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(parent: 5d0af85) | patch
xfs: xfs_ioctl: fix information leak to userland
authorKulikov Vasiliy <segooon@gmail.com>
Sat, 30 Oct 2010 14:26:17 +0000 (14:26 +0000)
committerAlex Elder <aelder@sgi.com>
Wed, 10 Nov 2010 18:00:47 +0000 (12:00 -0600)
commit6762b938eac878a30a90e770ac655874c36bc642
tree424b9893aa5494104b8d93de2b9c52fbdce37b75tree | snapshot (tar.gz zip)
parent5d0af85cd0964bb845b63d5059bb20e8f7731e65commit | diff
xfs: xfs_ioctl: fix information leak to userland

al_hreq is copied from userland.  If al_hreq.buflen is not properly aligned
then xfs_attr_list will ignore the last bytes of kbuf.  These bytes are
unitialized.  It leads to leaking of contents of kernel stack memory.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
fs/xfs/linux-2.6/xfs_ioctl.c diff | blob | blame | history