Vulnerability 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 ...
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.8, < 5.10.44 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376Patch
- https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421Patch
- https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2Patch
- https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376Patch
- https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421Patch
- https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2Patch
FAQ
What is CVE-2021-47273?
CVE-2021-47273 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 ...
How severe is CVE-2021-47273?
CVE-2021-47273 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47273?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.