cve-2024-38602
Vulnerability from cvelistv5
Published
2024-06-19 13:48
Modified
2024-11-05 09:30
Severity ?
Summary
ax25: Fix reference count leak issues of ax25_dev
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ea02699c7557eeb35ccff2bd822de1b3e09d868Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38eb01edfdaa1562fa00429be2e33f45383b1b3aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81d8240b0a243b3ddd8fa8aa172f1acc2f7cc8f3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae467750a3765dd1092eb29f58247950a2f9b60cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b505e0319852b08a3a716b64620168eab21f4cedPatch
Impacted products
Vendor Product Version
Linux Linux Version: 5.17
Show details on NVD website

To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-38602\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T14:15:20.183\",\"lastModified\":\"2024-08-27T16:01:39.983\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nax25: Fix reference count leak issues of ax25_dev\\n\\nThe ax25_addr_ax25dev() and ax25_dev_device_down() exist a reference\\ncount leak issue of the object \\\"ax25_dev\\\".\\n\\nMemory leak issue in ax25_addr_ax25dev():\\n\\nThe reference count of the object \\\"ax25_dev\\\" can be increased multiple\\ntimes in ax25_addr_ax25dev(). This will cause a memory leak.\\n\\nMemory leak issues in ax25_dev_device_down():\\n\\nThe reference count of ax25_dev is set to 1 in ax25_dev_device_up() and\\nthen increase the reference count when ax25_dev is added to ax25_dev_list.\\nAs a result, the reference count of ax25_dev is 2. But when the device is\\nshutting down. The ax25_dev_device_down() drops the reference count once\\nor twice depending on if we goto unlock_put or not, which will cause\\nmemory leak.\\n\\nAs for the issue of ax25_addr_ax25dev(), it is impossible for one pointer\\nto be on a list twice. So add a break in ax25_addr_ax25dev(). As for the\\nissue of ax25_dev_device_down(), increase the reference count of ax25_dev\\nonce in ax25_dev_device_up() and decrease the reference count of ax25_dev\\nafter it is removed from the ax25_dev_list.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ax25: soluciona problemas de p\u00e9rdida de recuento de referencias de ax25_dev. Ax25_addr_ax25dev() y ax25_dev_device_down() existen un problema de p\u00e9rdida de recuento de referencias del objeto \\\"ax25_dev\\\". Problema de p\u00e9rdida de memoria en ax25_addr_ax25dev(): el recuento de referencias del objeto \\\"ax25_dev\\\" se puede aumentar varias veces en ax25_addr_ax25dev(). Esto provocar\u00e1 una p\u00e9rdida de memoria. Problemas de p\u00e9rdida de memoria en ax25_dev_device_down(): el recuento de referencias de ax25_dev se establece en 1 en ax25_dev_device_up() y luego aumenta el recuento de referencias cuando se agrega ax25_dev a ax25_dev_list. Como resultado, el recuento de referencia de ax25_dev es 2. Pero cuando el dispositivo se est\u00e1 apagando. El ax25_dev_device_down() reduce el recuento de referencias una o dos veces dependiendo de si vamos a unlock_put o no, lo que provocar\u00e1 una p\u00e9rdida de memoria. En cuanto al problema de ax25_addr_ax25dev(), es imposible que un puntero est\u00e9 en una lista dos veces. Entonces agregue una interrupci\u00f3n en ax25_addr_ax25dev(). En cuanto al problema de ax25_dev_device_down(), aumente el recuento de referencias de ax25_dev una vez en ax25_dev_device_up() y disminuya el recuento de referencias de ax25_dev despu\u00e9s de que se elimine de ax25_dev_list.\"}],\"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\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"6.1.93\",\"matchCriteriaId\":\"899D7A4F-A23D-4FA2-84B4-4BAA03F98BBC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.33\",\"matchCriteriaId\":\"FCE796DF-3B50-4DC6-BAE5-95271068FC9E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.8.12\",\"matchCriteriaId\":\"80550309-67AB-4FD1-AC07-3DED5C4F01B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.9\",\"versionEndExcluding\":\"6.9.3\",\"matchCriteriaId\":\"E07124C1-19E8-4D21-828D-9932A01D3011\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1ea02699c7557eeb35ccff2bd822de1b3e09d868\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/38eb01edfdaa1562fa00429be2e33f45383b1b3a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/81d8240b0a243b3ddd8fa8aa172f1acc2f7cc8f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ae467750a3765dd1092eb29f58247950a2f9b60c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b505e0319852b08a3a716b64620168eab21f4ced\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
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}


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