invalid string length\n\n// re2: ABORTS the whole process (uncatchable; try/catch does not help)\n\u0027a\u0027.repeat(50000).replace(new RE2(\u0027a\u0027, \u0027g\u0027), \"$\u0027\");\n// -\u003e FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal   (process exits 134 / SIGABRT)\n```\n\nObserved (Node v24, clean `npm i re2` \u2192 re2@1.24.1): native branch prints `RangeError: Invalid string length`; the re2 branch aborts with `FATAL ERROR: v8::ToLocalChecked Empty MaybeLocal`, stack top `WrappedRE2::Replace`, process exit code **134**.\n\nThreshold matches the mechanism precisely: input of 30,000 chars completes; 40,000 aborts (30000\u00b2/2 \u2248 4.5e8 \u003c 5.37e8 max; 40000\u00b2/2 \u2248 8e8 \u003e max). `$\u0026`/constant templates and non-global replaces do not amplify and do not crash.\n\n## Impact\n\nA remote, unauthenticated denial of service against any service that runs `String.prototype.replace` / the re2 `[Symbol.replace]` path where either the **replacement template** (containing `$\u0027` or `` $` ``) or the **input size** is attacker-influenced. Because the failure is a native `abort()`, it cannot be contained by `try/catch` or domains \u2014 one request takes down the whole process/worker. This is especially impactful for re2\u0027s core audience, who adopt it specifically to process untrusted patterns/inputs safely.\n\n## Suggested fix\n\nCheck the `MaybeLocal` before `ToLocalChecked` on both return paths (and the intermediate group-string builds), and throw a catchable `RangeError` to match the built-in engine:\n\n```cpp\nauto maybe = Nan::New(result);\nif (maybe.IsEmpty()) { Nan::ThrowRangeError(\"Invalid string length\"); return; }\ninfo.GetReturnValue().Set(maybe.ToLocalChecked());\n```\n\n(Apply equivalently to the `Nan::CopyBuffer(...)` buffer path at L553 and to the per-group `Nan::New(data, size).ToLocalChecked()` sites used by the replacer-function path.)\n\n## Resolution\n\nResolved in `re2` `1.25.1`. `WrappedRE2::Replace` now checks the returned `MaybeLocal` on every result path and throws a catchable `RangeError: Invalid string length` (matching the built-in engine) instead of aborting the process with an uncatchable `SIGABRT`. No API changes --- upgrade to `re2` \u003e= `1.25.1` via a plain `npm upgrade` to receive the fix.",
  "id": "GHSA-8hcv-x26h-mcgp",
  "modified": "2026-08-06T21:19:36Z",
  "published": "2026-08-06T21:19:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/uhop/node-re2/security/advisories/GHSA-8hcv-x26h-mcgp"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/uhop/node-re2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "node-re2: String.prototype.replace(re2, template) aborts the Node process (uncatchable ToLocalChecked on empty MaybeLocal) when the result exceeds V8\u0027s max string length"
}

GHSA-8HHM-54FQ-9WRX

Vulnerability from github – Published: 2026-08-20 00:35 – Updated: 2026-08-20 00:35

Details

BUSMASTER file parser abnormal exit in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

Severity

3.1 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-76926"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-19T23:16:21Z",
    "severity": "LOW"
  },
  "details": "BUSMASTER file parser abnormal exit in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service",
  "id": "GHSA-8hhm-54fq-9wrx",
  "modified": "2026-08-20T00:35:10Z",
  "published": "2026-08-20T00:35:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76926"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21435"
    },
    {
      "type": "WEB",
      "url": "https://www.wireshark.org/security/wnpa-sec-2026-70.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8HPX-Q4CX-GFXW

Vulnerability from github – Published: 2025-01-29 00:31 – Updated: 2025-01-29 15:31

