CVE-2022-48772

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: lgdt3306a: Add a check against null-pointer-def<br /> <br /> The driver should check whether the client provides the platform_data.<br /> <br /> The following log reveals it:<br /> <br /> [ 29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40<br /> [ 29.610730] Read of size 40 at addr 0000000000000000 by task bash/414<br /> [ 29.612820] Call Trace:<br /> [ 29.613030] <br /> [ 29.613201] dump_stack_lvl+0x56/0x6f<br /> [ 29.613496] ? kmemdup+0x30/0x40<br /> [ 29.613754] print_report.cold+0x494/0x6b7<br /> [ 29.614082] ? kmemdup+0x30/0x40<br /> [ 29.614340] kasan_report+0x8a/0x190<br /> [ 29.614628] ? kmemdup+0x30/0x40<br /> [ 29.614888] kasan_check_range+0x14d/0x1d0<br /> [ 29.615213] memcpy+0x20/0x60<br /> [ 29.615454] kmemdup+0x30/0x40<br /> [ 29.615700] lgdt3306a_probe+0x52/0x310<br /> [ 29.616339] i2c_device_probe+0x951/0xa90