CVE-2021-47344

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memory leak in zr364xx driver.\nThe problem was in non-freed urb in case of\nusb_submit_urb() fail.\n\nbacktrace:\n [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline]\n [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74\n [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022\n [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]\n [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516\n [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576"}, {"lang": "es", "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: medio: zr364xx: corrige la p\u00e9rdida de memoria en zr364xx_start_readpipe syzbot inform\u00f3 una p\u00e9rdida de memoria en el controlador zr364xx. El problema estaba en la urb no liberada en caso de que fallara usb_submit_urb(). seguimiento: [] kmalloc include/linux/slab.h:561 [en l\u00ednea] [] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [] zr364xx_start_readpipe+0x78/ 0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 [] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [en l\u00ednea] [] 0x851 drivers/media/ usb/zr364xx/zr364xx.c:1516 [] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 []really_probe+0x159/0x500 controladores/base/dd.c:576"}], "id": "CVE-2021-47344", "lastModified": "2026-06-17T04:17:14.910", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47344", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-06-12T15:00:27.492335Z", "version": "2.0.3"}}]}, "published": "2024-05-21T15:15:21.067", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c57b2bd3247925e253729dce283d6bf6abc9339d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c57bfd8000d7677bf435873b440eec0c47f73a08"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d69b39d89f362cfeeb54a68690768d0d257b2c8f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c57b2bd3247925e253729dce283d6bf6abc9339d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c57bfd8000d7677bf435873b440eec0c47f73a08"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d69b39d89f362cfeeb54a68690768d0d257b2c8f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: zr364xx: fix memory leak in zr364xx_start_readpipe", "id": "2282410", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282410"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-401", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: zr364xx: fix memory leak in zr364xx_start_readpipe\nsyzbot reported memory leak in zr364xx driver.\nThe problem was in non-freed urb in case of\nusb_submit_urb() fail.\nbacktrace:\n[<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline]\n[<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74\n[<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022\n[<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]\n[<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516\n[<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n[<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576"], "name": "CVE-2021-47344", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47344\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47344\nhttps://lore.kernel.org/linux-cve-announce/2024052138-CVE-2021-47344-ea37@gregkh/T"], "threat_severity": "Low"}

{}