In the Linux kernel, the following vulnerability has been resolved:
media: dm1105: fix missing error check for dma_alloc_coherent
The return value of dm1105_dma_map(), which handles DMA memory allocation,
is ignored in dm1105_hw_init(). If dma_alloc_coherent() fails, the driver
will proceed using a NULL pointer for DMA transfers, leading to a kernel
oops or invalid hardware access.
Fix this by checking the return value and propagating -ENOMEM on failure.
References 3
https://git.kernel.org/stable/c/07d6a76a17b550e94ca5cc0060ad6e77952390f2
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3eaac9e02d8591d3c790db572ef1c8fa5a841fdb
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f3f135c4fac6194933b952e98a15dc05aa420956
416baaa9-dc9f-4396-8d5f-8c081fb06d67