CVE-2021-47344 (GCVE-0-2021-47344)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:35 – Updated: 2026-05-11 13:52
VLAI
Title
media: zr364xx: fix memory leak in zr364xx_start_readpipe
Summary
In the Linux kernel, the following vulnerability has been resolved: media: zr364xx: fix memory leak in zr364xx_start_readpipe syzbot reported memory leak in zr364xx driver. The problem was in non-freed urb in case of usb_submit_urb() fail. backtrace: [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline] [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline] [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516 [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-12 15:00 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < c57b2bd3247925e253729dce283d6bf6abc9339d (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513 (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < b0633051a6cb24186ff04ce1af99c7de18c1987e (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < 021c294dff030f3ba38eb81e400ba123db32ecbc (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < 0edd6759167295ea9969e89283b81017b4c688aa (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < c57bfd8000d7677bf435873b440eec0c47f73a08 (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < 5f3f81f1c96b501d180021c23c25e9f48eaab235 (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < d69b39d89f362cfeeb54a68690768d0d257b2c8f (git)
Affected: ccbf035ae5de4c535160fc99f73feb44cc55b534 , < 0a045eac8d0427b64577a24d74bb8347c905ac65 (git)
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Linux Linux Affected: 2.6.32
Unaffected: 0 , < 2.6.32 (semver)
Unaffected: 4.4.276 , ≤ 4.4.* (semver)
Unaffected: 4.9.276 , ≤ 4.9.* (semver)
Unaffected: 4.14.240 , ≤ 4.14.* (semver)
Unaffected: 4.19.198 , ≤ 4.19.* (semver)
Unaffected: 5.4.133 , ≤ 5.4.* (semver)
Unaffected: 5.10.51 , ≤ 5.10.* (semver)
Unaffected: 5.12.18 , ≤ 5.12.* (semver)
Unaffected: 5.13.3 , ≤ 5.13.* (semver)
Unaffected: 5.14 , ≤ * (original_commit_for_fix)
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            "lang": "en",
            "value": "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  [\u003cffffffff82baedf6\u003e] kmalloc include/linux/slab.h:561 [inline]\n  [\u003cffffffff82baedf6\u003e] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74\n  [\u003cffffffff82f7cce8\u003e] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022\n  [\u003cffffffff84251dfc\u003e] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]\n  [\u003cffffffff84251dfc\u003e] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516\n  [\u003cffffffff82bb6507\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n  [\u003cffffffff826018a9\u003e] 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"
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      "title": "SUSE CVE CVE-2021-47344",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47344.json",
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                    "id": "CVE-2021-47344",
                    "options": [
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                      },
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              "value": "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  [\u003cffffffff82baedf6\u003e] kmalloc include/linux/slab.h:561 [inline]\n  [\u003cffffffff82baedf6\u003e] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74\n  [\u003cffffffff82f7cce8\u003e] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022\n  [\u003cffffffff84251dfc\u003e] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]\n  [\u003cffffffff84251dfc\u003e] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516\n  [\u003cffffffff82bb6507\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n  [\u003cffffffff826018a9\u003e] really_probe+0x159/0x500 drivers/base/dd.c:576"
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        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47344",
        "datePublished": "2024-05-21T14:35:50.953Z",
        "dateReserved": "2024-05-21T14:28:16.980Z",
        "dateUpdated": "2024-11-04T12:04:06.236Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.