Details

An issue in Open5GS v.2.7.2 allows a remote attacker to cause a denial of service via the ogs_dbi_auth_info function in lib/dbi/subscription.c file.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-57519"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-617",
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-28T23:15:08Z",
    "severity": "HIGH"
  },
  "details": "An issue in Open5GS v.2.7.2 allows a remote attacker to cause a denial of service via the ogs_dbi_auth_info function in lib/dbi/subscription.c file.",
  "id": "GHSA-8hpx-q4cx-gfxw",
  "modified": "2025-01-29T15:31:34Z",
  "published": "2025-01-29T00:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57519"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open5gs/open5gs/issues/3635"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open5gs/open5gs/commit/08b9e7c55f72649ef25b5407e7e4d938f0f16531"
    },
    {
      "type": "WEB",
      "url": "https://github.com/f4rs1ght/vuln-research/tree/main/CVE-2024-57519"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8J48-R5WC-GVR3

Vulnerability from github – Published: 2024-05-14 18:31 – Updated: 2024-05-14 18:31

Details

An unauthenticated user can trigger a fatal assertion in the server while generating ftdc diagnostic metrics due to attempting to build a BSON object that exceeds certain memory sizes. This issue affects MongoDB Server v5.0 versions prior to and including 5.0.16 and MongoDB Server v6.0 versions prior to and including 6.0.5.

Severity

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-3374"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-14T16:17:31Z",
    "severity": "MODERATE"
  },
  "details": "An unauthenticated user can trigger a fatal assertion in the server while generating ftdc diagnostic metrics due to attempting to build a BSON object that exceeds certain memory sizes. This issue affects MongoDB Server v5.0 versions prior to and including 5.0.16 and MongoDB Server v6.0 versions prior to and including 6.0.5.\n",
  "id": "GHSA-8j48-r5wc-gvr3",
  "modified": "2024-05-14T18:31:02Z",
  "published": "2024-05-14T18:31:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-3374"
    },
    {
      "type": "WEB",
      "url": "https://jira.mongodb.org/browse/SERVER-75601"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8J78-7Q6F-P35C

Vulnerability from github – Published: 2022-09-14 00:00 – Updated: 2022-09-19 00:00

Details

LIEF commit 365a16a was discovered to contain a reachable assertion abort via the component BinaryStream.hpp.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-38496"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-13T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "LIEF commit 365a16a was discovered to contain a reachable assertion abort via the component BinaryStream.hpp.",
  "id": "GHSA-8j78-7q6f-p35c",
  "modified": "2022-09-19T00:00:28Z",
  "published": "2022-09-14T00:00:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38496"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lief-project/LIEF/issues/765"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8JG6-MX2M-9733

Vulnerability from github – Published: 2025-12-02 03:31 – Updated: 2025-12-02 15:30

Details

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01717526; Issue ID: MSV-5591.

Severity

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-20792"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-02T03:16:20Z",
    "severity": "MODERATE"
  },
  "details": "In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01717526; Issue ID: MSV-5591.",
  "id": "GHSA-8jg6-mx2m-9733",
  "modified": "2025-12-02T15:30:31Z",
  "published": "2025-12-02T03:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20792"
    },
    {
      "type": "WEB",
      "url": "https://corp.mediatek.com/product-security-bulletin/December-2025"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8JR5-3MRG-HM2V

Vulnerability from github – Published: 2025-12-25 06:30 – Updated: 2025-12-25 06:30

Details

Pexip Infinity before 37.0 has improper input validation in signalling that allows a remote attacker to trigger a software abort via a crafted signalling message, resulting in a denial of service.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-32095"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-25T05:16:06Z",
    "severity": "HIGH"
  },
  "details": "Pexip Infinity before 37.0 has improper input validation in signalling that allows a remote attacker to trigger a software abort via a crafted signalling message, resulting in a denial of service.",
  "id": "GHSA-8jr5-3mrg-hm2v",
  "modified": "2025-12-25T06:30:26Z",
  "published": "2025-12-25T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32095"
    },
    {
      "type": "WEB",
      "url": "https://docs.pexip.com/admin/security_bulletins.htm"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8M5C-8FX3-Q2WX

