If you feed 32 bytes in then the kstrtoull() doesn't receive a terminated string so will run off the end.
Signed-off-by: Alan Cox <[email protected]> --- drivers/scsi/lpfc/lpfc_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 25aa9b9..a63542b 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -1054,11 +1054,11 @@ lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, { struct dentry *dent = file->f_path.dentry; struct lpfc_hba *phba = file->private_data; - char dstbuf[32]; + char dstbuf[33]; uint64_t tmp = 0; int size; - memset(dstbuf, 0, 32); + memset(dstbuf, 0, 33); size = (nbytes < 32) ? nbytes : 32; if (copy_from_user(dstbuf, buf, size)) return 0; -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
