Unnamed repository; edit this file 'description' to name the repository. https://gitea.privatedns.org/xavi/android_kernel_m2note/atom?h=ng-7.1.2 2017-11-06T14:26:30+00:00 2017-11-06T14:26:30+00:00 Prabhakar Lad prabhakar.csengg@gmail.com 2017-07-20T12:02:09+00:00 urn:sha1:f07aaebdae10eddbbd4b12c2fa3de7b1965c576a commit da05d52d2f0f6bd61094a0cd045fed94bf7d673a upstream. this patch makes sure VPFE_CMD_S_CCDC_RAW_PARAMS ioctl no longer works for vpfe_capture driver with a minimal patch suitable for backporting. - This ioctl was never in public api and was only defined in kernel header. - The function set_params constantly mixes up pointers and phys_addr_t numbers. - This is part of a 'VPFE_CMD_S_CCDC_RAW_PARAMS' ioctl command that is described as an 'experimental ioctl that will change in future kernels'. - The code to allocate the table never gets called after we copy_from_user the user input over the kernel settings, and then compare them for inequality. - We then go on to use an address provided by user space as both the __user pointer for input and pass it through phys_to_virt to come up with a kernel pointer to copy the data to. This looks like a trivially exploitable root hole. Due to these reasons we make sure this ioctl now returns -EINVAL and backport this patch as far as possible. Fixes: 5f15fbb68fd7 ("V4L/DVB (12251): v4l: dm644x ccdc module for vpfe capture driver") Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Cc: <stable@vger.kernel.org> # for v3.7 and up Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Willy Tarreau <w@1wt.eu> 2016-08-15T02:19:42+00:00 Meizu OpenSource patchwork@meizu.com 2016-08-15T02:19:42+00:00 urn:sha1:d2e1446d81725c351dc73a03b397ce043fb18452