CVE-2021-47273 (GCVE-0-2021-47273)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:20 – Updated: 2026-05-11 13:51
VLAI
Title
usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled When only PHY1 is used (for example on Odroid-HC4), the regmap init code uses the usb2 ports when doesn't initialize the PHY1 regmap entry. This fixes: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 ... pc : regmap_update_bits_base+0x40/0xa0 lr : dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8 ... Call trace: regmap_update_bits_base+0x40/0xa0 dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8 dwc3_meson_g12a_usb2_init+0x7c/0xc8 dwc3_meson_g12a_usb_init+0x28/0x48 dwc3_meson_g12a_probe+0x298/0x540 platform_probe+0x70/0xe0 really_probe+0xf0/0x4d8 driver_probe_device+0xfc/0x168 ...
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 013af227f58a97ffc61b99301f8f4448dc7e7f55 , < 750a0d75564293be3ed50f13ef7f38ab75106421 (git)
Affected: 013af227f58a97ffc61b99301f8f4448dc7e7f55 , < d8dd3754e707104a34f8ec595034d503ea8871a2 (git)
Affected: 013af227f58a97ffc61b99301f8f4448dc7e7f55 , < 4d2aa178d2ad2fb156711113790dde13e9aa2376 (git)
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Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.44 , ≤ 5.10.* (semver)
Unaffected: 5.12.11 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:10:30+00:00",
      "cve": "CVE-2021-47273",
      "id": "CVE-2021-47273",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47273.json",
      "version": "3"
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    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-10-07T02:15:46Z",
      "cve": "CVE-2021-47273",
      "id": "CVE-2021-47273",
      "initial_release_date": "2024-05-23T03:05:08Z",
      "product_status:known_not_affected": "283",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47273",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47273.json",
      "version": "17"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2021-47273\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T13:51:19.137Z\", \"dateReserved\": \"2024-05-21T13:27:52.127Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:20:02.038Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
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  }
}



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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

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.