cve-2024-39461
Vulnerability from cvelistv5
Published
2024-06-25 14:25
Modified
2024-11-05 09:31
Severity ?
EPSS score ?
Summary
clk: bcm: rpi: Assign ->num before accessing ->hws
References
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: bcm: rpi: Assign -\u003enum before accessing -\u003ehws\n\nCommit f316cdff8d67 (\"clk: Annotate struct clk_hw_onecell_data with\n__counted_by\") annotated the hws member of \u0027struct clk_hw_onecell_data\u0027\nwith __counted_by, which informs the bounds sanitizer about the number\nof elements in hws, so that it can warn when hws is accessed out of\nbounds. As noted in that change, the __counted_by member must be\ninitialized with the number of elements before the first array access\nhappens, otherwise there will be a warning from each access prior to the\ninitialization because the number of elements is zero. This occurs in\nraspberrypi_discover_clocks() due to -\u003enum being assigned after -\u003ehws\nhas been accessed:\n\n UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-raspberrypi.c:374:4\n index 3 is out of range for type \u0027struct clk_hw *[] __counted_by(num)\u0027 (aka \u0027struct clk_hw *[]\u0027)\n\nMove the -\u003enum initialization to before the first access of -\u003ehws, which\nclears up the warning."
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"title": "clk: bcm: rpi: Assign -\u003enum before accessing -\u003ehws",
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"nvd": "{\"cve\":{\"id\":\"CVE-2024-39461\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-25T15:15:14.500\",\"lastModified\":\"2024-09-03T18:12:22.633\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nclk: bcm: rpi: Assign -\u003enum before accessing -\u003ehws\\n\\nCommit f316cdff8d67 (\\\"clk: Annotate struct clk_hw_onecell_data with\\n__counted_by\\\") annotated the hws member of \u0027struct clk_hw_onecell_data\u0027\\nwith __counted_by, which informs the bounds sanitizer about the number\\nof elements in hws, so that it can warn when hws is accessed out of\\nbounds. As noted in that change, the __counted_by member must be\\ninitialized with the number of elements before the first array access\\nhappens, otherwise there will be a warning from each access prior to the\\ninitialization because the number of elements is zero. This occurs in\\nraspberrypi_discover_clocks() due to -\u003enum being assigned after -\u003ehws\\nhas been accessed:\\n\\n UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-raspberrypi.c:374:4\\n index 3 is out of range for type \u0027struct clk_hw *[] __counted_by(num)\u0027 (aka \u0027struct clk_hw *[]\u0027)\\n\\nMove the -\u003enum initialization to before the first access of -\u003ehws, which\\nclears up the warning.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: bcm: rpi: Assign -\u0026gt;num before accessing -\u0026gt;hws Commit f316cdff8d67 (\\\"clk: Annotate struct clk_hw_onecell_data with __counted_by\\\") anot\u00f3 el miembro hws de \u0027struct clk_hw_onecell_data\u0027 con __counted_by, que informa al sanitizante de los l\u00edmites sobre la cantidad de elementos en hws, para que pueda advertir cuando se accede a hws fuera de los l\u00edmites. Como se se\u00f1al\u00f3 en ese cambio, el miembro __counted_by debe inicializarse con la cantidad de elementos antes de que ocurra el primer acceso a la matriz; de lo contrario, habr\u00e1 una advertencia de cada acceso antes de la inicializaci\u00f3n porque la cantidad de elementos es cero. Esto ocurre en raspberrypi_discover_clocks() debido a que -\u0026gt;num se asigna despu\u00e9s de que se haya accedido a -\u0026gt;hws: UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-raspberrypi.c:374:4 index 3 est\u00e1 fuera del rango para el tipo \u0027struct clk_hw *[] __counted_by(num)\u0027 (tambi\u00e9n conocido como \u0027struct clk_hw *[]\u0027) Mueva la inicializaci\u00f3n -\u0026gt;num antes del primer acceso de -\u0026gt;hws, lo que borra la advertencia.\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-129\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6\",\"versionEndExcluding\":\"6.6.34\",\"matchCriteriaId\":\"AC0C6E24-8240-425A-BD1A-F78E6D3A67FC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.5\",\"matchCriteriaId\":\"8366481F-770F-4850-9D0F-2977BD97D5C5\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6dc445c1905096b2ed4db1a84570375b4e00cc0f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9562dbe5cdbb16ac887d27ef6f179980bb99193c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cdf9c7871d58d3df59d2775982e3533adb8ec920\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.