PatchTheCVE: allwinnertechhttps://patchthecve.com/CVEs with upgrade or downgrade fix stepsCVE-2021-38789: Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not chttps://patchthecve.com/cve/CVE-2021-38789.htmlhttps://patchthecve.com/cve/CVE-2021-38789.htmlWed, 17 Jun 2026 04:02:44 +0000HIGH 7.5: Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not check the caller's permission, in which a third-party app could change system settings.CVE-2021-38788: The Background service in Allwinner R818 SoC Android Q SDK V1.0 is used to manage background applicationshttps://patchthecve.com/cve/CVE-2021-38788.htmlhttps://patchthecve.com/cve/CVE-2021-38788.htmlWed, 17 Jun 2026 04:02:43 +0000HIGH 7.5: The Background service in Allwinner R818 SoC Android Q SDK V1.0 is used to manage background applications. Malicious apps can use the interface provided by the service to set the number of applications allowed to run in the background to 0 and add themselves to the whitelist, so that once other applCVE-2021-38787: There is an integer overflow in the ION driver "/dev/ion" of Allwinner R818 SoC Android Q SDK V1.0 that could https://patchthecve.com/cve/CVE-2021-38787.htmlhttps://patchthecve.com/cve/CVE-2021-38787.htmlWed, 17 Jun 2026 04:02:43 +0000HIGH 7.5: There is an integer overflow in the ION driver "/dev/ion" of Allwinner R818 SoC Android Q SDK V1.0 that could use the ioctl cmd "COMPAT_ION_IOC_SUNXI_FLUSH_RANGE" to cause a system crash (denial of service).CVE-2021-38786: There is a NULL pointer dereference in media/libcedarc/vdecoder of Allwinner R818 SoC Android Q SDK V1.0, whichttps://patchthecve.com/cve/CVE-2021-38786.htmlhttps://patchthecve.com/cve/CVE-2021-38786.htmlWed, 17 Jun 2026 04:02:43 +0000HIGH 7.5: There is a NULL pointer dereference in media/libcedarc/vdecoder of Allwinner R818 SoC Android Q SDK V1.0, which could cause a media crash (denial of service).CVE-2021-38785: There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev thhttps://patchthecve.com/cve/CVE-2021-38785.htmlhttps://patchthecve.com/cve/CVE-2021-38785.htmlWed, 17 Jun 2026 04:02:43 +0000HIGH 7.5: There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev that could use the ioctl cmd IOCTL_GET_IOMMU_ADDR to cause a system crash.CVE-2021-38784: There is a NULL pointer dereference in the syscall open_exec function of Allwinner R818 SoC Android Q SDK V1.0https://patchthecve.com/cve/CVE-2021-38784.htmlhttps://patchthecve.com/cve/CVE-2021-38784.htmlWed, 17 Jun 2026 04:02:43 +0000HIGH 7.5: There is a NULL pointer dereference in the syscall open_exec function of Allwinner R818 SoC Android Q SDK V1.0 that could executable a malicious file to cause a system crash.CVE-2021-38783: There is a Out-of-Bound Write in the Allwinner R818 SoC Android Q SDK V1.0 camera driver "/dev/cedar_dev" throhttps://patchthecve.com/cve/CVE-2021-38783.htmlhttps://patchthecve.com/cve/CVE-2021-38783.htmlWed, 17 Jun 2026 04:02:43 +0000HIGH 7.5: There is a Out-of-Bound Write in the Allwinner R818 SoC Android Q SDK V1.0 camera driver "/dev/cedar_dev" through iotcl cmd IOCTL_SET_PROC_INFO and IOCTL_COPY_PROC_INFO, which could cause a system crash or EoP.