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author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-09-24 15:27:45 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-13 14:51:06 -0700 |
commit | 67ea0764ff204966d8f45b35dd26e939e2377b5a (patch) | |
tree | c1dcfd3bde7380996b4bff230ee947d7f5836dd9 /drivers | |
parent | dcad3ae646c253f445658d695f3e1f3ba0f2ac69 (diff) | |
download | kernel_samsung_smdk4412-67ea0764ff204966d8f45b35dd26e939e2377b5a.zip kernel_samsung_smdk4412-67ea0764ff204966d8f45b35dd26e939e2377b5a.tar.gz kernel_samsung_smdk4412-67ea0764ff204966d8f45b35dd26e939e2377b5a.tar.bz2 |
cciss: fix info leak in cciss_ioctl32_passthru()
commit 58f09e00ae095e46ef9edfcf3a5fd9ccdfad065e upstream.
The arg64 struct has a hole after ->buf_size which isn't cleared. Or if
any of the calls to copy_from_user() fail then that would cause an
information leak as well.
This was assigned CVE-2013-2147.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/block/cciss.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 1dab802..9ee7fe7 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1179,6 +1179,7 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode, int err; u32 cp; + memset(&arg64, 0, sizeof(arg64)); err = 0; err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, |