CVE-2024-57930 (GCVE-0-2024-57930)

Vulnerability from cvelistv5 – Published: 2025-01-21 12:01 – Updated: 2025-11-03 20:55
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: Have process_string() also allow arrays In order to catch a common bug where a TRACE_EVENT() TP_fast_assign() assigns an address of an allocated string to the ring buffer and then references it in TP_printk(), which can be executed hours later when the string is free, the function test_event_printk() runs on all events as they are registered to make sure there's no unwanted dereferencing. It calls process_string() to handle cases in TP_printk() format that has "%s". It returns whether or not the string is safe. But it can have some false positives. For instance, xe_bo_move() has: TP_printk("move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s", __entry->move_lacks_source ? "yes" : "no", __entry->bo, __entry->size, xe_mem_type_to_name[__entry->old_placement], xe_mem_type_to_name[__entry->new_placement], __get_str(device_id)) Where the "%s" references into xe_mem_type_to_name[]. This is an array of pointers that should be safe for the event to access. Instead of flagging this as a bad reference, if a reference points to an array, where the record field is the index, consider it safe.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 85d7635d54d75a2589f28583dc17feedc3aa4ad6 , < 3bcdc9039a6e9e6e47ed689a37b8d57894a3c571 (git)
Affected: f3ff759ec636b4094b8eb2c3801e4e6c97a6b712 , < 631b1e09e213c86d5a4ce23d45c81af473bb0ac7 (git)
Affected: 2f6ad0b613cd45cca48e6eb04f65351db018afb0 , < a64e5295ebc4afdefe69cdf16cc286a60ff8ba4b (git)
Affected: 683eccacc02d2eb25d1c34b8fb0363fcc7e08f64 , < 92bd18c74624e5eb9f96e70076aa46293f4b626f (git)
Affected: 65a25d9f7ac02e0cf361356e834d1c71d36acca9 , < afc6717628f959941d7b33728570568b4af1c4b8 (git)
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    Linux Linux Affected: 6.1.122 , < 6.1.124 (semver)
Affected: 6.6.68 , < 6.6.70 (semver)
Affected: 6.12.7 , < 6.12.9 (semver)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Have process_string() also allow arrays\n\nIn order to catch a common bug where a TRACE_EVENT() TP_fast_assign()\nassigns an address of an allocated string to the ring buffer and then\nreferences it in TP_printk(), which can be executed hours later when the\nstring is free, the function test_event_printk() runs on all events as\nthey are registered to make sure there\u0027s no unwanted dereferencing.\n\nIt calls process_string() to handle cases in TP_printk() format that has\n\"%s\". It returns whether or not the string is safe. But it can have some\nfalse positives.\n\nFor instance, xe_bo_move() has:\n\n TP_printk(\"move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s\",\n            __entry-\u003emove_lacks_source ? \"yes\" : \"no\", __entry-\u003ebo, __entry-\u003esize,\n            xe_mem_type_to_name[__entry-\u003eold_placement],\n            xe_mem_type_to_name[__entry-\u003enew_placement], __get_str(device_id))\n\nWhere the \"%s\" references into xe_mem_type_to_name[]. This is an array of\npointers that should be safe for the event to access. Instead of flagging\nthis as a bad reference, if a reference points to an array, where the\nrecord field is the index, consider it safe."
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          "url": "https://git.kernel.org/stable/c/afc6717628f959941d7b33728570568b4af1c4b8"
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      "title": "tracing: Have process_string() also allow arrays",
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    "cveId": "CVE-2024-57930",
    "datePublished": "2025-01-21T12:01:27.807Z",
    "dateReserved": "2025-01-19T11:50:08.376Z",
    "dateUpdated": "2025-11-03T20:55:59.231Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-57930\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-01-21T12:15:26.600\",\"lastModified\":\"2025-11-03T21:18:44.837\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing: Have process_string() also allow arrays\\n\\nIn order to catch a common bug where a TRACE_EVENT() TP_fast_assign()\\nassigns an address of an allocated string to the ring buffer and then\\nreferences it in TP_printk(), which can be executed hours later when the\\nstring is free, the function test_event_printk() runs on all events as\\nthey are registered to make sure there\u0027s no unwanted dereferencing.\\n\\nIt calls process_string() to handle cases in TP_printk() format that has\\n\\\"%s\\\". It returns whether or not the string is safe. But it can have some\\nfalse positives.\\n\\nFor instance, xe_bo_move() has:\\n\\n TP_printk(\\\"move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s\\\",\\n            __entry-\u003emove_lacks_source ? \\\"yes\\\" : \\\"no\\\", __entry-\u003ebo, __entry-\u003esize,\\n            xe_mem_type_to_name[__entry-\u003eold_placement],\\n            xe_mem_type_to_name[__entry-\u003enew_placement], __get_str(device_id))\\n\\nWhere the \\\"%s\\\" references into xe_mem_type_to_name[]. This is an array of\\npointers that should be safe for the event to access. Instead of flagging\\nthis as a bad reference, if a reference points to an array, where the\\nrecord field is the index, consider it safe.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing: Hacer que process_string() tambi\u00e9n permita matrices Para detectar un error com\u00fan en el que un TP_fast_assign() de TRACE_EVENT() asigna una direcci\u00f3n de una cadena asignada al b\u00fafer de anillo y luego la referencia en TP_printk(), que se puede ejecutar horas despu\u00e9s cuando la cadena est\u00e1 libre, la funci\u00f3n test_event_printk() se ejecuta en todos los eventos a medida que se registran para asegurarse de que no haya desreferenciaciones no deseadas. Llama a process_string() para gestionar los casos en formato TP_printk() que tienen \\\"%s\\\". Devuelve si la cadena es segura o no. Pero puede tener algunos falsos positivos. Por ejemplo, xe_bo_move() tiene: TP_printk(\\\"move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s\\\", __entry-\u0026gt;move_lacks_source ? \\\"yes\\\" : \\\"no\\\", __entry-\u0026gt;bo, __entry-\u0026gt;size, xe_mem_type_to_name[__entry-\u0026gt;old_placement], xe_mem_type_to_name[__entry-\u0026gt;new_placement], __get_str(device_id)) Where the \\\"%s\\\" Donde \\\"%s\\\" hace referencia a xe_mem_type_to_name[]. Esta es una matriz de punteros a los que el evento deber\u00eda poder acceder de forma segura. En lugar de marcar esto como una referencia incorrecta, si una referencia apunta a una matriz, donde el campo de registro es el \u00edndice, consid\u00e9rela segura.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1.122\",\"versionEndExcluding\":\"6.1.124\",\"matchCriteriaId\":\"7EDA3ED4-4116-4259-BEE5-ABEFBBB0E710\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.68\",\"versionEndExcluding\":\"6.6.70\",\"matchCriteriaId\":\"97FA6055-53B4-4B50-8BC9-C6F6FEA0E249\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12.7\",\"versionEndExcluding\":\"6.12.9\",\"matchCriteriaId\":\"12907B6F-F263-4F75-8011-F58AC6DD3998\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"93C0660D-7FB8-4FBA-892A-B064BA71E49E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"034C36A6-C481-41F3-AE9A-D116E5BE6895\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3bcdc9039a6e9e6e47ed689a37b8d57894a3c571\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/631b1e09e213c86d5a4ce23d45c81af473bb0ac7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/92bd18c74624e5eb9f96e70076aa46293f4b626f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a64e5295ebc4afdefe69cdf16cc286a60ff8ba4b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/afc6717628f959941d7b33728570568b4af1c4b8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
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}


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  • 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.
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  • 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.



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