Dan Carpenter e99c0c8b79 xen: Prevent buffer overflow in privcmd ioctl ... The "call" variable comes from the user in privcmd_ioctl_hypercall(). It's an offset into the hypercall_page[] which has (PAGE_SIZE / 32) elements. We need to put an upper bound on it to prevent an out of bounds access. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com> Obtained from: Linux Linux commit: 42d8644bd77dd2d747e004e367cb0c895a606f39 Fixes: bf7313e3b7 ("xen: implement the privcmd user-space device") Submitted by: Elliott Mitchell <ehem+freebsd@m5p.com> Reviewed by: royger		2022-05-06 09:31:32 +02:00
..
hypercall.h	xen: Prevent buffer overflow in privcmd ioctl	2022-05-06 09:31:32 +02:00
synch_bitops.h
xen-os.h