aboutsummaryrefslogtreecommitdiffstats
path: root/fs/filesystems.c
diff options
context:
space:
mode:
authorVasiliy Kulikov <segooon@gmail.com>2010-11-08 14:42:40 +0100
committerJens Axboe <jaxboe@fusionio.com>2010-11-10 14:40:53 +0100
commita014741c0adfb8fb79952939ca087cf03d272bb9 (patch)
tree57bafa05736f172b94fde156bb51798b3ddb6107 /fs/filesystems.c
parent77304d2abac6101f7249754ffdd4421258877ab0 (diff)
downloadkernel_samsung_smdk4412-a014741c0adfb8fb79952939ca087cf03d272bb9.zip
kernel_samsung_smdk4412-a014741c0adfb8fb79952939ca087cf03d272bb9.tar.gz
kernel_samsung_smdk4412-a014741c0adfb8fb79952939ca087cf03d272bb9.tar.bz2
block: ioctl: fix information leak to userland
Structure hd_geometry is copied to userland with 4 padding bytes between cylinders and start fields uninitialized on 64-bit platforms. It leads to leaking of contents of kernel stack memory. Currently there is no memset() in real implementations of getgeo() in drivers/block/, so it makes sense to have memset() in blkdev_ioctl(). Signed-off-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'fs/filesystems.c')
0 files changed, 0 insertions, 0 deletions