diff options
| author |   Kumar Amit Mehta <gmate.amit@gmail.com> | 2015-01-26 16:44:53 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-28 10:52:05 -0800 |
| commit | c1f79c74e222000386f3950ed98d150e6009648b (patch) | |
| tree | 41c1541c9777e5363f909a570e3c68c0a8250230 | |
| parent | staging: lustre: lustre: obdclass: obd_mount.c: Fix NULL dereference (diff) | |
staging: lustre: lustre: mdc: lproc_mdc.c: Fix for potential NULL pointer dereference
In mdc_kuc_write(), OBD_ALLOC(lh, len) may leave 'lh' to NULL as kmalloc
may fail to allocate memory. This fix adds a check to avoid, dereferencing
a NULL pointer.
Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/lustre/lustre/mdc/lproc_mdc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c index c420219c0a14..c791941bd810 100644 --- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c +++ b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c @@ -106,6 +106,8 @@ static ssize_t mdc_kuc_write(struct file *file, /* for mockup below */ 2 * cfs_size_round(sizeof(*hai)); OBD_ALLOC(lh, len); + if (!lh) + return -ENOMEM; lh->kuc_magic = KUC_MAGIC; lh->kuc_transport = KUC_TRANSPORT_HSM; |