Vulnerability from github – Published: 2022-02-18 00:00 – Updated: 2026-07-05 00:31

Details

There is an Assertion in 'context_p->next_scanner_info_p->type == SCANNER_TYPE_FUNCTION' failed at parser_parse_function_arguments in /js/js-parser.c of JerryScript commit a6ab5e9.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-22901"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-02-17T03:15:00Z",
    "severity": "MODERATE"
  },
  "details": "There is an Assertion in \u0027context_p-\u003enext_scanner_info_p-\u003etype == SCANNER_TYPE_FUNCTION\u0027 failed at parser_parse_function_arguments in /js/js-parser.c of JerryScript commit a6ab5e9.",
  "id": "GHSA-8m5c-8fx3-q2wx",
  "modified": "2026-07-05T00:31:24Z",
  "published": "2022-02-18T00:00:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22901"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jerryscript-project/jerryscript/issues/4916"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jerryscript-project/jerryscript"
    },
    {
      "type": "WEB",
      "url": "http://jerryscript.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8MP9-P9G8-5RM9

Vulnerability from github – Published: 2026-06-26 21:32 – Updated: 2026-07-06 21:30

Details

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

blk-wbt: remove WARN_ON_ONCE from wbt_init_enable_default()

wbt_init_enable_default() uses WARN_ON_ONCE to check for failures from wbt_alloc() and wbt_init(). However, both are expected failure paths:

wbt_alloc() can return NULL under memory pressure (-ENOMEM)
wbt_init() can fail with -EBUSY if wbt is already registered

syzbot triggers this by injecting memory allocation failures during MTD partition creation via ioctl(BLKPG), causing a spurious warning.

wbt_init_enable_default() is a best-effort initialization called from blk_register_queue() with a void return type. Failure simply means the disk operates without writeback throttling, which is harmless.

Replace WARN_ON_ONCE with plain if-checks, consistent with how wbt_set_lat() in the same file already handles these failures. Add a pr_warn() for the wbt_init() failure to retain diagnostic information without triggering a full stack trace.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-53319"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T20:17:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-wbt: remove WARN_ON_ONCE from wbt_init_enable_default()\n\nwbt_init_enable_default() uses WARN_ON_ONCE to check for failures from\nwbt_alloc() and wbt_init(). However, both are expected failure paths:\n\n- wbt_alloc() can return NULL under memory pressure (-ENOMEM)\n- wbt_init() can fail with -EBUSY if wbt is already registered\n\nsyzbot triggers this by injecting memory allocation failures during MTD\npartition creation via ioctl(BLKPG), causing a spurious warning.\n\nwbt_init_enable_default() is a best-effort initialization called from\nblk_register_queue() with a void return type. Failure simply means the\ndisk operates without writeback throttling, which is harmless.\n\nReplace WARN_ON_ONCE with plain if-checks, consistent with how\nwbt_set_lat() in the same file already handles these failures. Add a\npr_warn() for the wbt_init() failure to retain diagnostic information\nwithout triggering a full stack trace.",
  "id": "GHSA-8mp9-p9g8-5rm9",
  "modified": "2026-07-06T21:30:26Z",
  "published": "2026-06-26T21:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53319"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9b004ff83067cdf96774b45aea4b239ace99a2f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd7a982657077469802594a5165bc30b9a55af70"
    }
  ],
  "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"
    }
  ]
}

CWE-617

Reachable Assertion

GHSA-8FQV-XW49-GH95

GHSA-8HCV-X26H-MCGP

Description

Proof of concept

Impact

Suggested fix

Resolution

GHSA-8HHM-54FQ-9WRX

GHSA-8HPX-Q4CX-GFXW

GHSA-8J48-R5WC-GVR3

GHSA-8J78-7Q6F-P35C

GHSA-8JG6-MX2M-9733

GHSA-8JR5-3MRG-HM2V

GHSA-8M5C-8FX3-Q2WX

GHSA-8MP9-P9G8-5RM9

Mitigation

Mitigation