Salva Peiró
084b6e7765
staging/cxt1e1/linux.c: Correct arbitrary memory write in c4_ioctl()
...
The function c4_ioctl() writes data from user in ifr->ifr_data
to the kernel struct data arg, without any iolen bounds checking.
This can lead to a arbitrary write outside of the struct data arg.
Corrected by adding bounds-checking of iolen before the copy_from_user().
Signed-off-by: Salva Peiró <speiro@ai2.upv.es>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-04 16:20:01 -08:00
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