floppy: ignore kernel-only members in FDRAWCMD ioctl input

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commit ef87dbe761 upstream.

Always clear out these floppy_raw_cmd struct members after copying the
entire structure from userspace so that the in-kernel version is always
valid and never left in an interdeterminate state.

Signed-off-by: Matthew Daley <mattd@bugfuzz.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Matthew Daley 2014-04-28 19:05:20 +12:00 • committed by Greg Kroah-Hartman

parent 6d194d6e0d

commit fb9a201188

1 changed files with 3 additions and 3 deletions

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drivers/block/floppy.c

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