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(parent: 1e50997) | patch
floppy: ignore kernel-only members in FDRAWCMD ioctl input
authorMatthew Daley <mattd@bugfuzz.com>
Mon, 28 Apr 2014 07:05:20 +0000 (19:05 +1200)
committerBen Hutchings <ben@decadent.org.uk>
Sun, 18 May 2014 13:58:09 +0000 (14:58 +0100)
commitd79119d4089defc81a49c6a7e26ff5ff86f4b342
treed93ea3f7c0f9160026aab327b3582a5d5770f5a6tree | snapshot
parent1e5099713cefc67aa562f6d8fe43444f41baf52dcommit | diff
floppy: ignore kernel-only members in FDRAWCMD ioctl input

commit ef87dbe7614341c2e7bfe8d32fcb7028cc97442c 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: Ben Hutchings <ben@decadent.org.uk>
drivers/block/floppy.c diff | blob | history
unionfs2-2.6.39.y