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staging/lustre/llite: don't panic when fid is insane

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LASSERT should never be done on data that is
received to over the network. Return EINVAL
when server returns invalid fid despite of
it_status == 0.

Signed-off-by: Sergey Cheremencev <sergey.cheremencev@seagate.com>
Seagate-bug-id: MRP-3073
Reviewed-on: http://review.whamcloud.com/17985
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7422
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergey Cheremencev 2016-06-20 16:55:44 -04:00 committed by Greg Kroah-Hartman
parent aea7ccd985
commit c681528a2b
1 changed files with 7 additions and 1 deletions
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8
drivers/staging/lustre/lustre/llite/llite_lib.c
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@ -1918,7 +1918,13 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
* At this point server returns to client's same fid as client
* generated for creating. So using ->fid1 is okay here.
*/
LASSERT(fid_is_sane(&md.body->fid1));
if (!fid_is_sane(&md.body->fid1)) {
CERROR("%s: Fid is insane " DFID "\n",
ll_get_fsname(sb, NULL, 0),
PFID(&md.body->fid1));
rc = -EINVAL;
goto out;
}
*inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1,
sbi->ll_flags & LL_SBI_32BIT_API),