Messages in this thread | | | Date | Sat, 10 May 2014 09:07:42 +0200 | From | Jann Horn <> | Subject | Re: [PATCH] drivers/char/mem.c: Add /dev/ioports, supporting 16-bit and 32-bit ports |
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On Fri, May 09, 2014 at 12:19:16PM -0700, Josh Triplett wrote: > + if (port > 65535) > + return 0; > + switch (count) { [...] > + case 4: > + if (__put_user(inl(port), buf) < 0) > + return -EFAULT;
What if I attempt a four-byte read at 65535? That would access four out-of-bounds bytes, right? [unhandled content-type:application/pgp-signature] | |