In the Linux kernel, the following vulnerability has been resolved: udmabuf: Set the DMA mask for the udmabuf device (v2) If the DMA mask is not set explicitly, the following warning occurs when th…

摘要

In the Linux kernel, the following vulnerability has been resolved: udmabuf: Set the DMA mask for the udmabuf device (v2) If the DMA mask is not set explicitly, the following warning occurs when the userspace tries to access the dma-buf via the CPU as reported by syzbot here: WARNING: CPU: 1 PID: 3595 at kernel/dma/mapping.c:188 __dma_map_sg_attrs+0x181/0x1f0 kernel/dma/mapping.c:188 Modules linked in: CPU: 0 PID: 3595 Comm: syz-executor249 Not tainted 5.17.0-rc2-syzkaller-00316-g0457e5153e0…

中文摘要建设中，暂以英文摘要呈现（DR-003 v2）。