Re: [PATCH v2] wifi: wilc1000: use vmm_table as array in wilc struct

[Michael Walle]

Am 2023-10-16 10:29, schrieb Alexis Lothoré:
> From: Ajay Singh <ajay.kathat@xxxxxxxxxxxxx>
>
> Enabling KASAN and running some iperf tests raises some memory issues 
> with
> vmm_table:
>
> BUG: KASAN: slab-out-of-bounds in wilc_wlan_handle_txq+0x6ac/0xdb4
> Write of size 4 at addr c3a61540 by task wlan0-tx/95
>
> KASAN detects that we are writing data beyond range allocated to 
> vmm_table.
> There is indeed a mismatch between the size passed to allocator in
> wilc_wlan_init, and the range of possible indexes used later: 
> allocation
> size is missing a multiplication by sizeof(u32)
>
> Fixes: 40b717bfcefa ("wifi: wilc1000: fix DMA on stack objects")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Ajay Singh <ajay.kathat@xxxxxxxxxxxxx>
> Signed-off-by: Alexis Lothoré <alexis.lothore@xxxxxxxxxxx>

Reviewed-by: Michael Walle <mwalle@xxxxxxxxxx>

-michael