Commit c1f79c74 authored Jan 26, 2015 by Kumar Amit Mehta Committed by Greg Kroah-Hartman Jan 28, 2015

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>

parent 1e3e981a

drivers/staging/lustre/lustre/mdc/lproc_mdc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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;