[ 51.469490] UBSAN: invalid-load in 
/tmp/kernel-vicamo-8789bd62d725-b752/build/include/linux/dma-buf-map.h:224:9
[ 51.469494] load of value 2 is not a valid value for type '_Bool'

https://git.launchpad.net/~vicamo/+git/ubuntu-
kernel/tree/drivers/media/pci/intel/ipu-
psys.c?id=1648371a4229949b4ded06a6387332dd5008540d#n648

 571 int ipu_psys_mapbuf_locked(int fd, struct ipu_psys_fh *fh,                 
      
 572                            struct ipu_psys_kbuffer *kbuf)                  
      
 573 {
...
 648         ret = dma_buf_vmap(kbuf->dbuf, &dmap);                             
      
 649         if (ret) {                                                         
      
 650                 dev_dbg(&psys->adev->dev, "dma buf vmap failed\n");        
      
 651                 goto kbuf_map_fail;                                        
      
 652         }

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https://bugs.launchpad.net/bugs/1958006

Title:
  multiple UBSAN warnings in Intel IPU6 camera driver at boot

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