{"cve":"CVE-2021-47344","nvd":{"published":"2024-05-21T15:15:21.067","modified":"2026-06-17T04:17:14.910","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: zr364xx: fix memory leak in zr364xx_start_readpipe\n\nsyzbot reported 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","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc","https://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65","https://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa","https://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235","https://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47344","score":0.00245,"percentile":0.15825,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}