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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-10-31 21:00:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 07:34:19 -0800 |
| commit | 894a160626d09198b104ea6702d688eca90623ad (patch) | |
| tree | 40d10a2ce999f16d976fe879f0ef694e72352947 /fs/posix_acl.c | |
| parent | 433b0da5d2248024c21cf39ebfc7a02d0b1acf01 (diff) | |
xfs: underflow bug in xfs_attrlist_by_handle()
commit 31978b5cc66b8ba8a7e8eef60b12395d41b7b890 upstream.
If we allocate less than sizeof(struct attrlist) then we end up
corrupting memory or doing a ZERO_PTR_SIZE dereference.
This can only be triggered with CAP_SYS_ADMIN.
Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Fabian Yamaguchi <fabs@goesec.de>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/posix_acl.c')
0 files changed, 0 insertions, 0 deletions