{ "id": "CVE-2021-47173", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-03-25T10:15:09.010", "lastModified": "2024-11-21T06:35:33.280", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc/uss720: fix memory leak in uss720_probe\n\nuss720_probe forgets to decrease the refcount of usbdev in uss720_probe.\nFix this by decreasing the refcount of usbdev by usb_put_dev.\n\nBUG: memory leak\nunreferenced object 0xffff888101113800 (size 2048):\n comm \"kworker/0:1\", pid 7, jiffies 4294956777 (age 28.870s)\n hex dump (first 32 bytes):\n ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00 ....1...........\n 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 ................\n backtrace:\n [] kmalloc include/linux/slab.h:554 [inline]\n [] kzalloc include/linux/slab.h:684 [inline]\n [] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582\n [] hub_port_connect drivers/usb/core/hub.c:5129 [inline]\n [] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]\n [] port_event drivers/usb/core/hub.c:5509 [inline]\n [] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591\n [] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275\n [] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421\n [] kthread+0x178/0x1b0 kernel/kthread.c:292\n [] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc/uss720: corrige la p\u00e9rdida de memoria en uss720_probe uss720_probe olvida disminuir el recuento de usbdev en uss720_probe. Solucione este problema disminuyendo el recuento de usbdev por usb_put_dev. ERROR: p\u00e9rdida de memoria, objeto sin referencia 0xffff888101113800 (tama\u00f1o 2048): comunicaci\u00f3n \"kworker/0:1\", pid 7, jiffies 4294956777 (edad 28,870 s) volcado hexadecimal (primeros 32 bytes): ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00 ....1.......... 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 ................. ... seguimiento: [] kmalloc include/linux/slab.h:554 [en l\u00ednea] [] kzalloc include/linux/slab.h:684 [en l\u00ednea] [] usb_alloc_dev+0x32/ 0x450 controladores/usb/core/usb.c:582 [] hub_port_connect drivers/usb/core/hub.c:5129 [en l\u00ednea] [] hub_port_connect_change drivers/usb/core/hub.c:5363 [ en l\u00ednea] [] port_event drivers/usb/core/hub.c:5509 [en l\u00ednea] [] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591 [] Process_one_work+ 0x2c9/0x600 kernel/workqueue.c:2275 [] trabajador_thread+0x59/0x5d0 kernel/workqueue.c:2421 [] kthread+0x178/0x1b0 kernel/kthread.c:292 [ ] ret_from_fork +0x1f/0x30 arco/x86/entrada/entrada_64.S:294" } ], "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": "CWE-401" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "4.4.271", "matchCriteriaId": "2B1B6127-AF02-481C-BFDC-B04933AE9EE0" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "4.9.271", "matchCriteriaId": "1E7DAE3A-78E9-45DB-96D8-4541CD7DC26B" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "4.14.235", "matchCriteriaId": "03A23445-0C1A-42AB-AC5C-768360DDF32C" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "4.19.193", "matchCriteriaId": "C8DEF3EC-88D9-4B89-8CF9-64BD6C863C9D" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.4.124", "matchCriteriaId": "06FE0F99-F7A9-462A-8355-30E2EDA9826B" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.42", "matchCriteriaId": "C3E7E799-1C8A-45FB-9E07-4731996144C9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.12.9", "matchCriteriaId": "2C8A1D02-81A7-44E5-ACFD-CC6A6694F930" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] } ] }