CVE-2021-47273usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled
- 5.5MediumCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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 ...
Timeline
ID reserved
By Linux
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 013af227f58a97ffc61b99301f8f4448dc7e7f55 – < 750a0d75564293be3ed50f13ef7f38ab75106421
- affected 013af227f58a97ffc61b99301f8f4448dc7e7f55 – < d8dd3754e707104a34f8ec595034d503ea8871a2
- affected 013af227f58a97ffc61b99301f8f4448dc7e7f55 – < 4d2aa178d2ad2fb156711113790dde13e9aa2376
- affected 5.8
- unaffected < 5.8
- unaffected 5.10.44 – ≤ 5.10.*
- unaffected 5.12.11 – ≤ 5.12.*
- unaffected 5.13 – ≤ *
References
References3
- https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-34278 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-47273)Record last updated .