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(parent: fb9a201) | patch
floppy: don't write kernel-only members to FDRAWCMD ioctl output
authorMatthew Daley <mattd@bugfuzz.com>
Mon, 28 Apr 2014 07:05:21 +0000 (19:05 +1200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 13 May 2014 11:32:47 +0000 (13:32 +0200)
commitb487c62505afbd87654773562fbf2e89bcd52147
tree997f93f51ebe877878dda0dce3aa3c2f5f64ef5ftree | snapshot
parentfb9a2011887416ffdc576d10711dc196343aab69commit | diff
floppy: don't write kernel-only members to FDRAWCMD ioctl output

commit 2145e15e0557a01b9195d1c7199a1b92cb9be81f upstream.

Do not leak kernel-only floppy_raw_cmd structure members to userspace.
This includes the linked-list pointer and the pointer to the allocated
DMA space.

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>
drivers/block/floppy.c diff | blob | history
Domain: System / Uncategorized;