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CVE-2023-53007 (GCVE-0-2023-53007)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2026-05-11 19:36
VLAI
Title
tracing: Make sure trace_printk() can output as soon as it can be used
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: Make sure trace_printk() can output as soon as it can be used Currently trace_printk() can be used as soon as early_trace_init() is called from start_kernel(). But if a crash happens, and "ftrace_dump_on_oops" is set on the kernel command line, all you get will be: [ 0.456075] <idle>-0 0dN.2. 347519us : Unknown type 6 [ 0.456075] <idle>-0 0dN.2. 353141us : Unknown type 6 [ 0.456075] <idle>-0 0dN.2. 358684us : Unknown type 6 This is because the trace_printk() event (type 6) hasn't been registered yet. That gets done via an early_initcall(), which may be early, but not early enough. Instead of registering the trace_printk() event (and other ftrace events, which are not trace events) via an early_initcall(), have them registered at the same time that trace_printk() can be used. This way, if there is a crash before early_initcall(), then the trace_printk()s will actually be useful.
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: e725c731e3bb1e892e7b564c945b121cb41d1087 , < f97eb0ab066133483a65c93eb894748de2f6b598 (git)
Affected: e725c731e3bb1e892e7b564c945b121cb41d1087 , < b94d7c7654356860dd7719120c7d15ba38b6162a (git)
Affected: e725c731e3bb1e892e7b564c945b121cb41d1087 , < 76b2390fdc80c0a8300e5da5b6b62d201b6fe9ce (git)
Affected: e725c731e3bb1e892e7b564c945b121cb41d1087 , < de3930a4883ddad2244efd6d349013294c62c75c (git)
Affected: e725c731e3bb1e892e7b564c945b121cb41d1087 , < b0af180514edea6c83dc9a299d9f383009c99f25 (git)
Affected: e725c731e3bb1e892e7b564c945b121cb41d1087 , < 198c83963f6335ca6d690cff067679560f2a3a22 (git)
Affected: e725c731e3bb1e892e7b564c945b121cb41d1087 , < 3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253 (git)
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Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 4.14.305 , ≤ 4.14.* (semver)
Unaffected: 4.19.272 , ≤ 4.19.* (semver)
Unaffected: 5.4.231 , ≤ 5.4.* (semver)
Unaffected: 5.10.166 , ≤ 5.10.* (semver)
Unaffected: 5.15.91 , ≤ 5.15.* (semver)
Unaffected: 6.1.9 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Make sure trace_printk() can output as soon as it can be used\n\nCurrently trace_printk() can be used as soon as early_trace_init() is\ncalled from start_kernel(). But if a crash happens, and\n\"ftrace_dump_on_oops\" is set on the kernel command line, all you get will\nbe:\n\n  [    0.456075]   \u003cidle\u003e-0         0dN.2. 347519us : Unknown type 6\n  [    0.456075]   \u003cidle\u003e-0         0dN.2. 353141us : Unknown type 6\n  [    0.456075]   \u003cidle\u003e-0         0dN.2. 358684us : Unknown type 6\n\nThis is because the trace_printk() event (type 6) hasn\u0027t been registered\nyet. That gets done via an early_initcall(), which may be early, but not\nearly enough.\n\nInstead of registering the trace_printk() event (and other ftrace events,\nwhich are not trace events) via an early_initcall(), have them registered at\nthe same time that trace_printk() can be used. This way, if there is a\ncrash before early_initcall(), then the trace_printk()s will actually be\nuseful."
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    "datePublished": "2025-03-27T16:43:38.102Z",
    "dateReserved": "2025-03-27T16:40:15.745Z",
    "dateUpdated": "2026-05-11T19:36:47.776Z",
    "state": "PUBLISHED"
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      "date": "2026-09-16",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53007\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-27T17:15:49.670\",\"lastModified\":\"2026-06-17T06:44:06.327\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing: Make sure trace_printk() can output as soon as it can be used\\n\\nCurrently trace_printk() can be used as soon as early_trace_init() is\\ncalled from start_kernel(). But if a crash happens, and\\n\\\"ftrace_dump_on_oops\\\" is set on the kernel command line, all you get will\\nbe:\\n\\n  [    0.456075]   \u003cidle\u003e-0         0dN.2. 347519us : Unknown type 6\\n  [    0.456075]   \u003cidle\u003e-0         0dN.2. 353141us : Unknown type 6\\n  [    0.456075]   \u003cidle\u003e-0         0dN.2. 358684us : Unknown type 6\\n\\nThis is because the trace_printk() event (type 6) hasn\u0027t been registered\\nyet. That gets done via an early_initcall(), which may be early, but not\\nearly enough.\\n\\nInstead of registering the trace_printk() event (and other ftrace events,\\nwhich are not trace events) via an early_initcall(), have them registered at\\nthe same time that trace_printk() can be used. This way, if there is a\\ncrash before early_initcall(), then the trace_printk()s will actually be\\nuseful.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rastreo: Aseg\u00farese de que trace_printk() pueda generar resultados tan pronto como sea posible. Actualmente, trace_printk() puede usarse tan pronto como se llame a early_trace_init() desde start_kernel(). Sin embargo, si se produce un fallo y se configura \\\"ftrace_dump_on_oops\\\" en la l\u00ednea de comandos del kernel, solo se obtendr\u00e1: [ 0.456075] -0 0dN.2.347519us : Tipo desconocido 6 [ 0.456075] -0 0dN.2.353141us : Tipo desconocido 6 [ 0.456075] -0 0dN.2.358684us : Tipo desconocido 6. Esto se debe a que el evento trace_printk() (tipo 6) a\u00fan no se ha registrado. Esto se realiza mediante una llamada early_initcall(), que puede ser temprana, pero no lo suficiente. En lugar de registrar el evento trace_printk() (y otros eventos ftrace, que no son eventos de seguimiento) mediante una llamada early_initcall(), reg\u00edstrelos al mismo tiempo que trace_printk(). De esta forma, si se produce un fallo antes de la llamada early_initcall(), las llamadas trace_printk() ser\u00e1n realmente 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:34:45+00:00",
      "cve": "CVE-2023-53007",
      "id": "CVE-2023-53007",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "156",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service due to trace_printk() event registration timing",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53007.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:48:33Z",
      "cve": "CVE-2023-53007",
      "id": "CVE-2023-53007",
      "initial_release_date": "2025-03-28T03:38:00Z",
      "product_status:known_affected": "496",
      "product_status:known_not_affected": "131",
      "product_status:recommended": "248",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53007",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53007.json",
      "version": "29"
    }
  }
}



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Tags
Taxonomy of the tags.





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

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.


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.