CVE-2022-49524

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: pci: cx23885: Fix the error handling in cx23885_initdev()<br /> <br /> When the driver fails to call the dma_set_mask(), the driver will get<br /> the following splat:<br /> <br /> [ 55.853884] BUG: KASAN: use-after-free in __process_removed_driver+0x3c/0x240<br /> [ 55.854486] Read of size 8 at addr ffff88810de60408 by task modprobe/590<br /> [ 55.856822] Call Trace:<br /> [ 55.860327] __process_removed_driver+0x3c/0x240<br /> [ 55.861347] bus_for_each_dev+0x102/0x160<br /> [ 55.861681] i2c_del_driver+0x2f/0x50<br /> <br /> This is because the driver has initialized the i2c related resources<br /> in cx23885_dev_setup() but not released them in error handling, fix this<br /> bug by modifying the error path that jumps after failing to call the<br /> dma_set_mask().