Bugzilla – Bug 1224885
VUL-0: CVE-2021-47273: kernel: usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled
Last modified: 2024-05-28 11:32:50 UTC
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 ... References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47273 https://www.cve.org/CVERecord?id=CVE-2021-47273 https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376 https://git.kernel.org/stable/c/750a0d75564293be3ed50f13ef7f38ab75106421 https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47273.mbox
nothing to be done
Nothing to do, closing.